NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
17 reportsClear category filter80,000 miles · Jul 30, 2008
Power Train
TL*THE CONTACT OWNS A 2001 CHEVROLET S10. THE CONTACT NOTICED THAT THE ENGINE WARNING LIGHT WAS CONSTANTLY ILLUMINATED ON THE INSTRUMENT CONTROL PANEL. SHE TOOK HER VEHICLE TO THE DEALER AND THEY REPLACED THE FUEL FILTER. SEVERAL MONTHS LATER, THE ENGINE WARNING LIGHT ILLUMINATED AGAIN. THE CONTACT TOOK THE VEHICLE BACK TO T…
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TL*THE CONTACT OWNS A 2001 CHEVROLET S10. THE CONTACT NOTICED THAT THE ENGINE WARNING LIGHT WAS CONSTANTLY ILLUMINATED ON THE INSTRUMENT CONTROL PANEL. SHE TOOK HER VEHICLE TO THE DEALER AND THEY REPLACED THE FUEL FILTER. SEVERAL MONTHS LATER, THE ENGINE WARNING LIGHT ILLUMINATED AGAIN. THE CONTACT TOOK THE VEHICLE BACK TO THE DEALER AND WAS INFORMED THAT THE PCM NEEDED TO BE REPLACED. THE VEHICLE HAS NOT BEEN REPAIRED. THE MANUFACTURER STATED THAT THERE WAS NO RECALL FOR THE VEHICLE; THEREFORE, SHE WOULD HAVE TO ASSUME LIABILITY FOR THE REPAIR COST. THE FAILURE MILEAGE WAS 80,000 AND CURRENT MILEAGE WAS 146,000.
NHTSA ODI #10236401
30,000 miles · Aug 11, 2006
Power Train
NO SPECIAL EVENTS LEADING TO FAILURE. AT APPROXIMATELY 30000 MILES, THE 4X4 SHIFT ACTUATOR FAILED DURING EXTREME SNOW CONDITIONS, CAUSING VEHICLE TO BECOME STRANDED ON HIGHWAY. SHIFT ACTUATOR REPLACED WITH GENUINE GM PART AT DEALERSHIP. NOTE: PER DEALER, SHIFT ACTUATOR IS NOT COVERED BY EITHER GM WARRANTY OR THE EXTENDED WARRAN…
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NO SPECIAL EVENTS LEADING TO FAILURE. AT APPROXIMATELY 30000 MILES, THE 4X4 SHIFT ACTUATOR FAILED DURING EXTREME SNOW CONDITIONS, CAUSING VEHICLE TO BECOME STRANDED ON HIGHWAY. SHIFT ACTUATOR REPLACED WITH GENUINE GM PART AT DEALERSHIP. NOTE: PER DEALER, SHIFT ACTUATOR IS NOT COVERED BY EITHER GM WARRANTY OR THE EXTENDED WARRANTY ON DRIVETRAIN AND AXLE. IT WAS CALLED A "NORMAL WEAR" ITEM. GENERAL MOTORS HAS NOT RESPONDED TO EMAILS OR PHONE CALLS REGARDING THIS VEHICLE. *NM
NHTSA ODI #10165221
90,000 miles · Jun 16, 2006
Power Train
TRANSMISSION IN MY 2001 S10 CHEVROLET 4WD P/U FAILED AS I WAS DRIVING BEHIND A SCHOOL BUS...CHILDREN WERE LET OFF AND AS I TRIED TO ACCELERATE, THE TRANSMISSION FAILED WITHOUT WARNING AND THE VEHICLE BEHIND ME ALMOST HIT ME FROM BEHIND.. I PULLED OVER TO LET VEHICLES PASS AND PUT MYSELF IN A POSITION WHERE I HAD TO BACK UP FIRST…
