NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
381 reportsClear category filter127,000 miles · Oct 26, 2023
Engine
The contact owns a 2016 Ford Explorer. The contact stated while driving at various speeds, the vehicle jerked and independently shut off while on the freeway. The contact stated that the accelerator pedal was depressed to the floorboard during the failure. The contact pulled to the side of the road and was able to restart the ve…
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The contact owns a 2016 Ford Explorer. The contact stated while driving at various speeds, the vehicle jerked and independently shut off while on the freeway. The contact stated that the accelerator pedal was depressed to the floorboard during the failure. The contact pulled to the side of the road and was able to restart the vehicle after 45 minutes. No warning light was illuminated. The vehicle was taken to a dealer to be diagnosed. The contact was informed that the canister purge valve needed to be changed. The vehicle was repaired. After a several months, the failure had reoccurred. The vehicle was not diagnosed. The contact was informed that the failure could be due to a faulty throttle body. The vehicle had not been repaired. The manufacturer was made aware of the failure and determined that the VIN was not included in a recall. The failure mileage was approximately 127,000.
NHTSA ODI #11552067
Mileage unknown · Oct 16, 2023
Engine
Leaking coolant. Water pump failure.
NHTSA ODI #11550312
Mileage unknown · Oct 13, 2023
EngineEngine And Engine Cooling
Water pump failure, engine coolant leakage from water pump
NHTSA ODI #11549893
Mileage unknown · Oct 12, 2023
Engine
Last night check engine light turned on. I called the dealer to get an appointment first thing next morning to get it checked. In next 2 minutes engine coolant over temperature sign turned on. i got scared and stopped the car immediately and got it towed to the dealer right away. got a call from the dealer saying that the engine…
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Last night check engine light turned on. I called the dealer to get an appointment first thing next morning to get it checked. In next 2 minutes engine coolant over temperature sign turned on. i got scared and stopped the car immediately and got it towed to the dealer right away. got a call from the dealer saying that the engine blew up and needs to be replaced. to my question how this could be the case for the engine to blow up within 2 ninutes of the furst check engine sign turning on, i was told by the dealer representative that the engine damage was done before even warning lights got on. This is unacceptable and extremely dangerous! Car failed to provide proper warnings which caused very dangerous to the safety and ireversable damage to the car. Ford denied any liability although the car mileage is still under 50,000 miles. This is clearely Ford liability and very serious question of safety. This needs to be addressed on a very urgent basis. I am not even talking about the high quote of $12000 repair quote for the engine replacement that i have to face at the dealer for the defective vehicle manufactured by Ford! This is unacceptable!
NHTSA ODI #11549712
105,000 miles · Oct 10, 2023
Engine
The contact owns a 2016 Ford Explorer. The contact stated that while driving at 70 MPH, the vehicle accelerator pedal was stiff. The contact pulled over and noticed abnormal noises coming from the engine. No warning light was illuminated. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed …
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The contact owns a 2016 Ford Explorer. The contact stated that while driving at 70 MPH, the vehicle accelerator pedal was stiff. The contact pulled over and noticed abnormal noises coming from the engine. No warning light was illuminated. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the failure was due to a defect in the motor. The vehicle had not been repaired. The manufacturer was made aware of the failure and advised the contact to contact the NHTSA Hotline. The failure mileage was approximately 105,000.
