The oil filter/cooler housing has cracked and is leaking oil with less than 45,000

- Silver Spring, MD, USA

My check engine light came on after driving less than 5mi. I stopped and consulted the manual. I decided to proceed home after reading it is only urgent if light is flashing. I checked my obd and it read the code P06dd which indicated a problem with oil pump. My low oil pressure light did not come on. Dealership replaced a switch. Shortly after my light came back on reading the same code. Additionally, I smelled burning oil and car went to limp mode when at 3000 rpms. Dealership replaced oil pump finally. Shortly after, the car began leaking a lot of oil. Dealership replaced oil cooler/housing. Due to the constant problems and misdiagnosis I consulted several other dealerships and found out that they frequently see my vehicle type to replace cooler. Apparently, it is due to changes made on the 3.6 engines including a plastic piece that was formally metal. The dealership I had do the repairs, claim that the switch was the problem and everything else was coincidental despite me having the code for oil pump from day 1. at approx 45000mi it is uncommon for oil system failures however it seems to be common for this make/model/year at similar milages. Search forums about this problem.

- Evergreen, CO, USA

Parked vehicle on a slope in the mountains with the parking brake engaged. The vehicle is an automatic transmission and was in park. Immediately following all passengers exiting the vehicle, it slowly started rolling away, backwards. It traveled down a 4WD road a small distance before turning off and tumbling down the mountain. Luckily everyone had exited the vehicle and there were no injuries. Though we were parked on a slope, probably around 15 degrees, there was complete failure of both the park gear and the parking brake allowing a rollaway. The parking surfaces was a combination solid rock and dirt.

- Arvada, CO, USA

While on the highway (according to the Jeep dealership) my oil cooler housing cracked and leaked most, if not all, of the engine's oil into the coolant system. This occurred in 10 minutes and extremely overheated the engine from the time it happened to the time I was able to pull off the highway and safely park. The oil mixing with the coolant caused it to turn into a thick mud-like consistency that clogged up the cooling system and after letting it cool down I opened the radiator then a thick brown oily/coolant mixture seeped out of the radiator. So the radiator was holding pressure prior to bringing it to the dealership. The Jeep dealership replaced the oil cooler housing under warranty along with the radiator hoses but is now saying my radiator has a hole in it and not holding pressure and they are refusing to cover it under warranty, despite the Jeep not having any mechanical issues prior to a hole blowing open in the engine and leaking out oil. The Jeep dealership refuses to test the engine any further even though it ran for 10 minutes with little to no oil in it which most likely caused pre-mature wear. The Jeep dealership wants me to pay $800+ for a new radiator. I bought this Jeep 40 days ago from the dealership and it's still covered under the 100,000 mile powertrain warranty. They are trying to get my Jeep out of their dealership as quickly as they can by spending the least amount of time and money.

- Manassas Park, VA, USA

Transmission supply and return steel hose rubbed on transmission housing causing the steel hose to have a hole and leak transmission fluid. Hose did have a plastic bracket that broke over time.

- Eldon, MO, USA

Casting sand from the heads has contaminated the engine cooling system leading to my radiator and heater core becoming clogged with sediment.

- Sparks, NV, USA

Oil leaking from the oil filter adaptor housing per Jeep service department on 2014 Jeep Wrangler unlimited. The item is backordered and Jeep service representative advised my daughter not to drive the vehicle until it is repaired. Jeep service department told us that they would not pay for rental car or provide a car while the car sits at dealership waiting for repair. No idea when part will be back in stock.

- Wichita Falls, TX, USA

Summary: Oil cooler housing cracked. This occurred at less than 51,000. We were lucky that it happened in our garage rather then while driving the vehicle. The vehicle was unsafe to drive due to the oil leak and had to be towed for repairs. If we had been driving it could have caused engine failure. Covered under power train warranty but seems to be a common theme with the 2014S. Request research help

- Breaux Bridge, LA, USA

Oil cooler housing cracked. This occurred at less than 51,000. We were lucky that it happened in our garage rather then while driving the vehicle. The vehicle was unsafe to drive due to the oil leak and had to be towed for repairs. If we had been driving it could have caused engine failure. Covered under power train warranty but seems to be a common theme with the 2014S.

