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Tin Wheel Cover

1988 C1500 Where is the Heater temperature door actuator

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I think i can hear the Temperature Door Actuator  Motor run for a few seconds every few minutes even when the key is off and the truck is sitting cold overnight. What the heck? I think its gonna run my battery down.

Does anyone know where the Temperature Door Actuator is under the dash? I'm thinking it's inside the the actual HVAC box not underneath it like on the 1994. I've owned the truck since 1995 and know a fair amount of the problems these 1988 thru 1992 have and fixed many things on mine in all those years but this is new for me. Thanks for any help you can supply.

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On my 1993 the temperature actuator is in the middle area of the dash. You can see it after removing the radio and radio bezel. I also removed my glove box to give me more access to it.

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