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.![Confused face :confused: 😕](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f615.png)
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.
![Confused face :confused: 😕](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f615.png)
Thanks!