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P0455 leak not found Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine ODB2 Fault Codes naeem New User Oct 15, 2008, 6:53 AM Post #1 of 3 (2010 views) P0455 leak not found Sign In have 2000 explorer xls, 4.0, V6, SOHC, with 75,000 miles. check engine error code P0455, large emissions leak, triggered. diagnostic smoke leak detector used, no hose leaks found. had locking gas cap but original fuel filler cap was replaced for leak test. vapor canister purge valve behind left front bumper replaced. other than replacing fuel vapor storage canister, vapor canister vent, could the fuel tank pressure sensor or fuel level input device need replacing as well. thanks naeem way2old Veteran / Moderator Oct 15, 2008, 2:38 PM Post #2 of 3 (2004 views) Re: P0455 leak not found Sign In Did you try the test with your locking gas cap? You said you did the test with original cap. If you did not test with locking cap, there is a possibility the cap could be leaking. Being way2old is why I need help from younger minds naeem New User Oct 26, 2008, 9:55 AM Post #3 of 3 (1928 views) Re: P0455 leak not found Sign In thanks way2old. both gas caps were used for tests. no leak found. mechanic cleared error. check engine reappeared within minutes. gonna try replacing storage canister, canister vent, etc., then fuel tank pressure sensor. really hopin' its somethin' simple. thanks again.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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