1998 Blazer P0442
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Starting Member
Joined: Mar 2016
Posts: 1
1998 Blazer P0442
I have 1998 Blazer with a P0442 error code.
I replace the purge & vent valves and still have the check engine light on.
Can I check the charcoal canister by putting a bypass temporarily in, to see if it'still leaking, before I buy a new one?
I replace the purge & vent valves and still have the check engine light on.
Can I check the charcoal canister by putting a bypass temporarily in, to see if it'still leaking, before I buy a new one?
New Member
Joined: Mar 2016
Posts: 16
I have a 99 blazer and the charcoal canister is right behind the rear driver's side tire ! did you change the gas cap and see if that helps ? mine had a e-vap code but I cleared it by disconnecting the battery for about 1/2 hour and the check engine light never did come back on !
Moderator
Joined: Mar 2009
Posts: 8,453
From: Belleville, Michigan
Welcome to the forum! As you're finding out, guessing gets expensive 
Best to follow the flow chart, then you'll know what the problem is: https://blazerforum.com/forum/diagno...plained-35144/
Best to follow the flow chart, then you'll know what the problem is: https://blazerforum.com/forum/diagno...plained-35144/
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