NHTSA ODI #11549144
Mileage unknown · Oct 5, 2023
Engine
My check engine light came on and began blinking. I had the car towed to a local shop to avoid any additional damage to the engine. The shop determined the car had significantly overheated due to a faulty water pump and the engine would have to be replaced. Leading up to this my check engine light never came on and the temperatu…
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My check engine light came on and began blinking. I had the car towed to a local shop to avoid any additional damage to the engine. The shop determined the car had significantly overheated due to a faulty water pump and the engine would have to be replaced. Leading up to this my check engine light never came on and the temperature gauge never spiked; there was no indication it was over heating. After being quoted $9k to replace the engine, I called the dealership looking for help. They are aware of the extensive issues I’ve had with my vehicle but were unable to help me because I’m over 100k miles (I opted for the extended service plan) and suggested I call the Ford Customer Service line in hopes they could assist. I was denied a claim due to my mileage and instructed to write a letter to the Ford Customer Relationship Center to escalate my case. I was told my Case would remain on file and I would be notified if a recall was issued at a later date. I asked if a recall was issued would I still have to be in possession of the vehicle to receive any monetary reimbursement, she advised that I would need to have my original receipt from the purchase of the vehicle AND the recall would have to specifically state that they would reimburse those who paid out of pocket to get their vehicles repaired. I am without a car until I figure out how to pay for the repairs or buy a new vehicle; I was not expecting my trade-in value to be $0 and Ford couldn’t care less.
NHTSA ODI #11548425
Mileage unknown · Oct 4, 2023
Engine
November 1, 2022 my car went to the dealership because the check engine light came on. We had it towed to our local repair shop and they suggested it go to the dealership as it appeared that there was a crack leaking fluid into the engine. It was at that time I was notified that I was going to need a new engine and it was sug…
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November 1, 2022 my car went to the dealership because the check engine light came on. We had it towed to our local repair shop and they suggested it go to the dealership as it appeared that there was a crack leaking fluid into the engine. It was at that time I was notified that I was going to need a new engine and it was suggested that I go through Ford Motor Company for assistance to cover the replacement. They agreed to covering 60% of the repair. I waited until July for an engine to be available. I picked up my car on 7/16/23 and on 8/15/23 it was towed back to the dealership and determined that the new engine had failed. Another new engine ordered and we are still waiting to get my car back. Possibly it will be back next week.
NHTSA ODI #11548330
Mileage unknown · Oct 3, 2023
Engine
2016 Ford Explorer V6 Ecoboost with only 63,000 miles, the water pump is leaking. This is a well known failure with hundreds if not thousands of complaints. The repair is extensive and costly for a $70 part that is known to fail. A water pump seal and/or rubber gasket failure will result in water leaking into the engine and the …
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2016 Ford Explorer V6 Ecoboost with only 63,000 miles, the water pump is leaking. This is a well known failure with hundreds if not thousands of complaints. The repair is extensive and costly for a $70 part that is known to fail. A water pump seal and/or rubber gasket failure will result in water leaking into the engine and the engine either going into limp mode or shutting down. The occupants of the vehicle can be put in an unsafe situation anytime there is an engine failure, for example, an engine failing in an intersection, or on a long drive in adverse weather in the middle of nowhere, or in the dark on an unlit highway. Ford is VERY AWARE of this problem and this water pump design should be on a recall list. I expect NHTSA to require Ford to fix this major problem. I haven't taken it to the shop as I know exactly what is wrong, and I want Ford to fix this problem before I am put in an unsafe situation. There were no warning signs other than the coolant under my vehicle, the vehicle heated up, and I had to add coolant. I was almost that victim with a catastrophic engine failure.
NHTSA ODI #11548056
121,000 miles · Sep 29, 2023
EnginePower Train
The contact owns a 2016 Ford Explorer. The contact stated that while at a complete stop, the vehicle was shifted into drive(D) and the brake pedal was released; however, the vehicle started shuddering and jerking significantly. Additionally, the contact stated that the vehicle hesitated to shift into the intended gear while dri…
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The contact owns a 2016 Ford Explorer. The contact stated that while at a complete stop, the vehicle was shifted into drive(D) and the brake pedal was released; however, the vehicle started shuddering and jerking significantly. Additionally, the contact stated that the vehicle hesitated to shift into the intended gear while driving. The contact stated that the failure had been recurring while driving. The check engine and the power train warning lights were illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The contact stated that the insurance company later informed her of Ford Campaign Number: 20B27, which she related to the failure. The dealer was notified of the failure. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under the Campaign. The manufacturer referred the contact to the NHTSA Hotline for assistance. The vehicle was not repaired. The failure mileage was approximately 121,000.
