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really awful
Typical Repair Cost:
Average Mileage:
72,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2004 Jeep Wrangler engine problems

engine problem

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2004 Jeep Wrangler Owner Comments

problem #1

Dec 102012

Wrangler Rubicon 4.0L Inline 6

  • Automatic transmission
  • 72,000 miles


A moment after the engine light turned on, the engine started to knock really bad and couldn't go over 30 mph. The dealer looked at it and said it had a collapsed lifter. They told us it just happens. FYI: Make sure you keep all receipts for repairs and maintenance for extended warranties. We were missing one of our oil receipts so the extended warranty won't cover this repair and future ones. So we took it to our mechanic to work on it. It had some bent push rods and needs several new valves. We took the head to a machine shop to be rebuilt. Hopefully when our mechanic gets it back together again, it won't happen again. Our mechanic thinks it could have been a manufacturing problem because it shouldn't have happen with only 72,000 miles on the vehicle.

- , Benton City, WA, USA

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