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Today I will be showing you how to replace the thermostat assembly on a 2012-2017 Jeep Wrangler with the 3.6L engine. Common issues are check engine light for code P0128, stuck shut thermostat causing engine to overheat, and the thermostat housing leaking coolant.
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David,
Where do you get the abrasive wheels you use to clean the aluminum gasket surfaces? Can you provide a link. Thanks
I had a code on my 2017 Jeep with 3.6 Pentastar . The was in referance to engine not getting to Temp. I research and found that the thermostat was more than likely the cause so I remove the thermostat as per a previous video you done. I found that in fact the thermostat was in fact open even though it was at ambient temperature. I got one from O-reilys and installed it. I check over a three day period, when the system was cold the fluid level. I found on the third day the system was full and did not require any additional fluid. within 4 weeks the Jeep began to overheat at high RPMs. I felt intuitively it was the new dorman thermostat, I removed it and since it was warm outside I didn't throw a code the Jeep did not over heat, I went to auto zone and acquired a new duralast and installed almost to the day the same thing happened. I try to check the thermostats in boiling water but neither opened. I saw your video on the metal thermostat housing and noted the quality of build. I'm hoping this is the fix otherwise I'm up a creek..
@MotorCityMechanic I had to replace the cooling thermostat on my Pentastar engine in my ‘12 Chrysler 200 Touring convertible because it was sticking open. It’s a good thing that I have a slim build because there was very little room around the thermostat on that transverse mounted engine. I had to rely on the Torx cutout in the inside of the 10mm cap screws in order to tighten after replacing the thermostat.
Great video, much appreciated
I have no 3.6 but appreciate your videos,knowledge and expertise. Great video
Pretty easy. The alternator on backwards made me give it a second look the first time I saw one.
Worked on any grand wagoneer yet?
Thank you video my brother-in-law just bought a new Jeep Wranger with 3.6. Only problem he drives highway a lot already broke windshield from rock
what is your opinion of the engine cover me personally waste of money and holds heat in the engine and isnt needed for any reason