1997 Buick Lesabre emmsions code

MARILYNB

MEMBER
1997 BUICK LESABRE
6 CYL
FWD
AUTOMATIC
128,087 MILES

What does a 440 emmsion code mean. We fix on thing it goes along for 300 or so miles and get it agagin it ends up being a cracked rubber tube or so. It has happpened twice and this I reset. Doesn't run hot are anything

Monday, March 16th, 2009 AT 2:40 PM

7 Replies

MERLIN2021

MECHANIC
17,250 POSTS

Can be any Emmissions part failure, inspection is needed.

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Monday, March 16th, 2009 AT 2:44 PM

MARILYNB

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4 POSTS

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.

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Monday, March 16th, 2009 AT 6:45 PM

MERLIN2021

MECHANIC
17,250 POSTS

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!

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Tuesday, March 17th, 2009 AT 12:36 PM

MARILYNB

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4 POSTS

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

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Tuesday, March 17th, 2009 AT 9:15 PM

MERLIN2021

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17,250 POSTS

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.