2001 Jeep Wrangler Engine Problems
- Complaints
- 2about this part
- Share
- 1%of 170 total for the year
- Median mileage
- 134,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2001 Jeep Wrangler, 1% of the 170 complaints for this model year. Where a mileage was given, the median is 134,000 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.
“Another victim of the 2000-2001 Jeep 4.0l cylinder head cracking between cylinders 3 and 4 on the cylinder head. Cracked head has caused many other expensive problems throughout the engine such as (coolant system failure, crankcase bearing failures, oil pump failure, valve stems being warped, etc.) after extensive research and being a part of many online polls this is obviously a problem with jeeps of all models that have the 4.0l inline 6 cylinder heads of these years. The vehicle was in motion when cracked head occurred causing the engine to overheat as well as oil pressure to drop. …”
NHTSA complaint #10823503, filed 2016-02, 132,000 miles“The contact owns a 2001 Jeep Wrangler. The contact stated that the engine overheated several times. The vehicle was taken to a local mechanic where the radiator was replaced twice and the engine seal was also replaced however, the failure was not corrected. The vehicle was taken back to the mechanic, who determined that the engine head gasket was cracked, causing pistons 3 and 4 to fail. In addition, the radiator fluid began to drain abnormally. The vehicle was not repaired. The failure mileage was 136,000 and the current mileage was 148,000. …”
NHTSA complaint #10480195, filed 2012-10, 136,000 milesEngine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 8% |
| 2025 | 29 | 40% |
| 2024 | 417 | 56% |
| 2023 | 108 | 29% |
| 2022 | 93 | 23% |
| 2021 | 222 | 23% |
| 2020 | 56 | 9% |
| 2019 | 45 | 6% |
| 2018 | 99 | 5% |
| 2017 | 62 | 20% |
| 2016 | 88 | 19% |
| 2015 | 128 | 27% |
| 2014 | 322 | 49% |
| 2013 | 140 | 21% |
| 2012 | 172 | 21% |
| 2011 | 36 | 7% |
| 2010 | 38 | 6% |
| 2009 | 18 | 5% |
| 2008 | 37 | 4% |
| 2007 | 33 | 6% |
| 2006 | 9 | 1% |
| 2005 | 19 | 3% |
| 2004 | 4 | 2% |
| 2003 | 1 | 1% |
| 2002 | 4 | 4% |
| 2001 | 2 | 1% |
| 2000 | 9 | 4% |
| 1999 | 1 | 0% |
| 1997 | 2 | 1% |
| 1990 | 1 | 1% |
Other parts of the 2001 Jeep Wrangler
38 complaintsElectrical system
37 complaintsTransmission and drivetrain
23 complaintsEngine cooling
21 complaintsSuspension
21 complaintsAir bags
20 complaintsOther or unknown
13 complaintsVisibility (wipers, defrost, mirrors)
13 complaintsSteering
10 complaintsFuel system
7 complaintsBrakes
5 complaintsEquipment
4 complaints
← All problems reported for the 2001 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