2012 jeep sahara. Consumer writes in regards to tensioner arm and serpentine belt failure. *ld the consumer stated the vehicle lost its steering. The tensioner arm seized shredding the serpentine belt which lodged into the engine. The consumer requested to reimbursed for the repairs. Updated 09/25/2017
2012 Jeep Wrangler engine complaints
Page 4 of 7: complaints 71 to 100 of 179, newest first, as owners wrote them.
The heat shield between the muffler and gas tank has worn out where the nuts that secure it to gas tank contact the shield. The shield has clearly deteriorated due to normal driving vibration as there are no moving parts and the shield is not reinforced where the nuts contact it. I've had to add large fender washers to cover the worn thru portion of the shield but this will not be a long term solution as the plate will simply wear out where the new washers contact it.
Check engine light and hill assist always lit. Dealer constantly resetting and I was repeatedly told not to worry as it is probably "bad gasoline." now, no acceleration and is more pronounced when on an incline ie highway entrance ramp. Presently, one week into diagnostics and repairs with present diagnosis being "probably" cam shaft phasers. Important to note engine repairs previously done one month of ownership on brand new vehicle. In addition, engine light has been on while in warranty but told not to worry. Now, almost complete engine rebuild. Jeep will not assist even though engine light has been on and reported to dealer (and documented) while in warranty. Vehicle purchased brand new, never used "four wheeling" or utilized to tow. Mileage reflects ~ highway travel. Religiously maintained through dealership.
Tl* the contact owns a 2012 jeep wrangler. The contact stated that while driving at 55 MPH, the vehicle decelerated to 25-30 MPH independently. The contact stated that the engine was cycled off and back on and the vehicle performed as intended. The contact however stated that the failure recurred. The vehicle was taken to hanlees chrysler dodge jeep ram located at 4318 chiles road, davis ca, 95618, tel: 888‑349‑9763 to be diagnosed. The contact was informed that the cylinder head bolts were torqued incorrectly which caused a low oil pressure. The vehicle in turn went into limp mode to try to compensate for the low oil pressure. The contact stated that the failure caused the engine to be destroyed. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was contacted however; the contact was not offered assistance. The approximate failure mileage was 97,000.
The day after purchasing a 2012 jeep wrangler, on 5/4/2017, with 49000 miles, while driving approximately 45 MPH, an unusual ticking noise emitted from the engine with the illumination of the check engine warning indicator. The failure occurred until the engine was turned off. The vehicle was immediately taken to the auto dealership where vehicle was purchased for diagnosis. The technician stated that the failure was contributed to a faulty engine head and valve. The vehicle was not repaired. Problem has consistently happened for the last 2 months. Vehicle was taken to an authorized jeep dealership but they refused to give us a diagnosis or offer a warranty recall stating the recall wouldn't apply as the car is a salvaged vehicle. The engine light illuminated after this episode and has not come off ever since.
Driving at freeway speeds some bumps or uneven surface cause car to lurch. Engine shuts down to no throttle; this is very disconcerting for driver. Happens 2-3 times a month on such roads. I suspect the skid control. When that is turned off it does not do it. Jeep needs to fix this. Car recovers after 2-3 seconds but in meantime this could easily cause car behind to hit you. So far have been lucky this did not happen.
Tl* the contact owns a 2012 jeep wrangler. While driving approximately 60 MPH, a strong burning electric odor was perceived without warning. The vehicle was taken to the dealer (waterfront jeep in morgan town, wv) where it was diagnosed the that there was no indication of coil failure or an engine misfire. The manufacturer was not made aware of the failure. The failure recurred, but the vehicle was not repaired. The failure mileage was 66,386. Updated 10/24/17*lj
Tl* the contact owns a 2012 jeep wrangler. While operating the vehicle, the check engine indicator illuminated and the vehicle suddenly decelerated. The vehicle was taken to the dealer, kendall jeep in miami, florida, where it was diagnosed that the failure was due to an electrical malfunction. The vehicle was repaired by a local independent mechanic, but the failure shortly recurred. The vehicle was taken back to the dealer where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 58,000.
Oil cooling housing leaking,, was told the replacement part would be in 2-3 weeks,, I went ahead and paid for the part,, here it is 4/20/2017 and was told part is on part order.
This has happened twice, the first time I was on a city street and while driving approximately 40 miles an hour the engine stalled and I lost the power steering and braking. The vehicle was still moving, I put the vehicle in neutral and tried to restart the vehicle. It would not start. We pulled over and called the dealership. While I was on the phone with them, about 10 minutes later, trying to get it in a position for the wrecker, my wife tried to start it and it restarted. We drove it home and had a wrecker come get it because we were afraid to drive it 20 minutes to the dealership. They felt like is was the fuel pump and replaced it. I picked it up and it drove fine for a few weeks and did the exact same thing except this time I was on the interstate driving about 60 miles an hour and fortunately I was in the inside lane and pulled over. Tried to restart it and after waiting 10 to 15 minutes it restarted again. I drove it to the dealership where it is right now with them trying to determine the problem.
