We have classified the 64 complaints from 2014 Jeep Wrangler about POWER TRAIN into the following categories.
Oil cooler leaking
Transmission leaking oil onto exhaust pipe while driving. just started 2 days ago. leaked approximately 1 pint in 30 miles travel on highway. under side of vehicle covered with oil.
The oil cooler broke and is leaking oil all over my engine, transfer case and exhaust. jeep says it's common and they expect me to pay $850 out of my pocket for a plastic part that will fail again. shame on them. it was sitting in my garage and oil is everywhere on the ground. it's too dangerous to drive
2014 jeep wrangler unlimited. consumer writes in regard to gear stick moving/slipping while engine is running. *as the consumer stated the failure occurs on a daily basis. the warranty company could not duplicate the failure so, was unable to repair the vehicle. *js
Ticking noise from the engine on both driver and passenger sides. the noise becomes louder when the engine gets warm, especially when it is close to a wall or other vehicles. diagnostic from dealership says it is due to rocker arm failures.
Oil cooler/filter pools out oil because of plastic housing. this wears, cracks during routine oil changes. the oil pools and drips all over transmission housing, under skid plates and you simply lose all of your oil. no a good design, simply lazy by chrysler.
Approximately 8 months ago, i had my first experience with my jku shifting incorrectly while going up & down the streets which i live on in kailua kona, hawaii. i live on a volcano & thus the streets are at a great degree, up to 25% grade. my first experience with the transmission shifting on its own was coming up a street where i downshifted to 2nd gear....the jeep then shifted into 1st on its own and then upshifted to 3rd, then down to 2nd & then to 1st, all on its own. i then came to a stop sign & put it back into drive for automatic hoping that it would stop. for about 2-3 weeks after that, it seemed that the transmission slipped every once in a while & then nothing. it drove fine. i never took it to the dealership from that one or two instances. on 8/5/19 i took my jeep in for a regular oil change. kona kwik lube looked at everything & said that everything on the jku looked great. i then had to leave town for a week & upon return from the mainland, i had numerous drops (of what i thought was ...
For 2014, chrysler made a change to a part called the "oil filter adapter" which sits on top of the engine, under the intake manifold. there are now a parade of people with various chrysler vehicles that use the 3.6l reporting that the new part cracks, causing a major oil leak, potentially a fire, and can cause your engine to be drained of all oil. part number is 68105583aa and it applies only to 3.6l chrysler v6 engines. i purchased the jeep used and now have just over 60k miles - chrysler is refusing to cover under their "100k mile" powertrain warranty even though this is a known defect and i still have almost 40k miles to go before i reach 100k miles.
Jeep has a known epic failure is design flaw in its 2014 wrangler when it switched from a metal oil filter cooler housing to a plastic oil filter cooler housing. hundreds of cases of the part breaking/leaking oil all over lower engine and exhaust which is a fire hazard. my part leaked oil over an unknown amount of time because i live with a gravel driveway.....now dealer shows me "metal" like glow to oil which could be engine failure.....hundreds of cases
At 167414 miles found clutch slipping, troubleshot to clutch being saturated with engine oil. prior to the clutch slipping the oil filter housing cracked twice and replaced under warranty twice, suspected leak caused clutch to be saturated. dealer place dye in oil to verify leak is fixed. also trying to work with dealer to replace clutch at reasonable price sonce damage was caused by a warrantied part. while transmission was out also found transmission fluid leak from the input shaft seal i have asked dealer to fix this issue, but only recommended a transmission service, nothing to verify the leak and verify the input shaft is not scorned or damaged. will take to another dealer after being checked for the dye, on the recommendation of jeep customer service. photos attached show oil around clutch, bell housing coated with oil and the input shaft leak.
The mechanism of what happened to my vehicle is undetermined whether it was stationary or while driving. however i noticed a massive oil leak after driving. the entire under side of the jeep where the transmission and transfer case are were completely soaked in motor oil. after taking it to a jeep dealership, they diagnosed it to be a leak coming from the actual oil cooler housing. come to find out my vehicle has already passed its warranty coverage date. and after doing a little bit of research, it seems i'm not the only person who has had this problem with their jeep, not specifically just the 2014 models others as well. other than the complaints from individuals who have purchased a jeep, i have yet to find any comment from mopar, chrysler, or the jeep manufacturer themselves addressing the issue of having a plastic oil cooler housing. fyi its not that easy of a repair so it could be quite costly to some.
40000 miles and the rear main seal is already leaking bad. happened when i first bought it in 2016 and the dealer said nothing was wrong or leaking as i was loosing oil.. now it's leaking terribly bad and they won't cover it.
Oil filter/cooler housing leak. this is a common problem with 2014/15 penstar engines. happening around 50,000 miles or 5/6 oil change. leak causes oil to pool on top of engine and running down onto the exhaust and transmission pan. can leak as much as .5 quarts of oil in a short matter of time. this is a $600 fix at a dealer. research shows it is very common. something this common should not be put on the owners expense.
2014 wrangler has known faulty oil pressure sending unit sensor as there was a tsb on july 15, 2014 stating such. tsb # 18-034-14 rev. a and rrt 14-046. 1,000 miles short of the 3 yr, 36k mile warranty, but 6 months past the 3 year and jeep wants $411 to fix their known problem. jeep states since it is a sensor, it not covered by the longer powertrain warranty.
Oil filter housing started leaking with no warning or events occurring in the area. fast research states this is a commonly know issue that jeep is aware of but avoiding.