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TRANSMISSION IN MY 2001 S10 CHEVROLET 4WD P/U FAILED AS I WAS DRIVING BEHIND A SCHOOL BUS...CHILDREN WERE LET OFF AND AS I TRIED TO ACCELERATE, THE TRANSMISSION FAILED WITHOUT WARNING AND THE VEHICLE BEHIND ME ALMOST HIT ME FROM BEHIND.. I PULLED OVER TO LET VEHICLES PASS AND PUT MYSELF IN A POSITION WHERE I HAD TO BACK UP FIRST TO GET BACK ON THE ROAD.. I PUT MY TRUCK IN REVERSE AND COULDN'T MOVE AT ALL.. I FOUND THAT I HAD 1ST AND THIRD GEAR BUT NO 2ND FOURTH OR REVERSE..THE TRANSMISSION HAD NO PRIOR SYMPTOMS OF ANYTHING BEING WRONG.. WHEN I TOOK THIS VEHICLE TO A DEALER...I EXPLAINED THE SITUATION AND THE MECHANIC KNEW EXACTLY WHAT HAD HAPPENED.. HE STATED THAT SUN SHELL HAD BROKE INSIDE THE TRANSMISSION..HE THEN SHOWED MY SEVERAL OTHER BROKEN SUN SHELLS HE HAD TO REPLACE IN OTHER VEHICLES AND HOW POORLY THEY WERE MANUFACTURED AND THAT GM HAD REPLACEMENT PARTS MADE OF A HIGHER STANDARD THAT WAS SUITABLE FOR THE APPLICATION...HE ESTIMATED THE REPAIR BILL TO BE APPROXIMATELY 1600 DOLLARS!!!HOPING THAT THERE WASN'T ANY OTHER DAMAGE TO DRIVING FURTHER WITH THIS BROKEN PART...MY QUESTION IS THIS...IF GM KNOWS THESE PARTS A FAULTY AND NOTIFIED THEIR MECHANICS TO REPLACE THEM WITH A PART THAT THEY KNOW WILL HOLD UP TO THE TASK, WHY SHOULD THE CONSUMER BE SUBJECT TO A 1600 DOLLAR OR BETTER REPAIR BILL, AND WHY ISN'T THERE A RECALL ON THIS??..THE MECHANIC STATED THAT HE WAS SURPRISED MINE LASTED AS LONG AS IT DID SAYING HE SAW THIS TRANSMISSION PART FAIL WITH AS LITTLE AS 35000 MILES ON THEM...I APPRECIATE ANY HELP ON THIS MATTER AS I YET HAVE TO DECIDE WHETHER TO HAVE THIS REPAIR DONE OR NOT..I AM REALLY SURPRISED AT A COMPANY SUCH AS GM WOULD KNOWINGLY SELL VEHICLES WITH INADEQUATE PARTS, AND HOPE THEY OUTLAST THEIR WARRANTIES SO THE CONSUMER WOULD BE STUCK PAYING THE BILL TO HAVE THEIR MECHANICS REBUILD THEIR FAULTY TRANSMISSIONS TO SATISFACTORY STANDARDS.....THANKS FOR YOUR TIME CONCERNING THIS MATTER............TOM. *JB
NHTSA ODI #10159974
78,100 miles · Feb 25, 2006
Power Train
FOR 2 WEEKS THE TRUCK FELT LIKE IT WAS HESITATING SOMEWHAT WHEN ACCELERATING. THEN WHEN DRIVING HOME ON DRY PAVEMENT ONE NIGHT, A POP SOUND WAS HEARD & SECOND GEAR WAS GONE. FROM A DEAD STOP, RPM'S GO UP TO 4000 OR 4500 BEFORE IT DOWN SHIFTS INTO 3RD GEAR. THERE IS ALSO NO REVERSE GEAR. CHEVY SAYS IT IS THE "SUN GEAR" THAT BLEW.…
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FOR 2 WEEKS THE TRUCK FELT LIKE IT WAS HESITATING SOMEWHAT WHEN ACCELERATING. THEN WHEN DRIVING HOME ON DRY PAVEMENT ONE NIGHT, A POP SOUND WAS HEARD & SECOND GEAR WAS GONE. FROM A DEAD STOP, RPM'S GO UP TO 4000 OR 4500 BEFORE IT DOWN SHIFTS INTO 3RD GEAR. THERE IS ALSO NO REVERSE GEAR. CHEVY SAYS IT IS THE "SUN GEAR" THAT BLEW. TRUCK HAS 78000 MILES ON IT. YOU EITHER REBUILD IT FOR $1600 WITH A NEW SUN GEAR, OR REPLACE THE TRANNY FOR $2600.
