1997 Buick Lesabre emmsions code

Can be any Emmissions part failure, inspection is needed.

sir I didn have an inspection it passed then teh check engine light came on ,,,and then I took it to have test run at advanced and recieved this 440. when you say inpection where besides to the looney farm should I go next.

By inspection, I don't mean the State inspection sticker, I mean you nead to have the emmissions checked with a scan tool that can command the parts to function, and or a smoke machine that detects leaks in the system, most garages can do these repairs. A P0440 is non descriptive of the exact part failure, so it is most likley a cracked part that is loosing pressure. Meaning a hose or plastic part. Inspection of these parts is what it needs!

thnak yo so much this was very very helpful. Do you teach classes for yourng ladies and women..basic car matintiancce and trouble shooting..even changing tires if so how much

Thank you for the kind words, we just plug away at the keyboard, If you happen to see the Admins online, (Orange), PM one of them, I live in Mass, HQ is in Cal.

Woll do ...you guys are awesome got an older mechanic using hte computer you proved his oldschool concern was correct and he is going bit by bit fixing it one was a cracked hose.

Good, let me know how it turns out.