NHTSA ODI #11547318
90,000 miles · Sep 26, 2023
Engine
The contact owns a 2016 Ford Explorer. The contact stated while driving approximately 70 MPH, the temperature gauge indicated that the engine was overheating. The check engine warning light was illuminated. The vehicle was towed to the dealer who determined that the water pump had failed and needed to be replaced. The vehicle wa…
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The contact owns a 2016 Ford Explorer. The contact stated while driving approximately 70 MPH, the temperature gauge indicated that the engine was overheating. The check engine warning light was illuminated. The vehicle was towed to the dealer who determined that the water pump had failed and needed to be replaced. The vehicle was repaired. Approximately, a year and half later the failure reoccurred; however, the vehicle had not been repaired a second time. The manufacturer had not been made aware of the failure. The approximate failure mileage was 90,000.
NHTSA ODI #11546656
Official recalls
14Jul 14, 2026
Ford Motor Company (Ford) is recalling certain 2016-2019 Explorer vehicles. The roof rail covers may come loose and detach from the vehicle.
Consequence & remedy
Consequence: A detached roof rail cover can create a road hazard, increasing the risk of a crash.
Remedy: Dealers will inspect the roof rail covers and as necessary, repair or replace the push-pins, rail clips, or roof rail covers, free of charge. Interim letters, notifying owners of the safety risk, were mailed August 28, 2026. Additional letters will be sent once the remedy is available, anticipated in January 2027. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 26S54. This recall expands previous NHTSA recall number 21V316. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on July 16, 2026.
Oct 10, 2025
Ford Motor Company (Ford) is recalling certain 2016-2019 Lincoln MKC, 2016-2023 Explorer, 2019-2020 Fusion, 2019-2024 Ranger, 2020-2022 Lincoln Corsair, Escape, 2021-2024 Bronco, Bronco Sport, and 2022-2024 Maverick vehicles. The engine block heater may crack and develop a coolant leak, causing it to short circuit when the block heater is plugged in.
Consequence & remedy
Consequence: An electrical short circuit can increase the risk of a fire.
Remedy: Owners are advised not to plug in their block heater until the vehicle is remedied. Dealers will replace the block heater, free of charge. Owners will also have a alternative option to replace engine block heater element with a threaded blanking plug, and remove the block heater electrical cord. Interim letters, notifying owners of the safety risk, were mailed December 3, 2025. Additional letters will be sent once the final remedy is available, anticipated September 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25SA4. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on October 15, 2025.
May 23, 2025
Ford Motor Company (Ford) is recalling certain 2016-2017 Explorer vehicles. The driver and front passenger B-Pillar door trim may detach while driving.
Consequence & remedy
Consequence: Door trim that detaches while driving can create a road hazard, increasing the risk of a crash.
Remedy: Dealers will repair the B-pillar trim, free of charge. Interim letters, notifying owners of the safety risk, were mailed June 5, 2025. A second notice will be sent once the final remedy is available, anticipated November 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S53.
Jan 19, 2024
Ford Motor Company (Ford) is recalling certain 2011-2019 Explorer vehicles. The A-pillar trim retention clips may not be properly engaged, allowing the trim to detach.
Consequence & remedy
Consequence: A detached trim piece can fall off the vehicle, becoming a road hazard and increasing the risk of a crash.
Remedy: Dealers will inspect and replace the A-pillar trim as necessary, free of charge. This will be a phased campaign, with the remedy becoming available in different phases based on model years. Owner notification letters were mailed between July 18, 2024 and December 16, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 24S02.
Jul 15, 2021
Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or ever registered, in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin, and the District of Columbia. Exposure to road salt can cause the cross-axis ball joint to corrode and seize, resulting in a fracture of the outboard section of the rear suspension toe link.
Consequence & remedy
Consequence: A rear toe-link fracture can result in a loss of steering control, increasing the risk of a crash.
