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George H.
George H., ASE Certified Technician
Category: Oldsmobile
Satisfied Customers: 18700
Experience:  ASE Certified and dealer trained 15+ years
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My radiator/ac fan quit on my 2003 Olds Silhouette.I need to

Customer Question

My radiator/ac fan quit on my 2003 Olds Silhouette.I need to know where to hook up a toggle switch so I can turn it on when I drive.
Submitted: 1 year ago.
Category: Oldsmobile
Expert:  George H. replied 1 year ago.

Hello I will help you with your question,

Are you sure the fan motor is OK?

It is just the control for the fan that is the [problem?

Does the fan run if you turn on the AC or defrost?

Does the AC work?

Customer: replied 1 year ago.
the fan works when hooked up to battery directly,I just need to be able to turn it off after parking.
Customer: replied 1 year ago.
A/C works also
Expert:  George H. replied 1 year ago.

OK, there are two relays and two fans, the high speed fan should come on when you turn the AC on, does it?

Customer: replied 1 year ago.
Both fans came on when we hooked them up to the battery
Customer: replied 1 year ago.
Originally,there was 1 wire burned out on the main connector between y-harness and main engine wiring harness
Expert:  George H. replied 1 year ago.

If the high speed fan works leave it alone and just find the low speed wire in pin socket #6 of the blue C1 connector on the engine computer (PCM). Tie a wire into that wire (don't cut it) and to the switch, connect the other side of the switch to ground and it will turn on the low speed fan.

Be sure to turn the switch off with the ignition

Click here for diagram

I need to know if the fan comes on with the engine running and the AC ON, If it does only use the low speed fan connection.

Look that over and let me know how I can clear up what you need to do

Thanks

Customer: replied 1 year ago.
Thanks,showing this to my friend and will get back to you if needed.
Expert:  George H. replied 1 year ago.

OK, I need to go move a tank so let me know if you have questions

Thanks