NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
109 reportsClear category filterMileage unknown · Jul 15, 2008
Engine And Engine Cooling
1997 JEEP WRANGLER EXHAUST MANIFOLD. CONSISTENT DECREASE IN POWER, STUMBLING, AND POOR GAS MILEAGE. AFTER A WRECK I NOTICED THE MANIFOLD WAS CRACKED. BOTH THE INSURANCE COMPANY AND THE AUTHORIZED JEEP DEALERSHIP TOLD ME IT WAS NOT DUE TO THE WRECK BUT DUE TO FACT IT WAS A COMMON WRANGLER PROBLEM, AND IT PROBABLY HAD STARTED PR…
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1997 JEEP WRANGLER EXHAUST MANIFOLD. CONSISTENT DECREASE IN POWER, STUMBLING, AND POOR GAS MILEAGE. AFTER A WRECK I NOTICED THE MANIFOLD WAS CRACKED. BOTH THE INSURANCE COMPANY AND THE AUTHORIZED JEEP DEALERSHIP TOLD ME IT WAS NOT DUE TO THE WRECK BUT DUE TO FACT IT WAS A COMMON WRANGLER PROBLEM, AND IT PROBABLY HAD STARTED PRIOR TO THE WRECK I JUST HADN'T NOTICED IT. BUT SINCE THERE IS NOT A RECALL THEY WOULD NOT FIX THE PROBLEM. I HAVE FIXED IT. *TR
NHTSA ODI #10234392
Mileage unknown · Jun 25, 2007
Engine And Engine Cooling
JEEP SUDDENLY LOST POWER ON HIGHWAYS WHILE GOING 55 MPH +., CAUSING A NEAR ACCIDENT WHILE TRYING TO COAST THROUGH LANES OF TRAFFIC TO THE MEDIAN. AFTER 10-15 MINUTES, I RESTARTED THE JEEP AND IT RAN FINE, BUT USUALLY ABOUT 20-50 MILES, IT WILL OCCUR AGAIN.. VERY HAZARDOUS. *AK
NHTSA ODI #10194125
75,000 miles · Feb 24, 2006
Engine And Engine Cooling
CATALYTIC CONVERTER FAILURE CAUSING POOR PERFORMANCE, EXCESSIVE FUEL CONSUMPTION AND NOXIOUS ODORS. REPLACEMENT OF CONVERTER REMEDIED ALL THE PROBLEMS. *JB
NHTSA ODI #10151148
40,000 miles · Dec 19, 2005
Engine And Engine Cooling
SAME AS EVERYONE ELSE....CRACKED EXHAUST MANIFOLD ON 4.0 L 6 CYL. JEEP HAS REDESIGNED PART. I FORMERLY WORKED WITH A 4X4 REPAIR SHOP, AND ALMOST EVERYONE THAT CAME IN WITH A 1997-2000 (OR SO) JEEP HAD SAME CRACKS. LEADING 4X4 MAGAZINES STATE "IT'S NOT IF IT CRACKS, IT'S WHEN". GIVEN THIS MANY COMPLAINTS, JEEP SHOULD BE PAYIN…
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SAME AS EVERYONE ELSE....CRACKED EXHAUST MANIFOLD ON 4.0 L 6 CYL. JEEP HAS REDESIGNED PART. I FORMERLY WORKED WITH A 4X4 REPAIR SHOP, AND ALMOST EVERYONE THAT CAME IN WITH A 1997-2000 (OR SO) JEEP HAD SAME CRACKS. LEADING 4X4 MAGAZINES STATE "IT'S NOT IF IT CRACKS, IT'S WHEN". GIVEN THIS MANY COMPLAINTS, JEEP SHOULD BE PAYING TO FIX THEIR FLAW, NOT CONSUMERS. WILL REPLACE WITH AFTERMARKET COMPONENT, NOT JEEP'S. *JB
NHTSA ODI #10145622
55,000 miles · Aug 3, 2005
Engine And Engine Cooling
I AM IN THE PROCESS OF REPLACING THE EXHAUST MANIFOLD ON MY 1997 JEEP WRANGLER FOR THE SECOND TIME. THE FIRST ONE FAILED AT APPROX 55K MILES (OUT OF WARRANTY) AND CHRYSLER JEEP CUSTOMER SERVICE DENIED EXISTENCE OF A PROBLEM WITH THE EXHAUST SYSTEM, IN SPITE OF NUMEROUS REPORTS OF MANIFOLD FAILURE ON MANY INTERNET AUTOMOTIVE SIT…
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I AM IN THE PROCESS OF REPLACING THE EXHAUST MANIFOLD ON MY 1997 JEEP WRANGLER FOR THE SECOND TIME. THE FIRST ONE FAILED AT APPROX 55K MILES (OUT OF WARRANTY) AND CHRYSLER JEEP CUSTOMER SERVICE DENIED EXISTENCE OF A PROBLEM WITH THE EXHAUST SYSTEM, IN SPITE OF NUMEROUS REPORTS OF MANIFOLD FAILURE ON MANY INTERNET AUTOMOTIVE SITES. THE REPLACEMENT PART WAS SUPPOSEDLY REDESIGNED TO PREVENT RECURRENCE OF THE PROBLEM, BUT IT HAS NOW FAILED (MILEAGE IS NOW 110K, SO THESE ARE 55K PARTS!) AND MUST ALSO BE REPLACED. THE MECHANIC STATED THAT THE REPLACEMENT PARTS JUST CRACK IN A "NEW SPOT". CHRYSLER JEEP HAS BEEN TOTALLY UNRESPONSIVE TO WHAT IS OBVIOUSLY AN ENGINEERING FLAW IN THEIR PRODUCT, AND STICKING THEIR CUSTOMERS WITH THE BILL AND ANY RESULTING SAFETY ISSUES! NOT A GREAT WAY TO BUILD YOUR CUSTOMER BASE! *NM
