p0300

Ok I have a 2018 Jeep Wrangler JLU 3.6L I got the P0300 and P0171 a few months ago and have tried multiple different things but here’s the run down. I replaced the upstream BANK1 O2 sensor, top and bottom intake seals, fuel injectors, PCV and EVAP control, performed a Smoke test and am still...

2018 Wrangler JLU - 67,000 Miles - 3.6L Automatic ** UPDATE 08/14/25: Got worse, Coolant tank is empty. Bore scoped the cylinder to find a pink pool! Head gasket job next. Ill keep updating this thread. **UPDATE 08/04/25: Used Jscan to do a CAM RELEARN and clean Cam Phasers, Replaced Cyl3...

I have a 2018 Jeep Wrangler JL SportS with 64k miles on it. I am the sole owner and had it maintained well. Back in December 2023, my JL started ovrheating and the dealer had the radiator replaced (attributing to a leak). Then in February 2025, the jeep started overheating and upon checking the...

Hello all, I have a 2019 jeep wrangler 3.6l that has recently developed some issues @134k miles. I'm getting codes p0300 p0174 and p2098. I read about the oil leak on the passenger o2 sensor so replaced both up and downstream on the passenger side and that didn't fix my problem. After some more...