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1999 Jeep Wrangler

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 1999 Jeep Wrangler do not stand out strongly from the model-year median of 265.

About this comparison →

When problems were reported

Mileage at the reported incident

108 reports with mileage · 105 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 50 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

15 crash reports6 fire reports9 injury reports

Engine And Engine Cooling complaints

50 reports
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67,000 miles · Jan 19, 2005
Engine And Engine CoolingVehicle Speed ControlCrash

SUDDEN ACCELERATION OCCURRED WHILE IDLING IN TRAFFIC WHILE THE BRAKES WERE BEING APPLIED. THIS CAUSED THE VEHICLE TO RUN IN BACK OF A TRUCK. NO INJURIES REPORTED. DEALER WAS NOTIFIED. *AK THE CONSUMER STATED THAT THE DEALER DOWNLOADED SOFTWARE TO POWER TRAIN COMPUTER FROM THE 1998 SERVICE BULLETIN. THE BULLETIN STATED THAT…

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SUDDEN ACCELERATION OCCURRED WHILE IDLING IN TRAFFIC WHILE THE BRAKES WERE BEING APPLIED. THIS CAUSED THE VEHICLE TO RUN IN BACK OF A TRUCK. NO INJURIES REPORTED. DEALER WAS NOTIFIED. *AK THE CONSUMER STATED THAT THE DEALER DOWNLOADED SOFTWARE TO POWER TRAIN COMPUTER FROM THE 1998 SERVICE BULLETIN. THE BULLETIN STATED THAT WHEN THE TEMPERATURE ROSE TO 103 CELSIUS IT COULD CAUSE HIGH RPM IN PARKING LOT MANEUVERS OR STOP AND GO TRAFFIC. THE CONSUMER STATED THAT THIS SHOULD HAVE BEEN DONE TO ALL 99 MODELS. THE CONSUMER SOLD THE VEHICLE. *TC *SC

NHTSA ODI #10101296

39,000 miles · Jan 12, 2005
Engine And Engine Cooling

EXPERIANCED HEADACHES, NAUSEA, AS WELL AS AUDIBLE KNOCKING FROM UNDER HOOD. MY 1999 4.0 LITER 6 CYLINDER WAS FOUND TO HAVE BROKEN EXHAUST MANIFOLD, LEAKING HOT GASSES AND EXHAUST INTO ENGINE COMPARTMENT AND PASSENGER COMPARTMENT. DEALERSHIP AWARE THAT THERE IS PROBLEM WITH MANIFOLD, AS HAVE REDESIGNED IT AND REPLACEMENT COST I…

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EXPERIANCED HEADACHES, NAUSEA, AS WELL AS AUDIBLE KNOCKING FROM UNDER HOOD. MY 1999 4.0 LITER 6 CYLINDER WAS FOUND TO HAVE BROKEN EXHAUST MANIFOLD, LEAKING HOT GASSES AND EXHAUST INTO ENGINE COMPARTMENT AND PASSENGER COMPARTMENT. DEALERSHIP AWARE THAT THERE IS PROBLEM WITH MANIFOLD, AS HAVE REDESIGNED IT AND REPLACEMENT COST IN EXCESS OF $500.00 CONTACTED CHRYSLER AND FILED COMPLAINT, TOLD THEY AREA AWARE OF PROBLEM, BUT WILL NOT STAND BEHIND IT OR ISSUE RECALL. LOCAL EXHAUST SHOP ADVISED THEY DO SEVERAL PER MONTH WITH THIS DEFECTIVE EXHAUST MANIFOLD, BOTH WRANGLER AND CHEROKEE BETWEEN 1996 AND 2000 MODEL YEAR. EXHAUST WAS REVISED IN 2000 BECAUSE OF PROBLEMS, BUT CHRYSLER WILL NOT STAND BEHIND PRODUCT DENYING THE PROBLEM IS A DEFECT. CHYRSLER SHOULD WARRANTY THIS PROBLEM AS THEY DID WITH THE 2.5 LITER. MILAGE AT TIME WAS ONLY 39,000 WHEN CRACKED.*AK

NHTSA ODI #10106225

54,625 miles · Nov 30, 2004
Engine And Engine Cooling

1)THE VEHICLE FAILED THE ANNUAL INSPECTION - AND I WAS ADVISED THE REASON WAS "EXHAUST MANIFOLD". 2)I CALLED THE DEALER - WHO THOUGHT MY VEHICLE WAS A "2.5" WHICH ALREADY HAS A RECALL ON THE EXHAUST MANIFOLD, BUT I HAVE A "4.0" WHICH CURRENTLY DOES NOT. I ASKED WHAT HARM IS BEING DONE IF I DO NOT GET IT FIXED - AND WAS ADVISED…

