2013 Jeep Wrangler: misfire or rough idle

Filed Dec 9, 2024 · Engine · 95,000 miles · AZ

The contact owns a 2013 Jeep Wrangler. The contact stated while driving at an undisclosed speed, there was an engine misfire, with the check engine warning light illuminated. The vehicle was restarted; however, the failure recurred. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and confirmed that the VIN was not included in TSB: 09-002014 Rev. B (Engine). The approximate failure mileage was 95,000.

Filed May 3, 2023 · Engine · 57,000 miles · GA

The contact owns a 2013 Jeep Wrangler. The contact stated that while driving at highway speeds, the check engine and traction control warning lights suddenly illuminated, and the vehicle went into LIMP Mode and decelerated to under 45 MPH. The vehicle was taken to the local dealer who replaced the cylinder head oil plugs, but the failure persisted. The vehicle was later taken to a second dealer who diagnosed that the engine had experienced low compression leak and multiple misfires. The contact was informed that the cylinder head, engine valves, and springs needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and informed the contact that that a VIN was not included in the Extended Coverage for the failure. The failure mileage was 57,000.

Filed Jan 31, 2023 · Engine · 114,000 miles · AZ

The contact owns a 2013 Jeep Wrangler. The contact stated while at a stop light the vehicle started to stall while accelerating. The contact stated that there was no warning light illuminated. The vehicle was taken to an independent mechanic and the crank shaft sensor was replaced, but the failure persisted. The vehicle was taken to the dealer and the contact was notified of the cylinder #2 misfire. The vehicle was not repaired. The manufacturer was contacted and stated that the vehicle was not under recall. The failure mileage was 114,000.

Filed Oct 3, 2022 · Engine · 89,800 miles · TX

The contact owns a 2013 Jeep Wrangler. The contact stated that the check engine warning light was illuminated. The contact used a DTC reader and recovered a code for a misfire in cylinder #6. The contact took the vehicle to the dealer and was informed that her vehicle was not under warranty. The manufacturer was also notified of the failure and provided a case number. The contact was also provided the same information as the dealer. The vehicle was repaired by the dealer. The failure mileage was approximately 89,800. The contact has made several calls to customer service submitting claims and denied. The vin number was not included in the service bulletin and the contact believes several vins are missing from the list.

Filed Jun 16, 2020 · Engine · 55,000 miles · OH

My 2013 jeep wrangler started having a code that read "misfire on cylinder 6" at about 55,000 miles. After changing the spark plugs and ignition coils on the drivers side bank of cylinders (2,4,and 6) the trouble code still continued to pop up about every week or two. I then took it to my local jeep, chrysler, ram dealer to investigate further. After doing some research I found out that the cylinder heads on the pentastar engine in the 2012 and 2013 jeep wranglers were have many, many issues with the bad cylinder heads because of there was two different metals used between the engine block and the cylinder head causing it to warp and cause compression issues in the cylinder. Jeep was well aware of this problem but refused to this day to issue a recall. After the dealer took the engine apart to investigate, he admitted to the fact that it was a bad cylinder head. This misfire on cylinder 6 occurred mostly when idling at a traffic light or at very low speeds. The kicker in all of this even though jeep admitted a faulty cylinder head was the cause of the loss of compression, they refused to replace the cylinder head at their cost. Because jeep did not have my VIN number in their list to be repaired, it was up to me to pick up the cost. I did nothing in the time that I have had this vehicle (original owner) to make a cylinder head become warped. This was a problem with the pentastar engine from the beginning. Too bad jeep doesn't do the right thing and repair these pentastar engine issues at their expense rather than heaping more responsibility on the consumer.

Filed Mar 6, 2020 · Engine · 98,000 miles · GA

Tl* the contact owns a 2013 jeep wrangler. The contact stated that while driving approximately 65 MPH, when the check engine warning light illuminated and the vehicle decelerated to 20 MPH and loss motive power. The vehicle was taken to the local pepboys to be diagnosed. The contact was informed of a misfire on cylinder number 6. The contact was informed that similar vehicles were included in a manufacturer communications number: 10139897 (engine and engine cooling) warranty however, the VIN was not included. Five star chrysler dodge jeep ram of macon located at (3068 riverside dr, macon, ga 31210, (478)345-8899) confirmed that the VIN was not included in the warranty coverage. The manufacturer was not made aware of the issue. The approximate failure mileage was 98,000.

