Eggdashure
New member
Hi all,
My 2012 JKUR 3.6L Pentastar was leaking coolant profusely from the back side of the engine (both sides). I diagnosed the issue to the Oil Cooler and ordered a replacement. I studied manuals and watched YouTube videos in preparation of the repair. I worked my way down through the engine, and managed to get the Oil Cooler out and the new one in. (The old oil cooler had a split on one side that was leaking coolant.)
It was recommended that I replace the spark plugs while I had everything open, so I did that as well. While pulling the coils out, one coil separated from the boot. I got the boot out and it fit back on the coil pack properly so I continued and reinstalled it.
Then I buttoned everything up, did a quick oil change and thought I was good to go. When I turned the Jeep over, it sputtered and was running really rough so I turned it off and waited about 10 minutes. I came back after 10 minutes started it again and it seemed to startup just fine. Then I tried putting it in gear and heard a weird knocking and 'poofing' sound, almost like a misfire.
I suspect the coil pack that broke apart might be the issue, but I'd like some thoughts on if I missed a connector or something else.
The Jeep threw a ton of codes:
P0123 - Throttle Position Sensor
P0108 - Manifold Absolute Pressure
P0222 - Throttle Position Switch
Appreciate any thoughts! Knowing my luck, I'll have to pull it all apart again.
Thanks!
My 2012 JKUR 3.6L Pentastar was leaking coolant profusely from the back side of the engine (both sides). I diagnosed the issue to the Oil Cooler and ordered a replacement. I studied manuals and watched YouTube videos in preparation of the repair. I worked my way down through the engine, and managed to get the Oil Cooler out and the new one in. (The old oil cooler had a split on one side that was leaking coolant.)
It was recommended that I replace the spark plugs while I had everything open, so I did that as well. While pulling the coils out, one coil separated from the boot. I got the boot out and it fit back on the coil pack properly so I continued and reinstalled it.
Then I buttoned everything up, did a quick oil change and thought I was good to go. When I turned the Jeep over, it sputtered and was running really rough so I turned it off and waited about 10 minutes. I came back after 10 minutes started it again and it seemed to startup just fine. Then I tried putting it in gear and heard a weird knocking and 'poofing' sound, almost like a misfire.
I suspect the coil pack that broke apart might be the issue, but I'd like some thoughts on if I missed a connector or something else.
The Jeep threw a ton of codes:
P0123 - Throttle Position Sensor
P0108 - Manifold Absolute Pressure
P0222 - Throttle Position Switch
Appreciate any thoughts! Knowing my luck, I'll have to pull it all apart again.
Thanks!
