Ami

I Was Wondering Where The Resister Is Because The Heat Only Works When It Is Full Blast I Have 97 Gtp OR CAN IT BE THE SWITCH

BNaylor

Do you have the HVAC with manual controls or digital climate control?

Manual has the blower motor resistor and digital has a blower motor control module.

The 97 Grand Prix has a hi-speed relay which happens to be located with the blower motor resistor or control module.

Here is a link showing a BMR:

http://www.clubgp.com/newforum/tm.as...9562974&cookie

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'08 Pontiac Grand Prix GXP (Liquid Silver Metallic) - LS4 5.3L V8
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AF Community Guidelines

richtazz

The AC-Delco part number for the manual control blower resistor is 15-80571 (GM#89018643). Dealer retail is $38.65. If you have any Delco distributors in your area, they will sell it cheaper than the dealer. We sell it for $20, just for reference.