really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
1 / 0
Average Mileage:
86,375 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Jeep Wrangler engine problems

engine problem

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2004 Jeep Wrangler Owner Comments

problem #4

Mar 112016


  • 91,500 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 Wrangler that they have encountered recently (12 years after market and 2 years completely out of warranty). No one can find a replacement PCM because they are no longer manufactured, and it was Chrysler's recommendation that customers experiencing this issue go to a scrap yard to find a replacement (likely to have the same issue). As a customer I am appalled that we are aware of this issue and there have been no recalls. Driving down the highway my battery charged to 20 volts and could have exploded.

- Atlanta, GA, USA

problem #3

Jun 092014


  • 114,000 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.

- Valley, AL, USA

problem #2

May 282014


  • 140,000 miles
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. A truck driver with a dry chemical fire extinguisher put the engine fire out; after lifting the hood to a ball of fire. The only injury begin light burns from lifting the hood. Essentially, my Jeep Wrangler, with no aftermarket parts installed, burst into flames for no apparent reason.

- Aiken, SC, USA

problem #1

Aug 192012

Wrangler 4WD 6-cyl

  • 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. The consumer took the vehicle to a pre-sales establishment and the inspection revealed, the rear axles were leaking on both sides, the pinion seal in the front differential needed to be replaced, the front track bar had play, the transmission needed a new Pilot bearing; as there was a noise when accelerating and the rear sway bar links were loose.

- Lancaster, CA, USA

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