The vehicle power abruptly drops while driving losing anywhere from 100 to 500 rpms. If the vehicle is stopped at a signal or traveling at lower speeds the power drop will shut down the vehicle. The problem is random and very unsafe
I've spent $1500 attempting to fix the wobbling in my steering wheel, and the problem still exists. I've also spent $700 on a poorly designed rear oil seal. That is a known problem with jeeps.
While being towed by our rv on a city street, a fire started under the hood of the jeep. The transfer case was in neutral. The manual transmission was in neutral. The ignition switch was turned 1 notch to accessory to unlock the steering. The fire was extinguished by the fire department. No police report was filed because the fire was not caused by an accident. Because of the severity of the fire damage, no cause of the fire was determined.
Vehicle caught fire while I was driving and lost all power. Engine shut off and there was little ability to steer. As soon as I pulled over smoke started to come out from the sides of the hood. When I opened the hood, there were flames coming from the engine near the firewall. Luckily a police officer happened to be driving by. He quickly put out the fire using an extinguisher from his patrol car; had he not been there the car would have quickly been consumed. This happened a few days ago. Since that time I have done some research and I have become aware that this is an ongoing problem with wranglers for many years now. It's disappointing that chrysler has not figured out what causes these fires; had this happened while I was driving on a highway the lack of steering ability could have easily resulted in the serious injury or death of not just me but other drivers as well.
Tl* the contact owns a 2012 jeep wrangler. While driving approximately 55 MPH, a loud ticking nose emitted from the engine compartment. The failure recurred whenever the vehicle was in operation. The vehicle was taken to the dealer where it was diagnosed that engine cylinder number two misfired. The contact scheduled an appointment for the vehicle to be repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 140,000.
The cooling system had sand in it from the factory causing the radiator to burst, the transmission cooler and heater system to plug up and not work. There is a factory service bulletin acknowledging the problem and as I was stranded when radiator blew out could be a safety issue to be stranded in nowhere.
Tl* the contact owns a 2012 jeep wrangler. The contact stated that the cooling system stopped working and the check engine light illuminated. The vehicle was taken to a local dealer where it was diagnosed that there was casting sand in the cooling system, which clogged up the radiator, the water pump, oil cooler, heater core, and the cooling part of the engine. The dealer stated that all the clogged parts needed to be replaced. The manufacturer was made aware of the issue and stated that the parts were not covered by the warranty and that there was no recall. The vehicle was not repaired. The failure mileage was 62,000.
Vehicle engine light came on after starting engine and driving 30 feet from initial parked location. Vehicle was stopped and explosion occurred under the hood while driver was still in vehicle. No previous indication there was any issue with vehicle. Upon driver emergency exit of vehicle, further explosions and large flames engulfed the vehicle resulting in a total loss of vehicle within minutes.
Tl* the contact owns a 2012 jeep wrangler. The contact stated that while driving at an unknown speed, the vehicle hesitated as the engine warning light illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the passenger side engine head needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 23,500.
I'm being the only owner of this unit & I had changed the oil on time. A valve lifter is sounding very hard, I want to know if there's a recall for that matter, cause I know a bunch of wrangler with the same problem.
My car was manufactured wrong... My engine block is casting sand into my coolant system which then blows out my heater core and radiator. I have spent 5 months under warrenty trying to fix with issue but the jeep dealer and chrysler give me the run around. I was trying to get this fix under warrenty but all the run around I got from the dealers has caused my warranty to expire with no fix. I think I have bought a lamon of a car I only have 14k miles , my issue started at 7k miles. Now it is winter time and in driving my car with no heat. I have a new born baby on the way who will get sick inside my car. Jeep does not want to cover the cost of my repairs to replace the heater core and radiator also a complete flush of this sand coming from the engine. This is a hazard for me and my baby to drive around in this cold vehicle . This is a known problem but jeep\chrysler is trying their best to keep this quiet. Ill be trying to contact a lawyer soon or maybe a news station.
My 2012 jeep wrangler was being driven at 40mph when the clutch inadvertently went out. I am concerned that there might be a greater problem related to the flywheel and the related clutch assembly of these factory parts on this vehicle. I only use this vehicle to commute in the city and my driving habits are mild. I do not use this vehicle off-road and I live in the state of florida which is incredibly flat. The clutch and surrounding assembly should not defect at 40k miles.