Filed Jan 31, 2020 · Engine · 99,457 miles · GA

Tl* the contact owns a 2013 jeep wrangler. The contact stated that while driving at various speeds, the vehicle would hesitate as the check engine light would illuminate. The contact took the vehicle to an independent mechanic for a tune up and the vehicle began to operate normally. Despite the repair, the failure continued to reoccur, the most recent time the contact took the vehicle to another independent mechanic where they stated that the cylinder assist had misfired. The contact was also informed that there was a recall for the air bag and that there had been a recall placed on the vehicle for her failure. The vehicle was serviced at five star chrysler dodge jeep ram of macon 3068 riverside dr, macon, ga 31210 where they informed her that the only recall on the vehicle was for the air bag. The vehicle had not been repaired. The failure mileage was 99,457.

Filed Jan 29, 2020 · Engine · 98,000 miles · NC

Tl* the contact owns a 2013 jeep wrangler. The contact stated that the vehicle misfired with the check engine warning light illuminated. The vehicle was taken to vann underwood chrysler jeep dodge ram dealer, (501 s madison st, whiteville, nc 28472, (910) 642-2000) and was diagnosed that the cylinder head number 2 misfired and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the federal safety agency. The failure mileage was approximately 98,000.

Filed May 30, 2019 · Engine · 75,000 miles · SC

Tl* the contact owns a 2013 jeep wrangler. While driving various speeds, the vehicle misfired and the check engine warning indicator illuminated. The failure occurred intermittently. Big o dodge chrysler jeep ram (2645 laurens rd, greenville, sc 29607, (864) 288-5000) diagnosed that the left cylinder head needed to be replaced, new bolts needed to be installed, and a coolant flush was needed. The vehicle was not repaired. The manufacturer was made aware of the failure and did not assist. The failure mileage was 75,000.

Filed Feb 20, 2019 · Engine · 84,000 miles · OR

Constant ticking noise coming from the top of the engine. This ticking noise is made from worn out rocker arms/ cam lifters as the camshaft rotates. The bearing material in the lifters is not hardened steel and can degrade. All 3.6l pentastar engines are affected by these defective rocker arms. If the rocker arms are damaged no code will show. The first sines will be a loss in fuel efficacy. As the camshaft wears down changing the displacement of the cylinders this will start causing misfire and stalling during normal driving/ acceleration. Eventually, ware debris can fall into the cylinder and damage the head. I first took my jeep to the dealership at 60k miles to diagnose. With no codes showing I was told everything in the engine checked out and the ticking noise was from the valves. Now at 84k miles one of the rocker arms is definitely failing and still not showing codes. The dealership will not cover replacement under warranty because the purchase date was 5 1/2 years ago. This is a known issue with the 3.6l pentastar. Chrysler has provided technical bulletins to visually identify defective rockers but are not providing extended warranty or recall on this part. While at the dealership the technician said they handle a lot of rocker arm replacements on pentastar engines, 5 to 10 a week! Chrysler should take responsibility for sourcing and installing defective parts in their engines.

Filed Nov 19, 2018 · Engine · 83,000 miles · NC

P0302 misfire cylinder 2. P0300, p0304 & p0306 jeep/dodge is very aware of this cylinder issue and has a service bulletin for several models. (journey, wrangler, 200/avenger, challenger, charger, grand caravan, durango and grand cherokee). And they will not recall this part. The only way to know if you have the problem is the service light indicator. So you car will not start if it malfunctions. Of course they want you to only have extended warranty to possible help. As of right now they will not assist with the problem.

Filed Jan 8, 2018 · Body, Engine · 70,000 miles · FL

Tl* the contact owns a 2013 jeep wrangler. While driving at 70 MPH, the check engine indicator illuminated on the instrument panel. The vehicle was taken to a local dealer where it was diagnosed that there was a misfire on the number two cylinder, and the coil and sport plug needed to be replaced. A service center repaired the vehicle, but the failure recurred two years later. The dealer information was not available. The vehicle was repaired again. The manufacturer was contacted and was unable to provide assistance. The failure mileage was 70,000.