10.0

really awful
Crashes / Fires:
1 / 14
Injuries / Deaths:
0 / 0
Average Mileage:
27,915 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.

2015 Jeep Wrangler engine problems

engine problem

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2015 Jeep Wrangler Owner Comments (Page 2 of 6)

« Read the previous 20 complaints

problem #88

Aug 282023

Wrangler

  • miles

A D V E R T I S E M E N T S

Vehicle engine light flashing while vehicle is on. Vehicle shaking, odometor and other gauges are sporadically flashing and shutting off while driving.

- Kyle, TX, USA

problem #87

May 012023

Wrangler

  • 113,000 miles
The contact owns a 2015 Jeep Wrangler. The contact stated that while driving at various speeds, the vehicle lost motive power and stalled. The contact stated that the failure had occurred several times while driving on a busy freeway. The failure also occurred while the vehicle was idling at a red light. After the failure, the vehicle was restarted and operated normally. The vehicle was taken to the local dealer who was unable duplicate a failure or determine the cause of the failure. The vehicle was not repaired. The contacted stated that after retrieving the vehicle the failure persisted. The manufacturer was also notified of the failure. The failure mileage was 113,000.

- Chandler, AZ, USA

problem #86

Jul 092023

Wrangler

  • miles
I have experience a complete loss of control of the vehicle on both highways and streets that are bumpy due to dips, potholes, rough conditions due to the road. I received a misfire on cylinder 4 code P0304 and was told my vehicle isn-??t covered for any recalls, but see that this is a common issue in 2013, 2014, 2015, and 2017 models. I want to know if any recalls or lawsuits are going on because my dealership informed me there aren-??t any and it would take a week to even be able to diagnose the issue.

- Chino , CA, USA

problem #85

Jul 132023

Wrangler

  • miles

A D V E R T I S E M E N T S

My Jeep has a left cylinder head failure at 78k miles. Jeep forums are full of discussions regarding this issue. The dealer says there is no reason for the failure and that they have seen this before. Jeep says my warranty is expired so I am out of luck. This is my third Jeep and the first time I have had any issue mechanically. This failure is not from normal wear and tear. It's very frustrating that no recall on this obviously faulty engine part exists.

- Spring Branch, TX, USA

problem #84

Mar 242023

Wrangler

  • miles
I had a 2015 2 dr Jeep Wrangler Willy's edition. In march 2023, after sitting cold in the driveway for 10+ hours, it spontaneously combusted. It was very obviously an electrical fire based on the smell alone. It appeared that the most damage was in the area of the battery and fuse box. Vehicle was completely totaled and I found many reports online of similar issues, including many wranglers that were completely totaled after the fire. There is no official acknowledgement of this recurring issue. The fire caught so fast, if I had not been parked in the driveway faced away from the house, I might not have a home either. Insurance did not do an investigation into the cause of the fire.

- Mcdonough, GA, USA

problem #83

Dec 092022

Wrangler

  • miles
Oil filter housing assembly failed

- Rochester Hillsrovhester Hills, MI, USA

problem #82

Nov 042022

Wrangler

  • miles

A D V E R T I S E M E N T S

My truck was making a loud clicking noise and kind or rattle. I took the vehicle in to be serviced. I was told that I needed to have all lifters, rockers and cams replaced. That these items being worn out is a known issue with Jeep Wranglers but there has not been a recall for this issue. The dealership replaced those items the camshaft exhaust, camshaft intake, arm valve, tappet valve lash, gasket cylinder and gasket intake. As stated by the dealership having to replace the lifters, rockers and cams is a known issue. Most people just trade the truck in. I would like to know if this is a known issue why has there not been a recall for this? Also because of the cams this caused the cylinder misfire in the engine.

- Evanston, IL, USA

problem #81

Oct 312022

Wrangler

  • 141,200 miles
The contact owns a 2015 Jeep Wrangler. The contact stated while driving 55 MPH, the vehicle stalled temporarily. There was no warning light illuminated. The contact was able to continue driving; however, the failure reoccurred while driving. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 141,200.

- Bay City, MI, USA

problem #80

Sep 062022

Wrangler

  • miles
I have had the oil filter housing crack two times costing over 1 grand each time to have replaced by a shop. The lifters and rockers have gone out on each side of engine now with not even 91k miles on vehicle. Drivers side had 62,000 miles and then the passenger side had 91,000 miles on it. Maintenance has been done on time and not over due.

- Rocky Ford, CO, USA

problem #79

Apr 012021

Wrangler

  • miles
Oil filter housing leaking oil, build up of oil sludge on top of intake manifold, if build up persists it may cause vehicle to catch fire

- St. Clairsville , OH, USA

problem #78

May 192022

Wrangler

  • miles

A D V E R T I S E M E N T S

Check engine light came on. Took jeep to dealership - indicated that the left side cylinder head needed replaced, not placing would cause extensive damage. The vehicle had 65779 miles on it and is in excellent condition, there was no reason for the engine to have such significant problems based on usage. Learned this is a faulty issue and that Jeep is aware of it, although no additional warranty or recall was provided. I was paid over $3,392 to get the issue diagnosed and repaired.