Remedy: Dealers will inspect and replace as necessary, the cross-axis ball joint (CABJ) knuckle, and replace the rear suspension toe links, free of charge. This recall is an expansion of previous NHTSA recall numbers 16V-245, 19V-435, and 20V-675. Certain vehicles previously repaired will need to return for the new remedy. An interim notification letter notifying owners of the safety risk were mailed on September 10, 2021. Owner notification letters were mailed on March 16, 2022. Owners may contact Ford's customer service at 1-866-436-7332. Ford's number for this recall is 21S32.
May 5, 2021
Ford Motor Company (Ford) is recalling certain 2016-2019 Explorer vehicles. The retention pins could loosen and allow the roof rail covers to detach from the vehicle.
Consequence & remedy
Consequence: A detached roof rail cover can create a road hazard, increasing the risk of a crash.
Remedy: Dealers will install push-pins and replace any damaged rail clips and roof rail covers, as necessary, free of charge. The interim owner notification letter was mailed on June 22, 2021. Owner notification letters (remedy available) were mailed on October 1, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21S22.
Mar 12, 2021
Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or currently registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin that were previously repaired under a prior recall numbers 16V-245 or 19V-435. The outboard section of a rear suspension toe link may fracture.
Consequence & remedy
Consequence: A rear toe link fracture can result in a loss of steering control, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will inspect the cross-axis ball joint (CABJ) knuckle attached to the rear suspension toe link and replace it as necessary, free of charge. The recall began November 27, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S62.
Nov 10, 2020
Ford Motor Company (Ford) is recalling certain 2014-2016 Explorer, 2014-2015 Taurus and 2014 Edge vehicles equipped with 2.0L or 2.3L engines and front wheel drive. The support bracket for the front drive axle halfshaft may fail.
Consequence & remedy
Consequence: The failed bracket could result in a loss of park function which can cause unintended vehicle movement, and loss of motive power while driving which increases the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the link shaft bracket, free of charge. Parts are not currently available. Owners received an interim notification detailing safety risk December 8, 2020. A second letter will be mailed when parts become available in January 2021. The recall began February 2, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S63.
Jun 10, 2019
Ford Motor Company (Ford) is recalling certain 2011-2017 Explorer vehicles. The rear suspension toe links may fracture due to stress on the rear suspension.
Consequence & remedy
Consequence: A fractured rear toe link will cause a sudden change in vehicle handling and increase the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the rear suspension toe links, and inspect both rear toe link ball joints, replacing the rear wheel knuckle(s), if necessary, free of charge. The recall began June 26, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S17.
Nov 29, 2017
Ford Motor Company (Ford) is recalling certain 2016 F-150 and Explorer vehicles. Loose power seat adjuster pivot bolts may cause the front seat cushions to detach and not properly restrain the seat occupant in the event of a crash.
Consequence & remedy
Consequence: In the event of a crash, a seat occupant that is not properly restrained has an increased risk of injury.
Remedy: Ford will notify owners, and dealers will inspect the tightness of the power seat track upper pivot link bolt, either applying threadlocker or replacing the lift link and hardware, free of charge. Interim letters are expected to go out January 15, 2018. Owners will receive a second notice when the remedy becomes available. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 17S40.
Jun 28, 2016
Ford Motor Company (Ford) is recalling certain model year 2016 Ford Explorer and F-150 vehicles equipped with a manual recline driver's seat. The seat back frame may have insufficient welds which may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202, "Head Restraints" and 207, "Seating Systems."
Consequence & remedy
Consequence: The seat back may not adequately restrain the occupant during a crash, increasing the risk of injury.
Remedy: Ford will notify owners, and dealers will inspect and, if necessary, replace the seat back frame, free of charge. The recall begin on August 18, 2016. Owners may contact Ford at 1-800-392-3673. Ford's number for this recall is 16C11.
Mar 31, 2016
Ford Motor Company (Ford) is recalling certain model year 2015-2016 Lincoln MKC vehicles manufactured November 25, 2013, to January 25, 2016, and 2016 Ford Explorer vehicles manufactured October 20, 2014, to January 28, 2016. The affected vehicles are equipped with 2.3L GTDI engines and engine block heaters. These engine block heaters have elements that may overheat while plugged in.