NHTSA ODI #10151189
40,975 miles · Dec 4, 2005
Power Train
DURING 41,000 SERVICE OBSERVED REAR PINION SEAL LEAKING, AFTER 3 ATTEMPTS TO GET THE CORRECT SEAL, FINALLY FOUND THE CORRECT ONE. PARTS STORES ONLY SHOW 3 DIFFERENT SEALS FOR A 2001 S-10 PICKUP W/ 4.3L ENGINE AND AUTOMATIC TRANSMISSION. HAD TO GO TO 2003 S-10 PICKUP TO FIND THE CORRECT SEAL. *NM
NHTSA ODI #10144408
Mileage unknown · Mar 2, 2005
Power TrainService Brakes, Hydraulic
HORRIBLE PROBLEM WITH THE SHIFTING OF TRANSMISSION. TRANSMISSION WAS REBUILT 6 MONTHS AGO DUE TO THE BURN OUT OF THE 2ND AND 3RD GEAR. SHIFTING HAS NOT CHANGED SINCE THE REBUILD. VEHICLE EASILY SLIPS OUT OF GEAR AND INCREASINGLY LOSES SPEED...NO MATTER IF THE GAS PEDAL IS TO THE FLOOR OR NOT. TRUCK WILL GO 65 MPH IN 2ND GEAR WIT…
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HORRIBLE PROBLEM WITH THE SHIFTING OF TRANSMISSION. TRANSMISSION WAS REBUILT 6 MONTHS AGO DUE TO THE BURN OUT OF THE 2ND AND 3RD GEAR. SHIFTING HAS NOT CHANGED SINCE THE REBUILD. VEHICLE EASILY SLIPS OUT OF GEAR AND INCREASINGLY LOSES SPEED...NO MATTER IF THE GAS PEDAL IS TO THE FLOOR OR NOT. TRUCK WILL GO 65 MPH IN 2ND GEAR WITH PEDAL TO THE FLOOR AND LOSE SPEED RAPIDLY STILL. SECOND, BRAKES LOCK UP GOING OVER SMALL BUMPS, AND THEN SEEM TO NOT WANT TO WORK PROPERLY ON OCCASION. LASTLY, TAILGATE CABLES HAVE SNAPPED AFTER I SAT ON THE TAILGATE (I'M 5'0" AND 100LBS!!). *AK
NHTSA ODI #10112415
92,000 miles · Feb 22, 2005
Electrical SystemEngine And Engine CoolingEquipment
2004 TAIL GATE ASS FAILED REPLACED AFTER MARKET PARTS 2004 BACK UP LIGHTS IN/OP;004 INTERRIOR LIGHT WILL NOT TURN OFF/ OVER RIDE BOTTON USED TO SAVE BATTERY2005 LEFT FRONT HUB ASS REPLACED. 004 RIGHT FRONT HUB ASS REPLACED;005 FRONT END REPLACED/PITTMAN/TIE RODS;2004 OIL FILTER LEAK / TIGHTENED 2004 REAR EMERGENCY BR…
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2004 TAIL GATE ASS FAILED REPLACED AFTER MARKET PARTS 2004 BACK UP LIGHTS IN/OP;004 INTERRIOR LIGHT WILL NOT TURN OFF/ OVER RIDE BOTTON USED TO SAVE BATTERY2005 LEFT FRONT HUB ASS REPLACED. 004 RIGHT FRONT HUB ASS REPLACED;005 FRONT END REPLACED/PITTMAN/TIE RODS;2004 OIL FILTER LEAK / TIGHTENED 2004 REAR EMERGENCY BRAKES IN/OP 5 LEFT EMERGENCY BRAKE DRUM REPLACED;005 RIGHT EMERGENCY BRAKE DRUM REPLACED 2005 GAS SENDING UNIT REPLACED ERADIC BEHAVIOR 2004 LEFT BRAKE SHOE REPLACED ;004 RIGHT BRAKE SHOE REPLACED;005 LEFT BRAKE SHOE REPLACED FRONT;005 RIGHT BRAKE SHOE REPLACED FRONT 2005 LEFT BRAKE SHOE REPLACED REAR;005 RIGHT BRAKE SHOE REPLACED REAR;005 U JOINTS REPLACED;04 BATTERY REPLACED 2005 TRANSMISSION SHOWING SIGNS OF WEAR;005 REAR END {3.42} LOCKER CLANGS BETWEEN 1ST AND REVVED. 