2002ls1z Posted March 1, 2009 Report Share Posted March 1, 2009 Hopefully this is the last repair i'll have to make for awhile.... SES light came on and I got both of these codes. It has something to do with EVAP. Someone told me to replace the gas cap, which I did. The code came back. What could be the culprit? 2001 Buick Century Custom 3100V6 98k miles Quote Link to comment Share on other sites More sharing options...
BXX Posted March 2, 2009 Report Share Posted March 2, 2009 You need to have your evap system smoked to find the leak. P0440 is a small leak. Without smoking it, you will be pissing in the wind by guessing. From experience, youll prolly end up replacing the entire canister or a vent solenoid is leaking. So, take her to a shop. Quote Link to comment Share on other sites More sharing options...
slick Posted March 2, 2009 Report Share Posted March 2, 2009 Yes, have it leaked check. As Bob said, you will continue to run circles to find find the problem until you do. Quote Link to comment Share on other sites More sharing options...
2002ls1z Posted March 2, 2009 Author Report Share Posted March 2, 2009 You need to have your evap system smoked to find the leak. P0440 is a small leak. Without smoking it, you will be pissing in the wind by guessing. From experience, youll prolly end up replacing the entire canister or a vent solenoid is leaking. So, take her to a shop. Is this going to be another costly repair? I work for an auto parts company, so I do get a good deal on parts. This month i've: Replaced an EGR valve, flushed the tranny, replaced trans pressure control solenoid, replaced the starter.... Last month I had the LIM replaced, valve cover gaskets, new plugs, new wire, pcv valve. I really hope this is it for awhile. I'm spent out! Quote Link to comment Share on other sites More sharing options...
BXX Posted March 2, 2009 Report Share Posted March 2, 2009 Just take it to a shop or a dealer and ask for a diagnostic for the check engine light. See what they come back with. Just fix it yourself to save on further labor costs and parts markup Quote Link to comment Share on other sites More sharing options...
slick Posted March 2, 2009 Report Share Posted March 2, 2009 He doesn't work on his cars. Quote Link to comment Share on other sites More sharing options...
AL Posted March 2, 2009 Report Share Posted March 2, 2009 I think I just posted a thread about this code... Here... http://www.w-body.com/forum/index.php?topic=76473.msg1022040#msg1022040 I know its 0441 but its still EVAP... Start with the simple stuff first, like double check that the lines are attached Quote Link to comment Share on other sites More sharing options...
2002ls1z Posted March 2, 2009 Author Report Share Posted March 2, 2009 Good news. I had to add washer fluid today and I checked the evap thing off of the throttle body. One of the hose ends was cracked and disconnected. This must have happened when my new EGR was installed. I put the new hose on. All fixed now. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.