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2015 Jeep Wrangler: engine failure

8 of the 481 complaints about the 2015 Jeep Wrangler describe engine failure.

owner complaints
8
of this car's complaints
2%
recalls
0
Is there a fix? 28 service bulletins cover this area of the car. See below

Engine failure by model year

What owners say

Filed Jun 29, 2026 · Engine, Transmission · VA

am the original owner of this 2015 Jeep Wrangler, which I purchased new. The vehicle has been properly maintained according to the manufacturer's recommended maintenance schedule. I have records documenting routine maintenance, including regular oil changes. At approximately 75,000 miles, I began hearing a persistent ticking noise from the engine. Because I was concerned that the noise could indicate a mechanical problem, I scheduled an inspection with an authorized Jeep dealership. The dealership diagnosed the vehicle with a failed rocker arm that caused damage to the exhaust camshaft. The dealership advised that the intake camshaft remained in good condition, indicating that the failure was isolated to the exhaust valvetrain at the time of diagnosis. This type of internal engine failure at approximately 80,000 miles was unexpected for a properly maintained vehicle. My concern is that if this condition is not diagnosed promptly, continued operation could result in further engine damage, loss of engine performance, engine misfire, or potential engine failure while the vehicle is being driven, creating a potential safety hazard. While researching this issue after receiving the diagnosis, I found numerous reports from other owners of vehicles equipped with the 3.6L Pentastar engine describing similar rocker arm and camshaft failures across Jeep owner forums, Reddit, Facebook owner groups, and YouTube. Although I understand there has not been a recall for this condition on my vehicle, I believe the number of similar owner reports suggests the issue may warrant further review. I am submitting this complaint so that the federal safety agency is aware of the issue and can evaluate whether similar failures are occurring with sufficient frequency to justify additional investigation.

Filed Feb 13, 2026 · Brakes, Transmission · 80,000 miles · TX

The contact owns a 2015 Jeep Wrangler. The contact stated that while starting the vehicle, the ABS, traction control, and parking brake warning lights were illuminated. The contact stated the brake pedal seized, and the transmission was shifting roughly. The vehicle was driven to an independent mechanic, where it was diagnosed with ABS module failure. The dealer was notified of the failure; however, the vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 80,000.

Filed Nov 4, 2025 · Engine · LA

2015 Jeep Wrangler with 3.6l Pentastar Engine having repeated engine failures associated with the use of possibly defective repair parts / defective cylinder head repairs / recurring cylinder 6 misfire alerts..

Filed Jul 16, 2025 · Engine · OH

On a trip on 7/3/2025 out of state the engine failed due to a blown head gasket , which is the third engine related problem I have experienced . Other issues include: Broken exhaust valve spring, cracked oil filter housing. With being the original owner and having only 84,000 miles I feel this has to be an issue Jeep is having with my engine 3.6 Liter V6. I am lodging a formal complaint to hopefully, have help with the $11,000 quoted price to replace my engine. Thank you

Filed Jul 12, 2024 · Engine · TX

My Jeep has the pentastar 3.6l engine and has recently developed what is known as the “pentastar tick”. This is caused by a design flaw with the valvetrain, specifically the lifters/rocker arms that causes excessive wear which leads to the tick, which may then lead to engine failure and loss of control. This is a very common problem with the 3.6 engine and FCA should be held responsible for the safety recall. FCA has already acknowledged the problem on 2012-2014 engines, and extended the warranty, but not on the later engines. Please look out for the consumer and hold them accountable.

Filed Mar 18, 2024 · Engine · NY

I have just replaced the Engine oil filter housing on my 2015 jeep wrangler unlimited rubicon for the fourth time the first three replacements were at East hills jeep on Long Island n.y the fourth repair was at Willis ave repair and diagnostic in Albertson N.Y at a cost of $859.33. Ongoing problem with thousands of other jeeps owners reporting the same issue. during the course of these breakdowns, I’ve had to have my vehicle towed to the repair place twice as the oil had drained out of the vehicle causing fatigue and overheating to the engine. I currently has 95,000 miles on my jeep witch is well taken care of and serviced at the East hills jeep dealership. My concern is future damage to my engine due to the extreme temperatures caused by the lack of oil and overheating due to this defect. How is it that the manufacturer is not held responsible for an obvious defect in a crucial engine component causing multiple replacements to thousands of similar vehicles.

Filed Jan 17, 2024 · Engine · VA

At 134,000 miles the engine developed a loud ticking. My garage reported that rocker arms, cam shafts and heads needed rrplacement. They recommended that Jeep dealer should be performing the work so that I might have a parts warranty. The dealer reported back that the work would be extensive and recommended engine replacement with a $13,000 estimate.

Filed Dec 29, 2014 · Steering · 2,000 miles · IN

Tl* the contact owns a 2015 jeep wrangler. While driving at approximately 70 MPH over a pothole, the contact lost control of the vehicle. In addition, the steering wheel veered to the right and seized. The vehicle was towed to the dealer, but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 2,000.

Service bulletins that may apply

Related recalls

No recalls on record for this model year.

Questions about the 2015 Jeep Wrangler engine failure

Is engine failure a common problem on the 2015 Jeep Wrangler?

8 of 481 owner complaints about the 2015 Jeep Wrangler (2%) mention engine failure. The model year with the most reports is 2024.

Is there a recall or service bulletin for this on the 2015 Jeep Wrangler?

There are 0 recalls and 28 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 2015 Jeep Wrangler

ABS 130Check engine light 35Adaptive cruise 26Fire or smoke 26Misfire 24Airbag light 22Knocking 16Stalling 16Won't shift 12Loss of power 7Overheating 7No deployment 6Seat belt 6Water leak 6Grinding brakes 5

All model years of the Jeep Wrangler

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