Well, after looking in the Owners manual (Doah) and learning how to READ, I discovered that the Auxillary Fan relay is located under the hood, passengers side, front fuse area, and is a 5-pin box type relay. I've tried several workin relays and can never see the passengers side fan come on! I found this information in another post on another web site and wonder if it applies:
GMMerlin08-12-2003, 06:37 AM
The cooling fans are controlled by the PCM and are turned on at a predetermined tempature.
The primary cooling fan turns on at 225 degrees and the secondary fan will turn on at 232 degrees. They should cycle....turn off when the temp cools off to about 215.
Found this info on a 94 cutlass at
http://www.automotivehelper.com/topic127061.htm
Any truth to this information as it pertains to our 91?
