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EnginePart report

2004 Jeep Wrangler Engine Problems

Complaints
4about this part
Share
2%of 192 total for the year
Median mileage
114,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine of the 2004 Jeep Wrangler, 2% of the 192 complaints for this model year. Where a mileage was given, the median is 114,000 miles. 1 a fire, according to the filers.

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.

“The vehicle had been driven for about 35 minutes at approximately 70mph on the interstate. The vehicle unexpectedly began to produce a thick white smoke. The vehicle was immediately pulled over and placed into park; the vehicle was already on fire upon exiting. The grass beneath had caught on fire as well. The hood began to blacken indicating a fire in the engine compartment close to the firewall. The entire incident took place in about thirty seconds; from the time it began to smoke to the time it was on fire begin the entire incident. …”

NHTSA complaint #10597855, filed 2014-06, 140,000 miles

“At 91,500 miles the PCM failed for a second time. I am not certain when the first failure occurred, but it was shown to have been flashed previously. This issue surfaced in the form of a stall out at a light. When attempting to accelerate from an idle position the engine stalled. After parking the vehicle, turning over the engine while simultaneously giving it gas, the vehicle turned over. According to three different mechanics this is a common issue among '04 Jeep wranglers that they have encountered recently (12 years after market and 2 years completely out of warranty). …”

NHTSA complaint #10850515, filed 2016-03, 91,500 miles

“The contact owns a 2004 Jeep Wrangler. While driving 20 MPH, the engine stalled without warning. The vehicle was shifted into park and restarted; however, the failure recurred several times. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was 114,000.”

NHTSA complaint #10663984, filed 2014-12, 114,000 miles

“2004 Jeep Wrangler. Consumer writes in regards to several issues found during inspection after purchase of vehicle the consumer stated the day she test drove the vehicle, she noticed some play in the steering, the engine seemed to miss a little, and the cd player in the radio seemed to work whenever it wanted to. The next day, the consumer noticed the front differential leaked an oil spot on the concrete driveway. …”

NHTSA complaint #10474863, filed 2012-09

Engine: other model years

YearComplaintsShare of year
202618%
20252940%
202441756%
202310829%
20229323%
202122223%
2020569%
2019456%
2018995%
20176220%
20168819%
201512827%
201432249%
201314021%
201217221%
2011367%
2010386%
2009185%
2008374%
2007336%
200691%
2005193%
200442%
200311%
200244%
200121%
200094%
199910%
199721%
199011%

Other parts of the 2004 Jeep Wrangler

Steering
67 complaints
Suspension
59 complaints
Transmission and drivetrain
26 complaints
Brakes
18 complaints
Body and structure
13 complaints
Electrical system
12 complaints
Fuel system
12 complaints
Seat belts
10 complaints
Engine cooling
9 complaints
Visibility (wipers, defrost, mirrors)
9 complaints
Other or unknown
7 complaints
Tires
7 complaints

← All problems reported for the 2004 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