004 4 TIRES 005 4 TIRES 2004 DOOR HINGES FREEZE UP LUBE;005 TAIL GATE HINGES SHOW WEAR 2005 PARTS 4 EA TIE RODS/O/RING TYPE BRAKE SHOESAND DRUMS/U JOINTS. I HAVE FOR INSPECTION.*AK
NHTSA ODI #10111922
25,000 miles · Aug 27, 2004
Power Train
WHEN TURNING THE FRONT MADE A LOUD POPPING NOISE. CONSUMER FELT THE NOISE WAS COMING FROM THE DRIVETRAIN, AND COULD RESULT IN THE DRIVETRAIN BREAKING AT ANY TIME. DEALERSHIP WILL BE CONTACTED. *AK
NHTSA ODI #10089886
Mileage unknown · Oct 28, 2003
Engine And Engine CoolingFuel System, GasolineFuel System, Other
CONSUMER STATED THAT VEHICLE IN THE LAST 3 MONTHS IN REPAIR SHOP FOR TRANSMISSION PROBLEMS 9 TIMES. AFTER BRINGING VEHICLE TO REPAIR SHOP SHOP EVERYTHING ELSE STARTED TO BREAK DOWN. ALSO, FUEL PUMP WAS REPLACED 3 TIMES. FUEL GAUGE OPERATED POORLY, AND VEHICLE DIED/STOPPED WHILE DRIVING ON THE ROAD. *AK
NHTSA ODI #10044911
23,000 miles · Jan 22, 2003
Power TrainSteering
BALL JOINTS ARE LOOSE WHEN INSTALLED. REPORTED BY DEALER TO BE WITHIN CHEVY SPECS. THE SAME PROBLEM WITH THE TIE ROD ENDS. CANT KEEP THE ALIGNMENT RIGHT WITH THIS SPEC. DEALER WILL NOT WARRANTY.
NHTSA ODI #10003230
NHTSA investigations
3EA05008 · Tailgate Support Cables
Opened Apr 14, 2005 · Closed May 19, 2006
Status: closed (inferred from source dates) · Latches/locks/linkages:tailgate:latch
GENERAL MOTORS IS CONDUCTING A SPECIAL POLICY PROGRAM FOR 903,464 OWNERS OF 2000 - 2003 MODEL S/T VEHICLES THROUGH WHICH OWNERS MAY, AT THEIR OPTION, EITHER (1) PERIODICALLY INSPECT THE TAILGATE SUPPORT CABLES INSTALLED IN THEIR VEHICLE AND HAVE THE CABLES REPLACED IF THE CABLE COATING EXHIBITS ANY INDICATIONS OF DAMAGE OR DETERIORATION OR (2) REQUEST THAT THE TAILGATE SUPPORT CABLES BE REPLACED FREE OF CHARGE. GM WILL HONOR ALL REQUESTS BY OWNERS WHO OPT FOR REPLACEMENT WITHOUT QUESTION REGARDLESS OF THE CONDITION OR APPEARANCE OF THE CABLES. GM HAS AGREED TO MAIL REMINDER NOTIFICATIONS TO OWNERS EVERY TWO YEARS UNTIL THE TAILGATE SUPPORT CABLES HAVE BEEN REPLACED OR UNTIL THE VEHICLE IS 12 YEARS OLD.ODI'S INVESTIGATION INDICATES THAT A SIGNIFICANT MAJORITY OF THE REPORTED COMPLAINTS (87%) AND INJURIES (94%) HAVE OCCURRED IN MY 2000 - 2003 S/T VEHICLES.
