1997 Chevy Blazer Check Engine Soon Light

MLAIR90362

MEMBER
1997 CHEVROLET BLAZER
6 CYL
4WD
AUTOMATIC
75,800 MILES

At around 75,000 miles my check engine soon light came on. Colling is fine, belts are fine, oil pressure is fine, engine is running fine. I assume it has something to do with a programmed emission check. I do not want to spend any money on the car as it is going on 13 years old (yes it is really 75,000 miles). How do I reset the engine light?

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

You have a problem within the engine management system that's causing the CEL to come on-Go to Autozone and have the computer scanned for codes/ its a free service to the public. This is your starting point identifying what's really going on and comeback with the codes so we can continue to assist you-Who knows could be an oxygen sensor problem that's popping the light

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Sunday, September 13th, 2009 AT 5:50 PM

MLAIR90362

MEMBER
2 POSTS

Auto Zone said was code PO740. What does this indicate and what is the most llikely cause at 75,000 miles? They say it is a transmission fault.

Is this going to be expensive? I don't want to spend a lot of money on this vehicle.

Is it easy to check to see what it is and is it something I could do?

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Sunday, September 20th, 2009 AT 8:54 AM

RASMATAZ

MECHANIC
75,992 POSTS

You can try change changing tranny fluid don't work you need to get the Transmission Converter Clutch solenoid checked out its inside the transmission

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Sunday, September 20th, 2009 AT 12:46 PM