GM "P0455 Large EVAP Leak" - What To Check When It's Not The Gas Cap

Come along with Eric O. and have a look at this 2008 Pontiac Torrent 3.4 with a "P0455 Large / Gross EVAP Leak." Now this a very common problem and is often misdiagnosed as a gas cap or a canister vent solenoid. In this video we have a look at the whole system from the canister vent, fuel tank pressure sensor and the often over looked purge solenoid.

GREAT EVAP VIDEOS FROM "WELLS TECH"

Wells TechConnect Ep.20--EVAP Leak Problem, But No Smoke is Found! (P0442, P0446, P0455) -    • EVAP Leak Problem, But No Smoke is Fo...  

Wells CounterPoint Ep. 19 Evap System Problems...Where to Start (P0455, P0440, P0442) -    • Wells CounterPoint Ep. 19 Evap System...  

Wells CounterPoint Ep. 26 - P0446 Vent System Performance - Diagnose & Fix it Right the First Time! -    • Wells CounterPoint Ep. 26 - GM P0446 ...  

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