2003 Jeep Wrangler Engine cooling Problems
- Complaints
- 6about this part
- Share
- 6%of 98 total for the year
- Median mileage
- 15,100miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine cooling of the 2003 Jeep Wrangler, 6% of the 98 complaints for this model year. Where a mileage was given, the median is 15,100 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.
“Traveling at 60-65mph vehicle cut off without warning. No lights on dash came on. Pulled out of way of other traffic and came to a complete stop. Tried starting and started right up. Mileage 77,200.”
NHTSA complaint #10292334, filed 2009-11, 77,200 miles“According to internal sales brochures and advertisements the 2003 Jeep Wrangler rubicon is supposed to be the most capable off road Jeep ever. My Jeep has been nothing but problems, which consists of 2 broken axles, faulty brakes, faulty parking brake, faulty u-joint clips, faulty wheel bearing. After paying the dealer to replace parts that should have been covered under warranty, then realizing that they failed to replace another failed part, called to ask about a workaround until the needed part came in. The advice given was to remove the broken axle shaft and drive without it. …”
NHTSA complaint #10041471, filed 2003-10, 6,200 miles“Paint peeling off of fenders and on the hindges of the hard top and doors. There is a constant ticking, rattle sound coming from the engine. I have driven with the head mechanic,and the dept. Manager. They both have heard the sound. The Jeep has been in the shop 9 times and the problem still exhists. I have loss confidence in the local dealership's service dept.”
NHTSA complaint #10075349, filed 2004-06“2013 Jeep Wrangler. Consumer writes in regards to intermittent engine problems, while driving up hills acceleration speeds decrease. The consumer stated upon driving up hills, the check engine light illuminated. The consumer stated after doing some research online, it appeared that another model was recalled for the same problem. Owners indicated the cam shaft sensors and dynamic sensor control needed a TCM update.”
NHTSA complaint #10946129, filed 2017-01“The contact owns a 2003 Jeep Wrangler. While driving 55 MPH, the crankshaft position sensor failed and the check engine light continued to illuminate. The contact took the vehicle to the dealer and they confirmed that the sensor malfunctioned. He discovered a recall for the same exact failure with the 2004 Jeep Wrangler. The manufacturer stated that the failure was not under warranty and would not be covered, although he had a current 7-year powertrain warranty. The current and failure mileages were approximately 24,000.”
NHTSA complaint #10230444, filed 2008-06, 24,000 milesRelated service bulletins
- 10191460Feb 26, 2016Valve Body. These may cause over drive cycling.
- 10229181Feb 12, 2015Part Description: 5.7L Long Block Issue Description: This 5.7L Long Block Assembly is compatible with both EGR and Non-EGR applications. An EGR Block-Off Plate (53032739AA) must…
- 10223602Feb 12, 2015Part Description: 5.7L Long Block Issue Description: This 5.7L Long Block Assembly is compatible with both EGR and Non-EGR applications. An EGR Block-Off Plate (53032739AA) must…
Engine 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 2003 Jeep Wrangler
22 complaintsSuspension
18 complaintsSteering
14 complaintsFuel system
11 complaintsBrakes
10 complaintsElectrical system
9 complaintsAir bags
7 complaintsSeat belts
6 complaintsOther or unknown
4 complaintsLatches, locks and linkages
3 complaintsBody and structure
3 complaintsExterior lighting
2 complaints
← All problems reported for the 2003 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