2003 P0455 Gross Leak Code Suburban
February 18th, 2011, 8:55 PM
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2003 P0455 Gross Leak Code Suburban
I have a 2003 Chevy Suburban that has a P0455 code that I have cleared 2 times at an Auto Parts Store. I replaced the fuel cap, did not help. Any help with troubleshooting ideas, any pictures of Evaporative Canister location, Vent Solenoid, Purge Solenoid would be appreciated.
Last edited by Steinwayflyer; February 18th, 2011 at 9:07 PM.
October 24th, 2011, 4:47 PM
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I discovered 3 - error codes P0442, P0443 & P0455 after taking my 03' Suburban 1500 5.3L 2wd to get smoged. Went to my mechanic who did a smoke test found leaks on both (cracked vent/rollover valves) from the top of the fuel tank. Fuel tank replaced, $1,100 dollars later code P0455 came back after a week or two . Back to mechanic discovered bad contact where the wires connect to the molex connector to the canister purge control solenoid while moving wires around because it would work then not work. He ordered the connector, I replaced it myself. Took it back so he could clear the code. Code back (P0455) after a week or two. I replaced the gas cap with an OEM. Took it to my friend who read and cleared the code. Code was back after a couple weeks. Where do I look next? Please help I'm going crazy. I really need a DIY fix cause I'm running out of cash....
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