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1)THE VEHICLE FAILED THE ANNUAL INSPECTION - AND I WAS ADVISED THE REASON WAS "EXHAUST MANIFOLD". 2)I CALLED THE DEALER - WHO THOUGHT MY VEHICLE WAS A "2.5" WHICH ALREADY HAS A RECALL ON THE EXHAUST MANIFOLD, BUT I HAVE A "4.0" WHICH CURRENTLY DOES NOT. I ASKED WHAT HARM IS BEING DONE IF I DO NOT GET IT FIXED - AND WAS ADVISED THAT SINCE THERE IS A HOLE IN THE EXHAUST MANIFOLD, EXHAUST FUMES ARE FILLING THE CAB (LIKE THE 2.5). I WAS AT THAT TIME ADVISED THAT THERE IS NO RECALL ON THIS PART. AS IT WAS EXPLAINED TO ME, THE PART ON THE 2.5 IS A BOLT THAT ATTACHES TO THE MOTOR, AND WHEN IT BREAKS, LEAKS EXHAUST INTO THE CAB; AND ON THE 4.0 (WHICH I BELIEVE IS ALSO A COMMON PROBLEM), THAT THERE IS A BREAK IN THE BASE OF THE "Y" PIPE, WHICH ALSO LEAKS EXHAUST INTO THE CAB. I CALLED THE MANUFACTURER CUSTOMER LINE 800.992.1997, I ADVISED THAT I WAS AWARE THAT THIS WAS A SERIOUS PROBLEM, AND THAT THERE IS ALREADY A RECALL ON A SIMILAR MODEL; I WAS TOLD THAT ALL THEY COULD DO WAS "REGISTER THE COMPLAINT". I ASKED "HOW DOES ONE GO ABOUT A RECALL PROCESS" AND WAS TOLD IT WAS INVOLVED AND COMPLICATED, AND I WAS DIRECTED TO THIS SITE AFTER PRESSING FOR SATISFACTION. I THEN ASKED "HOW MANY PEOPLE HAVE TO DIE BEFORE YOU RECALL THIS PART?", AND THE REP ON THE OTHER END OF THE LINE GIGGLED. I WENT ON TO ASK THAT IF THERE WAS A RECALL ON THIS PART WOULD I BE REIMBURSED FOR MY EXPENDITURE, AND I WAS ADVISED THAT "YES", I WOULD BE REIMBURSED FOR HAVING TO PAY FOR THIS REPAIR. 3)BECAUSE IT IS A DANGEROUS CONDITION, I AM HAVING THE EXHAUST MANIFOLD REPLACED. I CAN MAKE IT AVAILABLE FOR INSPECTION. *AK

NHTSA ODI #10100792

Mileage unknown · Jul 26, 2004
Air BagsEngine And Engine CoolingVehicle Speed Control

WHILE DRIVING AT ANY SPEED AIR BAG LIGHT AND CHECK ENGINE LIGHT APPEARED ON THE DASHBOARD . THIS CAUSED THE SPEEDOMETER TO FAIL. CONSUMER WAS ABLE TO MAINTAIN CONTROL OF THE VEHICLE, AND DROVE IT HOME. CONSUMER WILL CONTACT THE DEALER IN THE NEAR FUTURE. *AK *LA

NHTSA ODI #10079825

50,000 miles · Apr 15, 2004
Engine And Engine Cooling

A POPPING NOISE FROM THE EXHAUST MANIFOLD WAS HEARD WHEN CONSUMER REMOVED FOOT FROM GAS PEDAL. DURING A STATE INSPECTION THE STATE INSPECTOR NOTICED A LEAK IN THE EXHAUST MANIFOLD. CONSUMER TOOK VEHICLE TO A DEALERSHIP, WHO INDICATED THIS WAS A COMMON PROBLEM WITH VEHICLES WITH A 4.0 LITER ENGINE. *AK

NHTSA ODI #10067205

Mileage unknown · Apr 1, 2004
Engine And Engine Cooling

CONSUMER EXPERIENCED HEADACHES AND DIZZINESS FOR MONTHS DUE TO AN EXHAUST LEAK. *PH THE PROBLEM WAS DISCOVERED TO BE A CRACKED MANIFOLD. THE CONSUMER REQUESTED ASSISTANCE, BUT WAS TOLD ONLY THE 4 CYLINDER WAS BEING COVERED UNDER WARRANTY. *JB

