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General Motors' GMT400 platform.

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fuse found on floor not where it was suppose to be

I got in my truck and found a big fuse on the floor in my truck.

The fuse has a number on it that number is ( 12077864 HOO ).

Ive look everywhere and I have not found where it go's .

Dose anyone know where it belongs??????


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The part number is for the blower motor (heater) relay for your vehicle. (To prove it check if your heater fan works or not if not that is it)

Here is a video where I think that it is located. At 51 seconds into the video you can see the relay just to the right of the wiring looms.

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