1990 Jeep Wrangler Engine cooling Problems
- Complaints
- 7about this part
- Share
- 9%of 79 total for the year
- Median mileage
- 99,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the engine cooling of the 1990 Jeep Wrangler, 9% of the 79 complaints for this model year. Where a mileage was given, the median is 99,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While driving 65 MPH the front left wheel and tire fell off, causing the vehicle to skid. Two days after purchase the vehicle stall, would not start and was not holding in idle. The problem still existed being then, vehcile looked at by independent inspector and was discovered that the muffler, ball joints and u-joint had failed. The vehicle was repaired at consumer's expense, still the vehicle idles improperly.”
NHTSA complaint #815876, filed 1997-09“Oil is going straight through the breather tube from valve cover to the air filter then into exhaust manifold and burning out exhaust (1 quart a week)not the pcv tube the tube in the rear of valve cover.”
NHTSA complaint #720628, filed 2000-03Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 1% |
| 2023 | 2 | 1% |
| 2022 | 2 | 0% |
| 2021 | 4 | 0% |
| 2020 | 6 | 1% |
| 2019 | 5 | 1% |
| 2018 | 4 | 0% |
| 2017 | 1 | 0% |
| 2016 | 6 | 1% |
| 2015 | 4 | 1% |
| 2014 | 9 | 1% |
| 2013 | 4 | 1% |
| 2012 | 7 | 1% |
| 2011 | 6 | 1% |
| 2010 | 15 | 2% |
| 2009 | 5 | 1% |
| 2008 | 11 | 1% |
| 2007 | 28 | 5% |
| 2006 | 20 | 3% |
| 2005 | 22 | 3% |
| 2004 | 9 | 5% |
| 2003 | 6 | 6% |
| 2002 | 4 | 4% |
| 2001 | 21 | 12% |
| 2000 | 15 | 6% |
| 1999 | 50 | 23% |
| 1998 | 53 | 20% |
| 1997 | 109 | 27% |
| 1995 | 32 | 16% |
| 1994 | 25 | 17% |
| 1993 | 18 | 17% |
| 1992 | 7 | 9% |
| 1991 | 12 | 16% |
| 1990 | 7 | 9% |
| 1989 | 10 | 16% |
| 1988 | 7 | 14% |
| 1987 | 5 | 13% |
Other parts of the 1990 Jeep Wrangler
28 complaintsFuel system
20 complaintsSeats
12 complaintsSeat belts
6 complaintsTransmission and drivetrain
5 complaintsElectrical system
4 complaintsSuspension
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsSteering
2 complaintsBody and structure
2 complaintsTires
2 complaintsWheels
2 complaints
← All problems reported for the 1990 Jeep Wrangler
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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