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Engine coolingPart report

1998 Jeep Grand Cherokee Engine cooling Problems

Complaints
69about this part
Share
7%of 1,028 total for the year
Median mileage
141,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 69 complaints about the engine cooling of the 1998 Jeep Grand Cherokee, 7% of the 1,028 complaints for this model year. Where a mileage was given, the median is 141,000 miles. 2 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My vehicle was sitting in the parking lot of central maine community college after having been parked for over an hour self combusted into flames .the aubrn firedepartment informed me that they had seen at least a half a dozen of this vehicle self combust as mine had.”

NHTSA complaint #10230036, filed 2008-06, 100,000 miles

“Out of no where my 98 grand Jeep cherokee started experiencing stalling problems and misfires sporadically during acceleration. The vehicle will be sitting at idle or going at a very slow speed and will just stall. It cranks back up fine (most of the time-sometimes, it takes about 30 seconds of cranking it) the problem occurs at different times - morning, night, cold, hot, etc. It seems to act worse the longer the vehicle has sat undriven (overnight or during a work shift). I stall out in traffic - recently at a light and then the light changed and I could not start my vehicle. …”

NHTSA complaint #10366636, filed 2010-11, 225,000 miles

“My 98 jgc started stalling randomly; on acceleration, deceleration, highway, stoplights, etc. It would always start back up and run again, but the stalling would happen at any time. No codes would register either. The dealer tried replacing the idle air control motor and ignition coil ($300), but the problem continued. I replaced the ignition wires, distributor cap, spark plugs, and throttle position sensor but still the same. . When this occurs the electrical system would drop out momentarily. Also, when the asd drops out, there are no computer codes registered. …”

NHTSA complaint #10289864, filed 2009-10, 156,000 miles

“Dealer identified a cracked exhaust manifold in my 1998 Jeep Grand Cherokee. The car only has 49,600 miles and is not used for off-road driving. I believe there is a manufacturer defect. Most owners, as in my case, find out too late. There seems to be increasing and recurring incidents with the 4.0l engines. Chrysler redesigned the 1999 models without notifying 1998 owners of the manifold problem. Chrysler is not willing to pay for any of the $1200 plus it will cost me to repair.”

NHTSA complaint #10028691, filed 2003-07, 49,600 miles

“I own a 1998 Jeep Grand Cherokee limited 5.9 liter engine. I drive the car 5000 miles/year and the car has 39000 total miles. The catalytic converter failed and began to rattle. The local Jeep dealership refused to admit it was the catalytic converter , and said it was the muffler. I took the vehicle to 4 different exhaust shops, and all 4 immediately said it was definitely the catalytic converter. I finally got the Jeep dealership to replace it and they too finally admitted it was indeed the catalytic converter. …”

NHTSA complaint #10106188, filed 2005-01, 39,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202410%
202310%
202210%
202120%
202062%
201951%
2018172%
201762%
201683%
2015232%
2014452%
201341%
2012181%
2011151%
201033%
200954%
2008395%
2007777%
2006534%
2005784%
2004554%
2003426%
200214610%
2001536%
200017812%
19991217%
1998697%
1997818%
19968810%
19957010%
19947513%
1993468%
1991117%
1989120%

Other parts of the 1998 Jeep Grand Cherokee

Transmission and drivetrain
426 complaints
Fuel system
166 complaints
Brakes
161 complaints
Body and structure
68 complaints
Electrical system
60 complaints
Steering
40 complaints
Vehicle speed control
39 complaints
Air bags
36 complaints
Suspension
32 complaints
Visibility (wipers, defrost, mirrors)
28 complaints
Other or unknown
22 complaints
Latches, locks and linkages
18 complaints

← All problems reported for the 1998 Jeep Grand Cherokee

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology