Does anyone know the part number for the connector to the fan switch located on the pass head of the 91 305 TBI. Previous owner replaced the switch and distroyed the connector. I have a feeling this is why the fan is not coming on. Replaced the switch, relay and fan motor, only way the fan works is to take the relay out and jump from red + to black red wire.

 

I couldn't tell you the GM part number, but there are various vendors that sell new fan switch connectors. Just so you know, the connectors for the fan switch and the knock sensor are the same thing:

http://tpiparts.net/inc/sdetail/772
http://www.turbocity.com/product_inf...products_id=88
http://www.rosesandwrenches.com/conn...tors&UID=10037

 

Thanks that helps out alot. Now if this solves the problem....

 

Thanks, this is exactly the info I needed. My fan switch connector (the original) broke apart today while I tried to take it off.