- Ellamore, WV, USA

Takata recall vehicle was in park noticed oil drops on concrete inspection under the Jeep showed no leaks went to Jeep forum discovered leak was at top, the plastic oil cooler was the problem, oil drips down into a V type reservoir so therefore when you take off at the reservoir full of oil now blows all under the motor. Went on to Jeep forum and noticed that the complaint had been done numerous times by thousands of people where the part before used to be made out of metal was now being made out of plastic so the part is faulty and needs looked into thank you

- Evansville, IN, USA

I noticed motor oil leaking from the bottom of my vehicle while parked. After the mechanic inspected it, it was determined to be a leak in oil cooler / filter housing after further investigation I found several car owners with the same damage in Jeep vehicles below 40K. Https://www.youtube.com/watch?V=srnnehjcxvy

- Atlanta, GA, USA

Oil cooling housing broke and oil sprayed all over the hot engine. The smoke was pretty intense and used a fire extinguisher in case the oil flashed off

- Houston, TX, USA

The oil filter housing has cracked at 18,000 miles

- Milton, GA, USA

Leak from the motor oil cooler housing, on the 3.6L pentastar V6 engine from a 2014 Jeep Wrangler. The oil cooler housing was revised in the 2014 model year from a metal part to a plastic part. Mine started leaking at 20998 miles. The leak is identified primarily by a pool of oil forming in the "V" at the base of the cooler housing, and motor oil running down off the top of the transmission bellhousing and around the transmission pan (automatic transmission). The leak is not a transmission leak, it is an oil leak from the motor oil cooler housing.

- Jacksonville, NC, USA

Jeep Wrangler effected. 2014 with 17000 miles the oil filter/oil cooler housing failed and leaked 3qts of oil in less then 24hours. The oil was changed 5 months prior to this problem and the dealer claimed the oil filter was put on to tight which caused cracks in the housing and would not complete the work under warrenty. After the repair I requested to keep the part that was taken out. After close examination and using compressed air to see if I could find a crack there was crack to be found. Only thing I could see that could cause a leak was a missing gasket on botton of house.

- East Taunton, MA, USA

My 2014 Jeep Wrangler unlimited is currently being serviced for a cracked oil cooler. The oil leak was first noticed while parked in my garage. I had taken my vehicle to a local shop and they diagnosed the problem as a cracked oil cooler. I was also told I was lucky there was no fire caused as there was so much oil. I was told it should still be under warranty. The vehicle is getting its normal services now and will be taken to the dealer tomorrow. I have googled this problem and there are many complaints of the same issue for the 2014 Jeep Wrangler.

- Nampa, ID, USA

Transfer case rear main seal leak as diagnosed by two different Jeep dealerships (Jeep of hollywood and massey yardley Jeep). I have taken the car in twice for repair and the leak continues (02/24/2017 [hollywood Jeep] and 03/08/2017 [massey yardley]). the car is in for reevaluation and repair as I am writing this making it the third time in three weeks the car is being repaired for the same issue (03/17/2017 [massey yardley]). this involves the motor oil in the vehicle and leaks regardless of whether the vehicle is idle or being driven. Once the Wrangler is driven the the oil heats up, and thins out, causing the oil to leak in larger amounts and faster. This is a safety issue because leaking oil can start an engine fire or too much oil lost can cause an engine to be damaged or even seize. Jeep corporate customer service has been notified of this issue and their "case management" team has been involved in attempting to resolve the issue, however, to-date all customer service reps indicate there is no recall or investigation into these issues. As an aside, the car was taken to the dealer, by the original owner (per carfax report), for transfer case related issues 11/18/2015. I implore NHTSA to investigate this issue as this has the potential to be a life threatening issue.

- Dania Beach, FL, USA

Oil leak being caused from cracked oil housing/casing/bellhouse. Similar issue amongst a large percentage of 2014 Jeep Wrangler

- Houston, TX, USA

The oil cooler under the intake, the Jeep has 68K miles on it, needs a third oil cooler, the dealership refuses to cover them under warranty, this has been an ongoing problem since the first year I bought the Jeep brand new. Every time they crack, out of the blue, no warning, the driver is stranded on the side of the road with six quarts of oil all over the motor, trans, exhaust and ground.

- Dickson, TN, USA

While driving, the vehicle, which was 3 days new to us, exhibited the classic Jeep death wobble. The vehicle started to violently shake from side to side and only stopped once the brake was activated. This happened 4 times before the alignment was righted and a part replaced.

- Verona, WI, USA