NHTSA ODI #10066817

50,000 miles · Apr 1, 2004
Engine And Engine Cooling

EVERY MANIFOLD IN JEEP WRANGLERS ARE FAULTY AND CRACK LEAVING THE CABINS OF WRANGLERS FILLING WITH CARBON MONOXIDE. THIS IS A WELL KNOWN ISSUES WITH JEEP WRANGLERS WHERE THE MANIFOLD IS MADE WITH IRON THAT DOES NOT EXPAND AND THE WELSING IS SUB PAR ALLOWING FOR CRACKS WHICH LEAK CARBON MONOXIDE.*AK

NHTSA ODI #10064322

58,000 miles · Apr 1, 2004
Engine And Engine Cooling

MANIFOLD CRACKING ON 1999 JEEP WRANGLER, CAUSING ROUGH RUNNING CONDITION AND FUMES INSIDE CABIN.*AK

NHTSA ODI #10064316

61,935 miles · Mar 4, 2004
Engine And Engine Cooling

ON FEBRUARY 4, 2004 I TOOK MY 1999 JEEP WRANGLER TO BOB MAYBERRY CHRYSLER DODGE, JEEP, INC. IT WAS VERY NOISY AND MORE GASOLINE THAN USUAL. THEY SAID THAT MY EXHAUST MANIFOLD WAS BROKEN AND THAT THIS WAS A VERY COMMON PROBLEM IN THESE VEHICLES. MILEAGE AT THAT TIME WAS 61,935. THE WARRANTY FOR THAT YEAR WAS ONLY 3 YEARS 36 MO…

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ON FEBRUARY 4, 2004 I TOOK MY 1999 JEEP WRANGLER TO BOB MAYBERRY CHRYSLER DODGE, JEEP, INC. IT WAS VERY NOISY AND MORE GASOLINE THAN USUAL. THEY SAID THAT MY EXHAUST MANIFOLD WAS BROKEN AND THAT THIS WAS A VERY COMMON PROBLEM IN THESE VEHICLES. MILEAGE AT THAT TIME WAS 61,935. THE WARRANTY FOR THAT YEAR WAS ONLY 3 YEARS 36 MONTHS I WAS TOLD. THIS REPAIR WAS NEARLY $700.00 AND IS SOMETHNG THAT I HAVE NEVER HAD GO WRONG ON ANY OTHER CAR I EVER HAD. THIS WAS SOMETHING THAT THE COMPANY HAS KNOWN ABOUT FOR SOME TIME NOW, AND REFUSED TO RECALL THE POORLY DESIGNED AND POORLY CONSTRUCTED EXHAUST MANIFOLDS. I WOULD LIKE TO SEE YOU FORCE THEM TO FIX THESE PROBLEMS AND RETURN ALL OR PART OF MY SERVICE BILL. MY VIN IS 1J4FY9S7XP414936. WHEN I CALLED THE DAIMLER CHRYSLER CUSTOMER SERVICE NUMBER, I WAS TOLD THAT THIS WAS JUST TOO BAD, BUT THERE WAS NOTHING THAT THEY WERE GOING TO DO ABOUT IT.

NHTSA ODI #10060458

80,000 miles · Feb 27, 2004
Engine And Engine Cooling

I HAVE REPLACED THE EXHUAST MANIFOLD TWICE BECAUSE IT HAS CRACKED ABOVE THE Y CONNECTOR AT THE PIPE.NOW I WILL GO WITH A BORLLA EXHUAST UNIT TO SEE IF THIS MANUFACTURER DEFECT CAN BE CORRECTED. WHICH I BELIEVE TO BE A DEFECT IN THE MOTOR MOUNTS THAT ARE TOO WEEK AND ALLOWS THE MOTOR TO LIFT TOO FAR AND STRESS THE PIPE.*AK

NHTSA ODI #10059939

Official recalls

1

99V117000 · Unknown Or Other

May 6, 1999

VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES. THE LEFT SIDE AND RIGHT SIDE INSTRUMENT PANEL WIRING GROUND ATTACHMENT SCREWS COULD LOOSEN OVER TIME.

Consequence & remedy

Consequence: IF THE LEFT SIDE SCREW LOOSENS, THE INSTRUMENT PANEL GAUGES MAY NOT FUNCTION WHEN THE HEADLAMPS ARE TURNED ON. IF THE RIGHT SIDE SCREW LOOSENS, THE DEFROSTER BLOWER MOTOR MAY NOT FUNCTION.

Remedy: DEALERS WILL REMOVE THE GROUND SCREWS, DRILL A NEW PILOT HOLE ADJACENT TO THE ORIGINAL HOLE, AND THE SCREWS WILL BE REINSTALLED IN THE NEW HOLES.

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

1

RQ99011 · Instrument Panel Ground Screw

Opened Jun 1, 1999 · Closed May 30, 2000

Status: closed (inferred from source dates) · Electrical System

THE INSTRUMENT PANEL WIRING GROUND ATTACHMENT SCREWS CAN LOOSEN

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