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03-12-2007, 04:55 PM
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#1 |
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Registered User
Join Date: Feb 2007
Location: MS
Posts: 9
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check engine light
new member here, great messageboard (been looking for one for awhile)
i have a 00 GMC Seirra, and the check engine light is on, i have found out that its the 02 sensor and i was told it was 'both' of them, but my truck has 4 of them. someone told me the ones behind the cat convertor are the ones that make your light come one, if anyone can confirm this, it would be great. thanks. |
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03-12-2007, 10:27 PM
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#2 |
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sufficiently talented fool
 
Join Date: Jun 2006
Location: Forest Hill, MD
Posts: 2,231
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Re: check engine light
Any of the four will cause the light to come on. The most common is the upstream O2's. Usually the ones behind the cat will cause a cat. efficiency code. PM me the code # and I can tell you exactly what it is.
Welcome to the board from MD !!!!!
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03-13-2007, 09:05 AM
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#3 |
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Registered User
Join Date: Feb 2007
Location: MS
Posts: 9
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Re: check engine light
ill have to go up to autozone to find out what the code is, i can go ahead and find out from them which ones are bad. was just trying to save a trip from going up there, too bad those sensors are 75 bucks a peice.
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