Coolant Leaking Problems of Jeep Wrangler

It started with a small oil leak that turned into a big oil leak coming from the oil cooler. The high the temperature the more oil that would come out. This oil is mixed with coolant as well. This is not safe because you never know when it's going to crack and they will not cover under warranty or extended warranty. This can be a real safety issue because you can lose oil pressure which can cause engine to fail.

See all problems of the 2014 Jeep Wrangler 🔎.

Leaking oil filter housing. It's a known problem and so widespread across Jeeps that there's a national shortage of the part. I can't even get it fixed. Oil and coolant are leaking everywhere. It's a danger to my family and the environment.

2014 Jeep Wrangler oil leak noticed oil on carport checked low on oil its an oil coolant housing crack have called for a month and a half cannot get part its on back order which is now up to 60,000 was told tighten bolt and keep checking oil I may be a female but it's not gonna keep being just a crack will end up tearing my Jeep up or cause accident its my only transportation was told by guy at dealership its made to go out when warranty expires it needs to be a recall on the part since it can cause more damage ## #vpic# 1 - check digit (9th position) does not calculate properly #vpic#.

The oil cooler/oil filter adaptor failed. This part is plastic and sits on top of the engine. . . . ! since 2014 this part has failed in many fca vehicles and when it does it leaks oil and coolant on top of a running/hot engine! in my case it failed and caused a loss of oil pressure which then damaged the cam shafts and O2 sensor. Luckily it was covered by warranty but when that runs out it's not only a safety issue but a very expensive repair for a failing plastic part that should have been recalled by now! the company should at a minimum extend the warranty for that part on every engine it has been used in.

Oil adapter housing cracked for the second time in 6 months. 1st time caused external leak and it was replaced. This time cracked again but internally causing oil to leak into coolant. Caused $3200 worth of damage and had to have coolant system replaced as well as heater coil and hoses. I know of 7 other Jeep Wranglers this has happened to recently.

Oil cooler had a major leak oil on top of engine was easily a quart. Rest of the oil had traveled down the transmission and covered almost the entirety of the engine compartment and exhaust. I noticed the leak by a strong smokey oil odor as the oil hit the exhaust. The oil cooler was replaced and must have also caused a leak in the coolant because the reservoir was near empty. Waiting to see if that was the cause of the coolant leak.

Engine coolant and oil sprayed the underside of the Jeep started smoking paid to have it fixed then 4 months later the coolant is starting to leak again. Was told the parts are cheaply made and I am better off ditching this Jeep before it catches fire.

Tl the contact owns a 2016 Jeep Wrangler. While driving 35 mph, the abs and traction warning indicators illuminated. The contact lost control of the vehicle and swerved off the road. The transmission revved and the rpms went all the way up. The vehicle was taken to premier cape cod Jeep (460 yarmouth rd, hyannis, MA 02601, (508) 815-5000) to be diagnosed, but the dealer would not service the vehicle due to the warranty issues and they were also booked for weeks with appointments. The vehicle was also taken to heller Jeep (635 mill st route 6, marion, MA 02738, (508) 748-0019) where it was diagnosed that the abs and traction sensors needed to be repaired. The dealer further stated that the engine overheated and leaked coolant and the transmission failed. The vehicle was not repaired. The manufacturer was made aware of the failure and did not assist. The VIN was unknown. The failure mileage was 17,978.

See all problems of the 2016 Jeep Wrangler 🔎.

With no leaks and less than 65,000 miles, the amount of heat produced through the vehicles heating system has been steadily diminishing to the point that it now only blows cool air. This condition is present even after the vehicle is up to operating temperature and has been in continuous operation. Research has indicated that a engine component manufacturing defect (casting sand residue) has directly caused this condition with the sand residue accumulating in the heater core and restricting/blocking the flow of coolant through the heater core.

See all problems of the 2013 Jeep Wrangler 🔎.

Significant oil leaking from oil coolant housing on the engine. Engine started smoking thought it was on fire. Shut off car imediately and sent car to dealership.

See all problems of the 2015 Jeep Wrangler 🔎.

When I first turn on the heater on cold morning, a maple syrup smell like antifreeze comes out of the dash vents. My coolant overflow tank looses about 1/4" coolant in 2000 miles. I believe there is a pin hole leak in the heater core. The dealer did a pressure test, but the leak must be too small to detect. The smell is nauseating and I understand antifreeze vapor is toxic. .

See all problems of the 2018 Jeep Wrangler 🔎.

My Jeep has less than 21,000 miles on it. I brought it in to the dealership for a coolant leak. They haven't found the coolant leak but they did find an oil leak from the oil cooler. This is the second oil leak from the oil cooler. Parts are on back order, I was told this is a frequent and common problem. They have not found the source of my coolant leak. This car is gently driven by my wife and is unmodified in any way.

