Five problems related to check engine light on have been reported for the 2014 Jeep Wrangler. The most recently reported issues are listed below.
The check engine light came on and it decodes to a cylinder misfire. I took it to the dealer and they said the cylinder had low compression. It is out of warranty and they want to charge me well over $2000 to fix it. I am reporting this because I found out this is a common problem in these engines, so much so that Chrysler issued a TSB on it, however the TSB only covers up to 2013 and mine is a 2014. Apparently they thought they fixed it, but perhaps they didn't get it quite right, or didn't cover enough years. See Chrysler Jeep TSB 09-002-14 for reference. Please note while this issue did not cause an immediate safety concern, my research indicates that not fixing it promptly will cause un-burnt fuel to pass through the engine which is likely to cause catalytic converter failure. Due to the extreme expense to fix this known issue, people will be unwilling or unable to pay to get it fixed right away, and that in turn could lead to various safety risks, not to mention pollution controls issues.
Check engine light. Mechanic told me it would cost about one thousand dollars for the repair of the oil sensor switch located inside the engine. The vehicle has about 31k miles and I'm the original owner. Please lmk if this is a common problem. (xxxx). My name is (xxxxx) vehicle is rarely used. At the time I noticed the engine light it had been sitting for about a week. Parts of this document have been redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
At about 30,000 miles while on a highway my Jeep suddenly smelled like it was burning and I lost acceleration on it. Took it to my life time mechanic and he told me that there was oil sludge everywhere on the engine. He changed the oil out, cleaned out the engine but didn't find any issues with the oil tank or hoses. A year later, now at 40,000 miles, my check engine light suddenly comes on. Mechanic reads a "misfire" error. He changes out all my spark plugs, the ignition coil and the plenum gasket. Cleans out the fuel injectors and the car is humming beautifully again. But 5 days later, again the check engine light comes on. Mechanic checks everything he did and can't find anything wrong. He researched and thinks it could be the exhaust valve seats being worn out. Recommends I take it to the dealership. Low and behold, they discover that a cylinder head needs to be completely replaced! apparently an issue they keep encountering frequently in this model. I've seen it posted on a bunch of threads regarding Jeeps. Thank goodness I was 4 days away from my 5 year warranty to expire when this happened!!!! I think there should be a recall on all the 2014 Jeeps to make sure this issue is resolved once and for all. My VIN did not show a recall per your system, but all 2014 Jeeps should be checked since it's occurring so frequently, and people will be out of their warranty soon with that year's model.
Oil pressure switch has gone out. My Jeep has less than 50,000 miles on it. The oil pressure is fine and yet I need to replace this $45 switch which will I'm being told will take 4 hours by the dealership to replace. This came on after my last oil change. Discovered the issue when my check engine light came on with a code 520. Parts manager stated this happens frequently and on cars with less tha. 10,000 miles.
The cel (check engine light) or mil has been turned three times (dtc code p2099). The dealer has not found the problem, the dealer review the vehicle and all is ok. The dealer changes the pcm (powertrain control module), but the problem continues, the cel (check engine light) light has become a turn.