NHTSA ODI #10131459
90,000 miles · Oct 31, 2004
Engine And Engine Cooling
CRACKED EXHAUST MANIFOLD ON 97 TO 2000 JEEP TJ WRANGLERS. MISSING EXHAUST "ACCORDING" MISSING RESULTING IN CRACKED MANIFOLD. RESULTING IN CAR FAILING US EPA SMOG GUIDELINES. IN SEARCH OF TJ OWNERS SHOWED MANY OWNERS HAVING THIS PROBLEM. *JB
NHTSA ODI #10098069
45,000 miles · Oct 1, 2004
Engine And Engine Cooling
CONSUMER NOTICEDE A LOUD NOISE WHILE DRIVING AND EXHAUST FUMES COMING INTO THE VEHICLE. CONSUMER TOOK VEHICLE TO DEALER FOR INSPECTION. DEALER INFORMED CONSUMER THAT VEHICLE HAD MULTIPLE CRACKS ON THE EXHAUST MANIFOLD, AND IT WAS NOT COVERED UNDER A RECALL. *AK *TC
NHTSA ODI #10090219
73,000 miles · Mar 8, 2004
Engine And Engine CoolingFuel System, OtherPower Train
MY VEHICLE HAS RUN ROUGH, IDLING ROUGH, "BUCKING", LOSING COOLANT AND DRIPPING FROM THE TAILPIPE ABOUT A WEEK AFTER THE EXTENDED WARRANTY EXPIRED. I HAVE HAD MAJOR VALVE TRAIN PROBLEMS AND HAD TO HAVE THE CAMSHAFT REPLACED ALONG WITH THE GASKET, CYLINDER HEAD, CORE RETURN, RADIATOR AND NOW THE LATEST IS OIL PRESSURE GAUGE SENDIN…
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MY VEHICLE HAS RUN ROUGH, IDLING ROUGH, "BUCKING", LOSING COOLANT AND DRIPPING FROM THE TAILPIPE ABOUT A WEEK AFTER THE EXTENDED WARRANTY EXPIRED. I HAVE HAD MAJOR VALVE TRAIN PROBLEMS AND HAD TO HAVE THE CAMSHAFT REPLACED ALONG WITH THE GASKET, CYLINDER HEAD, CORE RETURN, RADIATOR AND NOW THE LATEST IS OIL PRESSURE GAUGE SENDING UNIT. OIL PRESSURE STILL SHOWING ZERO EVEN AFTER REPLACING SENDING UNIT! *AK
NHTSA ODI #10060716
110,000 miles · Feb 24, 2004
Engine And Engine Cooling
THE CATALYTIC CONVERTER BROKE AND THE PART FROM IT CLOGGED UP , WHICH CAUSED THE VEHICLE TO LOOSE POWER. *JB THE VEHICLE WOULDN'T EXCEED 50-60 MPH ALONG WITH RATTLING DUE TO AN INTERNALLY BROKEN CONVERTER. THE INTERIOR DOOR HINGE WAS INOPERATIVE. *SC
NHTSA ODI #10055908
74,000 miles · Jan 15, 2004
Engine And Engine CoolingFuel System, GasolinePower Train
I BOUGHT THIS 1997 JEEP WRANGLER FROM A USED CAR DEALER IN JUNE 2002 WITH A LIMITED WARRANTY AND WAS TOLD THE VEHICLE PASED INSPECTION AND HAD NO PROBLEMS. SINCE THEN I HAVE HAD TO HAVE THE WIRING HARNESS REPAIRED, THE FUEL PUMP REPLACED, THE TRANSMISSION REPLACED, IT HAS A FAULTY FUEL GAUGE READING, THE INTAKE AND EXHAUST MANI…
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I BOUGHT THIS 1997 JEEP WRANGLER FROM A USED CAR DEALER IN JUNE 2002 WITH A LIMITED WARRANTY AND WAS TOLD THE VEHICLE PASED INSPECTION AND HAD NO PROBLEMS. SINCE THEN I HAVE HAD TO HAVE THE WIRING HARNESS REPAIRED, THE FUEL PUMP REPLACED, THE TRANSMISSION REPLACED, IT HAS A FAULTY FUEL GAUGE READING, THE INTAKE AND EXHAUST MANIFOLD NEED TO BE REPLACED AND NOW THE STEERING LINKAGE OR STABILIZER BARS ARE FAULTY.
NHTSA ODI #10070478
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