I purchased a 2008 Jeep Wrangler 2dr 4x4 from frederico Dodge Chrysler in woodriver illinois on 04/04/2016. I was informed that the win module was defective and needed to go back to the dealer. Red light comes on while driving and the traction control lights comes on as well. I took it back and got issues with them and was told it was replaced. The red light and traction control light is still coming on while I am driving. (electrical issue). I was also informed that I have a rear main seal (engine) that is leaking and transmission coolant lines leaking ( transmission). I took back to them and was informed that there is a difference between a leak/seepage and that would not be covered under my 3000 mile/3 month (engine/transmission) warranty. I have only owned new Dodge vehicles and was treated with professionalism. I bought a used vehicle with the warranty given and was told that it was inspected and was treated like my problems were not there problem. I am asking that this maintenance issue gets resolved under my warranty. Thank you for your time. Respectfully submitted, john a. Ayers.

See all problems of the 2008 Jeep Wrangler 🔎.

I bought this used with only 54,000 miles on the engine. Within a year and at 65,000 miles, it began overheating and leaking coolant. My brother thought it was a cracked head or gasket. After tearing the motor apart and sending the head to be checked, two large cracks were found. The casting # is 331. My brother has been trying to find another head for me and was told by one of the sellers that he can't keep the parts in stock due to the high number of demand for this part.

See all problems of the 2001 Jeep Wrangler 🔎.

2001 Jeep tj, 40,000 miles, slowly losing coolant over the course of 4 yrs. Used a pressure tester and verified no external leaks. However, used the same pressure tester with engine running, per the instructions, and the system gradually built pressure from 18 lbs to 25 lbs before I stopped the test. This indicates coolant leaking into the combustion chamber. Currently my oil pressure is good and there is no coolant contamination on the dip stick or under the oil fill cap. At risk (long term) is the internal engine bearings: cam and crankshaft. I found a thread on the internet that covers many Jeep tj owners with the exact same problem of coolant loss. This is all due to a bad batch of cylinder heads with casting # 0331, manufactured from 2000 through 2006.

I bought the vehicle in may 07. 2001 Jeep Wrangler sahara with 4. 0l. @ months after buying the vehicle I lost oil pressure. Vehicle returned to dealership and the oil pump was replaced. Less than 500 miles I returned the vehicle to said dealer with a nasty internal engine rattle. Dealer replaced collapsed lifter and bent pushrod. Less than 100 miles later vehicle returned to dealer again with the internal noise. Vehicle torn apart and had the camshaft, lifters pushrods replaced. It has been 7500 miles since my last visit. I now have a slow coolant leak that is making its way into the oil system. I have removed the cylinder head and found a crack in the casting. The casting # is 0331. I have spent numerous hours researching this specific casting # and it is notorious for cracking and slowly leaking coolant into the oil system. My Jeep only has 71,000 miles!! this is an absolute let down and has tarnished my outlook on Chrysler and the quality of their products. The typical lifetime for these heads is between 60-85,000 miles. Do a search for Jeep 0331 on google, you'll see the overwhelming number of Jeep owners with this problem. Chrysler needs to be held responsible for their lack of quality and manufacturing and selling a defective product.

Had vehicle for three yrs and in December started loosing coolant and couldn't find the leak. I took it to Jeep and told them the head gasket is going . They said they would check it out and later told me it was a airpocket. I picked it up and ran it for another week, still losing fluid. This happened of and on for 3 times. On the 3 time of me taking it back they admitted the head gasket was shot and they had to replace the head. I went to take it home and 1/2 way there my engine started making horrible noises and jerking. I called the dealership and had it towed back the next day. They then told me due to coolant contamination the engine was ruined and had to be replaced witch was covered under warranty. I now have 3410 miles on new engine and it has started making noise. Took it back to Jeep and the will not cover the warranty saying I have water and dirt marks in airbox. These were in there when they first replaced engine and I am now seeking legal counsel.

I bought my Wrangler in October 2000, which was a new 2001. Up until this year, 2004, I have been losing coolant fluid from the reserve bottle. The dealership which the vehicle was purchased, bill deluca Chrysler, Plymouth, Jeep, inc. , in havehill, MA, tested it right through my warranty expiration. It was not until I broke down in CT, where another Jeep dealership, georgetown Jeep dealership, told me about a dye test should be performed. When I went back to my original dealer, I had to argue with them to perform the dye test, because they wanted to pressurize my Jeep. . . Again. When they performed the dye test they found the head gasket leaking and told me I had to pay for it. Eventually, through complaining the this problem should have been found on my previous visits before my warranty expired, they did a "good will" job. I still ended up paying a good portion. Two months later my engine seized and it was described, from deluca dealership, as a major engine failure and I would require a new engine. When they brought the problem to their chyrsler rep. , the person told them I only needed a short block and not the full engine. Though I was told I needed a full engine, I was only given a short block. I asked the dealership if I still had full engine warranty and I was told yes. As time went on, I was still losing coolant. I eventually moved to another state. When I brought it to a new Jeep dealership, georgetown Jeep, in norwalk , CT, they could not find anything at first. I gave them the okay to dismantle my engine to look deeper. What they found was a crack in my engine. They told me it was insane I did not receive a full engine. Chrysler and deluca refused to pay and I ended up paying $2000. I was told this crack was there for quite a long time and possibly upon inception of the vehicle. I have wrote to Chrysler and they still refuse to help standing by their original word. Customer service would not even help me after repeatedly calling.