RQ04012 · Tailgate Support Cable(s) Break
Opened Nov 22, 2004 · Closed Apr 14, 2005
Status: closed (inferred from source dates) · Structure:body:hatchback/liftgate:support Device/strut
ODI IS UPGRADING RQ04-012 AND OPENING AN EA TO INVESTIGATE THE TAILGATE SUPPORT CABLES INSTALLED IN 1998 - 2004 MODEL YEAR SONOMA AND S10 MODEL VEHICLES.GENERAL MOTORS IS CONDUCTING RECALL CAMPAIGN 04V-129 TO REPLACE THE TAILGATE SUPPORT CABLES ORIGINALLY INSTALLED IN CERTAIN MODEL YEAR 2000-2004 SIERRAS AND SILVERADOS AND CERTAIN MODEL YEAR 2002-2004 AVALANCHES AND ESCALADE EXTS (C/K MODELS).GENERAL MOTORS HAS ADVISED ODITHAT THE TAILGATE SUPPORT CABLES INSTALLED IN THE SUBJECT VEHICLES WERE FABRICATED USING IDENTICAL OR SIMILAR SHEATHING MATERIAL AS THE RECALLED VEHICLES.HOWEVER,GENERAL MOTORS HAS ADVISED ODI THAT SONOMA AND S-10 VEHICLES DIFFER FROM C/K MODELS IN SEVERAL WAYS: THE VEHICLE HEIGHT IS LOWER; THE TAILGATE DISPLACEMENT (DROP) WHEN NOT SUPPORTED BY THE CABLES IS SMALLER AND THE TAILGATE COMES TO REST AT A LESS SEVERE TIP ANGLE WHEN NOT SUPPORTED BY THE CABLES; THE TAILGATE MASS IS SMALLER; AND THE SIZE, PAYLOAD, AND USAGE CHARACTERISTCIS ARE LESS DEMANDING THAN C/K MODEL VEHICLES.GM ALSO STATED THAT SONOMA AND S-10 WARRANTY CLAIM INFORMATION INDICATES A LOWER CLAIM COUNT AND A LOWER CLAIM RATE THAN RECALLED C/K MODELS.NOTWITHSTANDING THE ABOVE INFORMATION, ODI HAS RECEIVED AN ADDITIONAL 73 NON-INJURY COMPLAINTS AND 10 INJURY COMPLAINTS ON THE SUBJECT VEHICLES DURING RQ04-012 (SINCE NOVEMBER 2004 TO DATE), WHICH JUSTIFIES OPENING AN ENGINEERING ANALYSIS TO FURTHER INVESTIGATE THIS ISSUE.
