The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

pontgta · 07-29-2012, 10:22 PM

So, i looked at the wiring schematic for my 87, and really this should be easy to trouble shoot. There is really not much that can blow that fuse. My fisrt guess is the blower motor, since you say that it will blow the fuse wioth the compressor wire off.
Turn on the AC with the truck off see how long it runs. If it blows, disconnect the blower motor and see if it blows the fuse again.

All your fan speeds work? Make sure all the the connections are good....i have seen loose grounds cause this issue..

07-29-2012, 10:22 PM	#5
pontgta Registered User Join Date: Nov 2009 Location: Haines City FL Posts: 461	Re: A/C blowing fuses So, i looked at the wiring schematic for my 87, and really this should be easy to trouble shoot. There is really not much that can blow that fuse. My fisrt guess is the blower motor, since you say that it will blow the fuse wioth the compressor wire off. Turn on the AC with the truck off see how long it runs. If it blows, disconnect the blower motor and see if it blows the fuse again. All your fan speeds work? Make sure all the the connections are good....i have seen loose grounds cause this issue..