check engine lite on
Thread Starter
Intermediate
Joined: Aug 2009
Posts: 39
Likes: 0
From: dearborn heights mi
check engine lite on
two weeks ago the check engine lite came on ,i had it checked and they said it was my gas cap,changed it,today the check engine lite came on again,had it checked, they said it could be the canister purge vavle solenoid,but before i change it to get a smoke test,what do you think?
and where is the canister purge valve solenoid located? im driving a 2002 c5,thanks
and where is the canister purge valve solenoid located? im driving a 2002 c5,thanks
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Once you get the codes off the DIC (H=history, C=current), then check here to begin narrowing down the problem(s)...
http://www.stengel.net/diccodes.htm
http://www.stengel.net/diccodes.htm
Tech Contributor
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
Pull the codes using the link above. Write them all down including the H or C or HC that follow the code.
If you have more than 6 or 8 codes, clear them all (info in the link on how to do that) and then drive the car a bit and then pull the codes again. Those that come back are the one you need to deal with.
If you have more than 6 or 8 codes, clear them all (info in the link on how to do that) and then drive the car a bit and then pull the codes again. Those that come back are the one you need to deal with.
I'm assuming based on the diagnoses that you have a code for an EVAP leak; telling us which one it is will help. I HATE it when shops just throw parts at a car until you get the problem fixed without employing proper diagnostics... When you replaced your gas cap did you use OEM or aftermarket?
Also, before you do anything else or pay anyone else for any diagnostics pull your driver's side fuel rail cover and locate the plastic braided evap line that runs along the motor. near the coil packs. That line has a small green screw-cap in it (it may be grayish looking due to discoloration over the years) make sure it's screwed on firmly. I've seen a couple of those that have come loose all on their own and as a result the cars threw EVAP leak codes. While you have the cover off inspect that line for cracks and/or breaks.
Also please post ALL of your DTC's and be sure to include the H or C suffix that follows them.