PE02066 · Engine Stall Due To Fuel Starvation
Opened Sep 6, 2002 · Closed Nov 3, 2003
Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Gasoline:delivery:fuel Pump; Fuel System, Other; Fuel System, Other:delivery:fuel Pump
ODI OPENED PE02-066 TO EVALUATE THE SCOPE AND CONSEQUENCE OF ENGINE POWER-LOSS DUE TO FUEL STARVATION INDUCED BY IN-TANK MODULAR FUEL PUMP STRAINER RESTRICTION.THE SUBJECT PUMPS USE AN EXTERNAL ?SOCK? STRAINER TO FILTER FUEL FLOWING TO THE PUMP INLET.THIS FILTER CAN SOMETIMES BECOME CLOGGED, RESULTING IN A REDUCED FLOW OF FUEL TO THE ENGINE.GM HAS SUBSEQUENTLY MODIFIED THE STRAINERS TO REDUCE THIS RESTRICTION.ANALYSIS OF THE ODI COMPLAINT DATABASE SHOWS THAT DESPITE THESE RESTRICTIONS, THE SUBJECT VEHICLES STALL AT A RATE THAT IS COMPARABLE TO THOSE OF MANY PEER VEHICLES.ADDITIONALLY, NONE OF THE RELEVANT WARRANTY REPAIR RATES EXCEED 1% AT 36 MONTHS OF EXPOSURE.ONE RELATED CRASH INVOLVES A STALLED VEHICLE THAT WAS REAR-ENDED ON THE ROADWAY, WHILE THE REMAINDER INVOLVED MINOR COLLISIONS OR SCRAPES.THE SOLE INJURY CONSISTED OF BRUISING FROM A LOW SPEED FRONTAL CRASH. GIVEN THESE CIRCUMSTANCES, FURTHER EXPENDITURE OF AGENCY RESOURCES IS NOT JUSTIFIED IN THIS MATTER.THE PRELIMINARY EVALUATION IS THEREFORE CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY WILL TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
Additional source detail variants (4)
Fuel System, Gasoline:delivery:fuel Pump
ODI OPENED PE02-066 TO EVALUATE THE SCOPE AND CONSEQUENCE OF ENGINE POWER-LOSS DUE TO FUEL STARVATION INDUCED BY IN-TANK MODULAR FUEL PUMP STRAINER RESTRICTION.THE SUBJECT PUMPS USE AN EXTERNAL ?SOCK? STRAINER TO FILTER FUEL FLOWING TO THE PUMP INLET.THIS FILTER CAN SOMETIMES BECOME CLOGGED, RESULTING IN A REDUCED FLOW OF FUEL TO THE ENGINE.GM HAS SUBSEQUENTLY MODIFIED THE STRAINERS TO REDUCE THIS RESTRICTION.ANALYSIS OF THE ODI COMPLAINT DATABASE SHOWS THAT DESPITE THESE RESTRICTIONS, THE SUBJECT VEHICLES STALL AT A RATE THAT IS COMPARABLE TO THOSE OF MANY PEER VEHICLES.ADDITIONALLY, NONE OF THE RELEVANT WARRANTY REPAIR RATES EXCEED 1% AT 36 MONTHS OF EXPOSURE.ONE RELATED CRASH INVOLVES A STALLED VEHICLE THAT WAS REAR-ENDED ON THE ROADWAY, WHILE THE REMAINDER INVOLVED MINOR COLLISIONS OR SCRAPES.THE SOLE INJURY CONSISTED OF BRUISING FROM A LOW SPEED FRONTAL CRASH. GIVEN THESE CIRCUMSTANCES, FURTHER EXPENDITURE OF AGENCY RESOURCES IS NOT JUSTIFIED IN THIS MATTER.THE PRELIMINARY EVALUATION IS THEREFORE CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY WILL TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
Fuel System, Gasoline
ODI OPENED PE02-066 TO EVALUATE THE SCOPE AND CONSEQUENCE OF ENGINE POWER-LOSS DUE TO FUEL STARVATION INDUCED BY IN-TANK MODULAR FUEL PUMP STRAINER RESTRICTION.THE SUBJECT PUMPS USE AN EXTERNAL ?SOCK? STRAINER TO FILTER FUEL FLOWING TO THE PUMP INLET.THIS FILTER CAN SOMETIMES BECOME CLOGGED, RESULTING IN A REDUCED FLOW OF FUEL TO THE ENGINE.GM HAS SUBSEQUENTLY MODIFIED THE STRAINERS TO REDUCE THIS RESTRICTION.ANALYSIS OF THE ODI COMPLAINT DATABASE SHOWS