- Phoenix, AZ, USA

problem #77

Jun 292022

Wrangler

  • miles
No crash or injuries. My Jeep only has 45,000 original miles and it is leaking oil from the oil cooler. I researched and this seems to be a very common issue with the 2015 3.6 L Jeep Wrangler. It cost over $1,500 to repair. As the other gentleman stated in his complaint, I feel this is a major issue that needs to be addressed by Jeep. See the other post below for further detail: I OWN TWO JEEP WRANGLERS, A 2013 AND A 2015. I HAD THE 2015 REPAIRED AT A COST OF OVER $1,000. NOW MY 2013 HAS DEVELOPED THE SAME PROBLEM; TO WIT, THE OIL COOLER/ OIL FILTER HOUSING CRACKS ON CHRYSLER 3.6 ENGINES AND THE OIL IS SPREAD ONTO THE EXHAUST PIPE WHICH HAS THE POTENTIAL OF CAUSING A FIRE. IF THIS IS NOT DISCOVERED, THE OIL WILL SPREAD TO THE REAR TIRES WHICH WILL CAUSE A TRACTION OR BRAKING HAZARD. CHRYSLER HAS NOT MODIFIED THE HOUSING AND WHEN YOU REPLACE, IT IS REPLACED WITH THE SAME PART THAT WILL FAIL IN THE FUTURE. CHRYSLER HAS TO KNOW THAT THIS PROBLEM EXISTS BY THE # OF UNITS THAT THEY HAVE SOLD, NOT TO MENTION THE THOUSANDS OF UNITS THAT ARE SOLD ON EBAY AND AUTOMOTIVE PARTS STORES. THERE SHOULD BE A RECALL ON THIS SITUATION BEFORE PEOPLE ARE INJURED OR KILLED.

- Lexington , VA, USA

problem #76

Jun 062022

Wrangler

  • miles
There-??s a ticking sound coming from my engine and it-??s misfiring in cylinder 5 and the check engine light is on. My concern is it-??s the rocker arm

- East Greenwich , RI, USA

problem #75

Jun 062022

Wrangler

  • miles
Our temperature gauge says it-??s overheating but it-??s not overheating. We-??ve had the radiator replaced twice. We-??ve had it at three different places to take a look at it, we had the dealership look at it and says they can-??t find anything. But it keeps losing coolant. This has been going on for the last 6 to 9 months can-??t drive the car more than a few miles.

- Chester Springs , PA, USA

problem #74

Nov 302021

Wrangler

  • miles
I own two Jeep Wrangler, a 2013 and a 2015. I had the 2015 repaired at a cost of over $1,000. Now my 2013 has developed the same problem; to wit, the oil cooler/ oil filter housing cracks on Chrysler 3.6 engines and the oil is spread onto the exhaust pipe which has the potential of causing a fire. If this is not discovered, the oil will spread to the rear tires which will cause a traction or braking hazard. Chrysler has not modified the housing and when you replace, it is replaced with the same part that will fail in the future. Chrysler has to know that this problem exists by the # of units that they have sold, not to mention the thousands of units that are sold on ebay and automotive parts stores. There should be a recall on this situation before people are injured or killed.

- Liberty, IL, USA

problem #73

Oct 012021

Wrangler

  • miles
My vehicle has been suddenly shutting off while I am driving. There is no warning that anything is wrong with the vehicle. The first time it happened was October 2021. When it has these failures they happen multiple times. The next day the car operates normally. There are no consistencies when this happens - it has shut off when I am driving 20mph and 60mph. There are no error messages that come up on the vehicle. I took it to Chuck Patterson and they were unable to retrieve an error code and refused to diagnose intermittent issues. They did not find any visible issues with the vehicle. I have an open case with Stellantis but they have not done anything. This issue has happened when I am driving my 2 year old nephew and is life threatening. Stellantis has not sent out anyone to inspect my vehicle. I bought the vehicle brand new special order and it has 104,000. I have not had any issues until now.

- Chico, CA, USA

problem #72

Jan 212022

Wrangler

  • miles
I have owned my Jeep since 2015 and bought it brand new from the dealership. I have replaced the thermostat three times already. Yesterday, 1-21-22, I was driving home on the interstate. The thermostat stuck again, would not open, and caused it to start dumping coolant out of it while driving. That caused the belt to slip and causing me to almost get into an accident trying to pull over. This Jeep has had several issues with overheating in the almost seven years I-??ve had it.

- Nunnelly, TN, USA

problem #71

Feb 062019

Wrangler

  • miles
2015 Jeep Wrangler 66,000 mi on it rocker arms are rattling need to be replaced it's a problem at all 2015 what I understand

- Opelika, AL, USA

problem #70

Oct 192021

Wrangler

  • miles
I have 2015 Jeep Wrangler Unlimited Rubicon 1000,15 miles on and it has the ticking noise. I took it to my independent mechanic shop. The independent mechanic diagnosed the issue and said that the tick is coming from the passenger side of the Engine.I chatted with FCA to see if they can provide any assistance on this issue they denied even if the vehicle its out of warranty therefore is has to be cover out of my pocket cost.

- Indio, CA, USA

problem #69

Oct 082021

Wrangler

  • miles
My 2015 Jeep Wrangler with 80,200 developed the well know Pentastar Tick. The Jeep would misfire at idle when slowing to a stop light. The check engine light came on and the code was a P0304. I'm the original owner and took it to the dealer I purchased it from. They diagnosed the issue and called me stating that he Jeep needs new rockers and a cam shaft on the drivers side engine bank. FCA has known about this issue since 2012. I called FCA to see if they would provide any assistance to repair the Jeep. FCA refused to acknowledge that this issue exists and refuses any assistance for owners even slightly out of warranty even though it is a manufacturing defect.

- Scottsdale, AZ, USA

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