1991 Chevy Lumina

1991 CHEVROLET LUMINA
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STEVE39
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Does anyone know where the temperature control sensor is on a 1991 Chevy Lumina with a 3.1L V-6????

Also need to know where the O2 sensor is on that vehicle too.



THANKS!!
Sep 20, 2007 at 9:04 AM
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SERVICE WRITER
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Coolant temperature sensor?
top left side of engine at coolant outlet.

The o2 sensor is in the exhaust before the converter, below the exhaust manifold.
Sep 20, 2007 at 7:21 PM
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STEVE39
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Thanks alot Service Writer. Swapped out the easier of the two for now (which was the temp control) and so far the engine is not dying at stoplights - really got to give it a few days though to see if that did the trick. Appreciate your accuracy!!! Looks like I need to jack the car up and get under the exhaust manifold for the 02 sensor. Anyway, THANK YOU!!!
Sep 24, 2007 at 10:16 AM
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SERVICE WRITER
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Glad I could help out....I had the easy part!


https://images.2carpros.com/forum/automotive_pictures/30961_bigsmilereptile_6.jpg

Sep 24, 2007 at 6:21 PM
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STEVE39
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mmm, well i dunno about 'easy', you had the smart part because 80% of this stuff is diagnosis!! Ill keep you posted on that 02 sensor though, I could find out real fast if your right about the 'easy' part!
Sep 25, 2007 at 1:46 PM
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