THAT DESPITE THESE RESTRICTIONS, THE SUBJECT VEHICLES STALL AT A RATE THAT IS COMPARABLE TO THOSE OF MANY PEER VEHICLES.ADDITIONALLY, NONE OF THE RELEVANT WARRANTY REPAIR RATES EXCEED 1% AT 36 MONTHS OF EXPOSURE.ONE RELATED CRASH INVOLVES A STALLED VEHICLE THAT WAS REAR-ENDED ON THE ROADWAY, WHILE THE REMAINDER INVOLVED MINOR COLLISIONS OR SCRAPES.THE SOLE INJURY CONSISTED OF BRUISING FROM A LOW SPEED FRONTAL CRASH. GIVEN THESE CIRCUMSTANCES, FURTHER EXPENDITURE OF AGENCY RESOURCES IS NOT JUSTIFIED IN THIS MATTER.THE PRELIMINARY EVALUATION IS THEREFORE CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY WILL TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
Fuel System, Other:delivery:fuel Pump
ODI OPENED PE02-066 TO EVALUATE THE SCOPE AND CONSEQUENCE OF ENGINE POWER-LOSS DUE TO FUEL STARVATION INDUCED BY IN-TANK MODULAR FUEL PUMP STRAINER RESTRICTION.THE SUBJECT PUMPS USE AN EXTERNAL ?SOCK? STRAINER TO FILTER FUEL FLOWING TO THE PUMP INLET.THIS FILTER CAN SOMETIMES BECOME CLOGGED, RESULTING IN A REDUCED FLOW OF FUEL TO THE ENGINE.GM HAS SUBSEQUENTLY MODIFIED THE STRAINERS TO REDUCE THIS RESTRICTION.ANALYSIS OF THE ODI COMPLAINT DATABASE SHOWS THAT DESPITE THESE RESTRICTIONS, THE SUBJECT VEHICLES STALL AT A RATE THAT IS COMPARABLE TO THOSE OF MANY PEER VEHICLES.ADDITIONALLY, NONE OF THE RELEVANT WARRANTY REPAIR RATES EXCEED 1% AT 36 MONTHS OF EXPOSURE.ONE RELATED CRASH INVOLVES A STALLED VEHICLE THAT WAS REAR-ENDED ON THE ROADWAY, WHILE THE REMAINDER INVOLVED MINOR COLLISIONS OR SCRAPES.THE SOLE INJURY CONSISTED OF BRUISING FROM A LOW SPEED FRONTAL CRASH. GIVEN THESE CIRCUMSTANCES, FURTHER EXPENDITURE OF AGENCY RESOURCES IS NOT JUSTIFIED IN THIS MATTER.THE PRELIMINARY EVALUATION IS THEREFORE CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY WILL TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
Fuel System, Other
ODI OPENED PE02-066 TO EVALUATE THE SCOPE AND CONSEQUENCE OF ENGINE POWER-LOSS DUE TO FUEL STARVATION INDUCED BY IN-TANK MODULAR FUEL PUMP STRAINER RESTRICTION.THE SUBJECT PUMPS USE AN EXTERNAL ?SOCK? STRAINER TO FILTER FUEL FLOWING TO THE PUMP INLET.THIS FILTER CAN SOMETIMES BECOME CLOGGED, RESULTING IN A REDUCED FLOW OF FUEL TO THE ENGINE.GM HAS SUBSEQUENTLY MODIFIED THE STRAINERS TO REDUCE THIS RESTRICTION.ANALYSIS OF THE ODI COMPLAINT DATABASE SHOWS THAT DESPITE THESE RESTRICTIONS, THE SUBJECT VEHICLES STALL AT A RATE THAT IS COMPARABLE TO THOSE OF MANY PEER VEHICLES.ADDITIONALLY, NONE OF THE RELEVANT WARRANTY REPAIR RATES EXCEED 1% AT 36 MONTHS OF EXPOSURE.ONE RELATED CRASH INVOLVES A STALLED VEHICLE THAT WAS REAR-ENDED ON THE ROADWAY, WHILE THE REMAINDER INVOLVED MINOR COLLISIONS OR SCRAPES.THE SOLE INJURY CONSISTED OF BRUISING FROM A LOW SPEED FRONTAL CRASH. GIVEN THESE CIRCUMSTANCES, FURTHER EXPENDITURE OF AGENCY RESOURCES IS NOT JUSTIFIED IN THIS MATTER.THE PRELIMINARY EVALUATION IS THEREFORE CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY WILL TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
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