IllustrationEVERY 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
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 →How this year compares
Owner complaints by model year
Compare all Wrangler years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
100–25K
2225–50K
3250–75K
1775–100K
19100–150K
8150K+
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
What owners actually said
213 reportsMANIFOLD CRACKING ON 1999 JEEP WRANGLER, CAUSING ROUGH RUNNING CONDITION AND FUMES INSIDE CABIN.*AK
AT 41,000 MILES ACCELERATOR PEDAL DESCENDED MORE OFTEN THAN NECESSARY WHEN IT WAS DEPRESSED WHILE DRIVING. THIS CAUSED TACHOMETER TO RISE BETWEEN 1500-2000 RPMS.*AK
WHILE DRIVING 65 MPH DASHBOARD INDICATOR LIGHT ILLUMINATED. ALSO, AIR BAG INDICATOR LIGHT CAME ON ALONG WITH OTHER INDICATOR LIGHTS FOLLOWED BY THE VEHICLE SHUTTING OFF. AFTER THE VEHICLE WAS SERVICED, TECHNICIAN DETERMINED THAT DASH CLUSTER CAME APART.*AK
CONSUMER BEGAN SMELLED SOMETHING BURNING. HEATER CONTROL KNOB MELTED. HEATER MOTOR STARTED TO COME ON AND OFF ON ITS OWN. *AK
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.
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
I LOVE MY 1999 JEEP WRANGLER AND HAVE BEEN VERY HAPPY TILL NOW. MY HUSBAND AND I HAVE OWNED MANY NEW CARS OVER THE YEARS AND THIS IS THE FIRST TIME EITHER ONE HAVE HEARD OF AN EXHAUST MANIFOLD GOING BAD. WHEN HAVING THE MANIFOLD REPLACED WE WERE TOLD IT HAS BEEN REDESIGNED AND IS DIFFERENT THAN THE ONE REPLACED. IT HAD CRACKED …
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I LOVE MY 1999 JEEP WRANGLER AND HAVE BEEN VERY HAPPY TILL NOW. MY HUSBAND AND I HAVE OWNED MANY NEW CARS OVER THE YEARS AND THIS IS THE FIRST TIME EITHER ONE HAVE HEARD OF AN EXHAUST MANIFOLD GOING BAD. WHEN HAVING THE MANIFOLD REPLACED WE WERE TOLD IT HAS BEEN REDESIGNED AND IS DIFFERENT THAN THE ONE REPLACED. IT HAD CRACKED IN SEVERAL PLACES, MAINLY AT THE WELDS. I FILL SINCE I NEVER TAKE IT OFF ROAD THAT THIS SHOULD NOT OF HAPPEN. NOT TO MENTION IT WAS VERY COSTLY. I FILL SINCE THIS IS A MANUFACTURER PROBLEM I SHOULD BE REVERSED FOR SOMETHING LIKE THIS. *JB
DEFROSTER/HEATER BLOWER MOTOR AND SWITCH QUIT. REPLACED AT LEAST ONCE BEFORE, WITHIN A YEAR & A HALF. FIRST, ONLY ONE SPEED ON THE FAN WORKS THEN NOTHING.
MY 1999 JEEP WRANGLER IS DOING EXACTLY WHAT THE RECALL SAYS, BUT FOR SOME REASON MY VIN IS NOT IN THE RECALL SYSTEM AS PER THE JEEP DEALER! PLEASE HELP... THIS IS NOT FAIR THAT THE RECALL IS NOT ON MY JEEP WHEN IT'S DOING EXACTLY WHAT THE RECALL SAYS! THANKS. *AK
Official recalls
199V117000 · 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
1RQ99011 · 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