I have a 2012 jeep wrangler unlimited rubicon, no modifications have been made to the vehicle. I bought it new and have had numerous problems with it from the beginning. The most recent problem has already been reported on this website by someone else. I was driving and the check engine and stability control lights both came on. Once this happens, acceleration is significantly compromised and the transmission continues to shift back and forth. I have a lifetime warranty on the vehicle and took it to the dealer. They replaced some sensors and told me it was good to go and come pick it up. Five minutes after I left the dealer both lights came back on. Took it back, they replaced some other parts and told me it was ready. Picked it up and within ten minutes both lights were back on. Took it back and they replaced the computer, I waited this time, they said those codes were gone although a new code was now showing up. Told me I could drive it and they would order me another computer. Yesterday, while sitting in the parking lot of the movie theater a bell started going off, the oil light came on, sway bar light came on, all of the gear position lights came on and the engine ran up to about 6000 rpms. I turned it off and it would not restart. After about 15 minutes it restarted and I was able to drive for about 2 minutes and everything came back on and the car would not go over 20 MPH. I made it home and a wrecker picked it up and took it to the dealership. I am waiting to hear what they think it is this time.
We have had multiple times where the engine will stall at idling or low RPM's. We have had the vehicle at the dealer 4 times now and of course they cannot diagnose the problem. Yesterday, they car would simply not start at all and it only has 28,000 miles.
Parked it at 7:30 pm and woke up at 2:30am and it was on fire
Approx 4 months and 3700 miles of having my 2012 jeep wrangler sahara unlimited, during regular driving all dash lights came on, the warning chimes were on, all gauges dropped and continued to flash, the vehicle slowed down and the lights remained flashing and flickering for about another 20 seconds I couldn't accelerate. This has happened over 30 times since then and almost caused a serious accident on the interstate. This still continues to happen regularly and after showing them 2 videos on separate occasions dealership says they can't duplicate the problem so there is nothing they can do. Now at 47000 miles my warranty is gone and this time when it happened the check engine and airbag remained on. I don't know if the two issues are related or are separate, but now it kind of "sputters and put-puts" when its in park and won't accelerate properly. Dealership wants $150.00 just to look at this issue again and tell me they can't duplicate the fault. This is a serious safety issue; it has never been driven off road, is garage kept, and not used everyday. I don't want my jeep to catch fire or continue to put me and my children in a position where when could get hurt because of these issues. If anyone else has had these issues any help would be appreciated.
I have had at least 100 times where my jeep has stalled and just stopped running. It has happened when I have slowed down, and has stopped in intersections. It has stopped when starting from a stop etc. I have had numerous manual transmission cars and this has never happened. It scares me , and makes me fear for my life. I have changed the way I drive because of it, with the fear of worrying my jeep will just stop running , when I pull out into traffic. I have had the switches in the car not work, and function erratically. Lights stay on, when turned off, after turning them off numerous times, they finally go out. I have had my breaks respond oddly, and get weak. I have had the heater not come on, then turn switch again and it works. Have had defrost some on when defrost was off. Numerous electrical functions, malfunction. I don't bother with jeep, as my mileage is over 36,000- no more warranty, but these things began, about a month or two into jeep ownership. These problems used to be infrequent, but now this power failure happens often. Some days it happens 4-5 times. Please help me with this matter, I do not want to be injured or killed, due to this problem. I also do not want my family or someone else's hurt ,because of it either. I started doing research about these issues and find I am not the only one, it is common. I also have a whistle in the brake line, vacuum I think??? It causes the breaks to not be strong at times. I have had my brakes completely replaced and this condition persists, it also seems many with my model of jeep experience this as well. All of the hinges on the doors are rusting from the inside out, as well, I see the paint bubbling up .
On or about the 10th of march 2015 I took my vehicle to the dealer because the check engine light came on. The dealer turned the light off and I made apt for a separate problem which was a recall notice. The dealer said they would take care of the engine light problem when I brought the vehicle back for the recall. When I took it back the dealer said the vehicle is now out of warranty as of the 14th of march. I advised I understand the date however I brought the vehicle in and you turned the light off now you are telling me I have to pay 180.00 to check the problem because warranty is over. Turns out there is a problem with the left head of the engine and the #4 cylinder is experiencing a misfire. I called the dealer where I bought the jeep, it is 400 miles away, I moved since the purchase, they advise there is a problem with the engine, they describe it and said it would be a warranty item which is covered for 6 years. I can not drive the vehicle 400 miles to have the repairs done and I need help with getting sahara chrysler jeep dodge in las vegas to repair the problem. The problem is (x56) 3.6 left cylinder head.
2012 jeep wrangler sport 3.6l vehicle does not start at random. Vehicle has stalled at highway speeds. All electrical will turn on but jeep will not crank over or make any attempt to start. Wipers turn on, their own. Battery, and starter have both been checked. Evidence leads to faulty tipm sensor but because the chrysler dealership can not duplicate the error after 5 tries they said they can not replace the tipm. Dealership states they can not just throw parts at it to fix the issue even with hundreds to thousands of other chrysler products having the same issue.
Bad left head, known problem with pentastar engine. Check engine light came on. Codes indicated misfire on cylinders. Inspection revealed a bad left head.
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