Consequence & remedy
Consequence: Overheating of the engine block increase the risk of a fire.
Remedy: Ford will notify owners, and dealers will replace the engine block heater, free of charge. Dealers will also inspect and replace the electrical cord, as necessary. The recall began on May 18, 2016. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S14. Note: Owners should not use the engine block heater until the vehicle has been remedied.
Sep 28, 2015
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Lincoln MKS, and 2016 Ford Explorer vehicles manufactured on July 24, 2015. During vehicle production, the fuel tank attachment bolts may not have been properly tightened. As a result, the fuel tank straps may fracture and the fuel tank could separate from the vehicle.
Consequence & remedy
Consequence: If the fuel tank separates from the vehicle, a fuel leak may occur, increasing the risk of a fire.
Remedy: Ford will notify owners, and dealers will tighten the fuel tank attachment bolts, as necessary, free of charge. The recall began on October 19, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15S26.
Jul 24, 2015
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Ford Flex, and Lincoln MKS vehicles manufactured May 4, 2015, to May 23, 2015, Lincoln MKT vehicles manufactured May 4, 2015, to May 21, 2015, and 2015-2016 Ford Explorer vehicles manufactured May 4, 2015, to May 23, 2015. The affected vehicles have a parking brake that may not fully engage when applied. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: If the parking brake does not fully engage and the transmission is left in a gear other than 'Park' while on a slope, the vehicle may roll away, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will test the operation of the parking brake system, and if necessary, replace the parking brake control assembly, free of charge. The recall began on September 4, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C07.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2PE23001 · Windshield Trim Molding Item Detachment
Opened Jan 27, 2023 · Closed Feb 8, 2024
Status: closed (inferred from source dates) · Structure:body:roof And Pillars
On January 27, 2023, the Office of Defects Investigation (ODI) opened PE23-001 to investigate allegations of A-pillar trim panel detachment on model year (MY) 2011-2019 Ford Explorer vehicles. At the time of opening, the office had received 164 Vehicle Owner Questionnaires (VOQs) reporting this failure. ODI has received 671 VOQs regarding this failure, including 1 alleged crash and 2 alleged injuries. Some consumers have reported that the failure occurred while they were driving at highway speeds, with the detached trim panel entering the path of travel of the vehicle behind them, requiring the driver of the following vehicle to take evasive action. It is noteworthy that motorists who experience this type of road hazard are less likely to accurately identify the subject vehicle the item detached from and report the event to the NHTSA. In its April 17, 2023 response to ODI’s information request, Ford provided 175 consumer complaints (including field reports) and 14,162 warranty claims related to A-pillar trim panel detachment. Ford relayed that the subject vehicles utilize a plastic A-pillar bracket, which is bolted to the vehicle structure during assembly. The A-pillar trim panel is attached to the bracket utilizing 7 plastic clips. Contributory factors which have been identified by Ford as leading to the subject defect include incomplete installation at the assembly plant, inadequate part stack up, damage to fasteners during installation, and failure to follow proper repair procedure during windshield replacements or other services. On January 19, 2024, Ford filed safety recall 24V-031 for MY 2011-2019 Ford Explorer vehicles to address the subject defect. In the Part 573 Safety Recall Report, Ford identified that a detached A-pillar trim panel can create a road hazard for other road users, increasing the risk of a crash. The recall remedy includes an inspection of the existing A-pillar trim panel and, if necessary, the replacement of the component. The remedy A-pillar trim panels will be installed with an additional adhesive for robustness and utilize an inspection procedure to ensure full engagement of all the retention clips during installation. In view of the recall action being taken by Ford, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
EA17002 · Exhaust Odor In Passenger Cab
Opened Jul 27, 2017 · Closed Jan 17, 2023
Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe; Structure:body
During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe
During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve
Structure:body
During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve
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