K5 Blazer 1969-1994
While this model ended its run, it is not uncommon to see them on the road or off, years after production end.
Platform: Truck, GMT 400

speed control/compressor fuse blowing 90k5

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Old September 21st, 2007, 10:24 PM
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Default speed control/compressor fuse blowing 90k5

can anyone figure out why the fuse 25amp that the a/c defrost and speed control module that controll the rear wheel antilock keep blowing. switch the heater control to a/c or defrost it blows leaves me with no speedo and error on computer is 24 no speed input.
i changed the whole a/c unit converted to 134a . checked the wiring and all looks good.it seems when the compressor iss turned on it blows but the problem is not there can it be a wire short , a drac problem.
can anyone figure it out
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