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03-24-2011, 09:19 PM | #1 | |
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Join Date: Mar 2011
Location: troy, Tennessee
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03 trailblazer with 0442 DTC
My 03 trailblazer is throwing a 0442 code and putting the SES light on. I think this is the right number it gave me. It was the EVAP system small leak detected. What causes this and how do i fix this? It just started doing this. It came up about 1 month ago, throwed the light on. About a week later it went off. Now it has came back on again. Thanks for any help.
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03-25-2011, 06:45 AM | #2 | ||
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Re: 03 trailblazer with 0442 DTC
Quote:
If that is right code no. and it comes back. Next step is to test /or replace the gas cap and make sure sealing ring is good and not dirty and gas tank filler neck is good and smoth with no dirt or rust on it. Never fill up with engine running. Do not over fill/top off and do not run tank on empty. Keep 1/4 tank or more in it.
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Remember proper testing gives us the answer to many problems. MT |
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03-30-2011, 12:09 AM | #3 | ||
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Re: 03 trailblazer with 0442 DTC
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03-30-2011, 07:09 AM | #4 | ||
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Re: 03 trailblazer with 0442 DTC
Quote:
Glad to help. I am starting to see a lot of bad seals on the gas caps. Best to get your cap from the gm dealer paqts department. Good luck and let us know nhow it goes.
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Remember proper testing gives us the answer to many problems. MT |
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