Oct 23, 2013 · P0457 keeps coming up after I clear it. I replaced the gas cap and it's still coming up. I'm dropped my tank before and know what to do. My garage smells a little gassy recently too.What …

Jul 4, 2015 · The original poster was experiencing persistent P0456 and P0457 codes after replacing the gas cap, purge solenoid, and leak detection pump, and after a smoke test revealed no leaks.

Nov 24, 2015 · To fix Jeep JK EVAP error codes (P0455, P0456, P0457, or "GAS CAP" message), try these steps in order: 1. Replace the gas cap with an OEM Jeep gas cap. 2. Inspect the EVAP …

Dec 16, 2015 · P0455, P0456, P0457 finally fixed but expensive Jump to Latest 13K views 2 replies 3 participants last post by RoadiJeff Dec 16, 2015 D

Mar 22, 2012 · I was replacing the gas tank skid the weekend before last and managed to break my fuel pump in the process. So I replaced the pump last week, and a couple days later I got a check engine …

Mar 23, 2012 · The P0457 code indicates a leak in the evaporative emission control system, often related to the gas cap. While the code appeared after fuel pump replacement, the most common and …

Aug 30, 2017 · The P0456 code indicates a small evap leak in your Jeep Wrangler. Here's a breakdown of potential causes and troubleshooting steps: * **Gas Cap:** Ensure your gas cap is properly sealed …

Dec 11, 2014 · After a few days the check engine light did come on with the "P0457 EVAP System" light. I ordered a new factory gas cap, cleared the engine code - gascap" light came back on 5 seconds …

Apr 6, 2025 · Hey everyone, been fighting a P0455/P0456 code for the past year. I have a 2017 jku with 94k miles. The code first came on this time last year, I smoke tested the system and found the only …

Apr 15, 2022 · If you're experiencing EVAP leak codes (P0456, P0457) on a Jeep Wrangler JK, here's what to check, based on common experiences: * **EVAP Canister Filter:** Smoke coming from the …