P0455 Evaporative Emission Control System Leak Detected - Chevy Colorado & GMC Canyon
 
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post #1 of 5 (permalink) Old 06-09-2011, 06:57 PM Thread Starter
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P0455 Evaporative Emission Control System Leak Detected

P0455 Evaporative Emission Control System Leak Detected (gross leak) - Not too sure what I should be looking for. Came on this morning, I scanned it when I got home. I did gas up at a new gas station(and different brand) on the weekend. Something I should clean maybe?

2006 Colorado Ext Cab 4X4 Z85 auto 31's I4 2.8
2003 Toyota Echo (wife's)
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post #2 of 5 (permalink) Old 06-10-2011, 09:14 AM
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Re: P0455 Evaporative Emission Control System Leak Detected

# 1 cause ----- bad or missing fuel cap.

#2 cause ------ bad purge solenoid.



Good luck to ya!!

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post #3 of 5 (permalink) Old 06-10-2011, 11:02 AM
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Re: P0455 Evaporative Emission Control System Leak Detected

Check the solenoid under the bed, looks like a soup can with a hose running into a rectangular black box near the spare tire. just pull the hose and canister off the rectangular box, clean it up and test the solenoid.

I had the same problem and ended up having to get a new one.

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2006 4x4 Z71 3.5L Crew Cab Colorado
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post #4 of 5 (permalink) Old 06-10-2011, 12:40 PM
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Re: P0455 Evaporative Emission Control System Leak Detected

Quote:
Originally Posted by BennettCKM
P0455 Evaporative Emission Control System Leak Detected (gross leak) - Not too sure what I should be looking for. Came on this morning, I scanned it when I got home. I did gas up at a new gas station(and different brand) on the weekend. Something I should clean maybe?

Just look at the rubber gasket on the gas cap and go from there. This code is sensitive to that item leaking and not sealing well.
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post #5 of 5 (permalink) Old 06-11-2011, 07:29 PM Thread Starter
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Re: P0455 Evaporative Emission Control System Leak Detected

I cleared the code... it came back 2 days later. I believe it is the fuel cap, I can hear the air when standing near the gas cap with the truck running. A friend said if the truck is under warranty, you can just walk into a dealership and they'll give you a new cap??? I also noticed when putting the cap back on I should let it clock once... I'm used to my wife's echo that you should hear it click several times before it seals... thanks guys, I'll keep ya posted.

2006 Colorado Ext Cab 4X4 Z85 auto 31's I4 2.8
2003 Toyota Echo (wife's)
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