78 Climate Control Fan / Blower
#1
78 Climate Control Fan / Blower
Hi from Hot Texas!
I had my 78 out for a little run over the weekend and it was 105 degrees outside. My A/C System (which I had recently replaced) was keeping me comfortable - not icey cold like my C6 but Still cool. Well low and behold - the fan just shut off.... I was still 30 Miles from home. I was not happy... especially since I had just rebuilt the entire system... including the A/C Control Unit in the Cockpit.
My question is this - what is the best way to test which component is causing the issue without buying the Relay, Resistor, Blower Motor, A/C Control Unit, etc... I did have a spare relay but it did not do the trick so I don't think that's it. My Compressor does come on when i turn on the A/C but the fan won't blow.... Is there a way I can test whether it's the fan switch on the A/C Control? Or the Resistor under the Hood? Or the Blower Motor itself? I can tell that replacing the blower motor will not be fun since i have to remove the Coolant expansion bottle and what a pain that is.
Any advice as always is greatly appreciated
Cheers ~ Joe
I had my 78 out for a little run over the weekend and it was 105 degrees outside. My A/C System (which I had recently replaced) was keeping me comfortable - not icey cold like my C6 but Still cool. Well low and behold - the fan just shut off.... I was still 30 Miles from home. I was not happy... especially since I had just rebuilt the entire system... including the A/C Control Unit in the Cockpit.
My question is this - what is the best way to test which component is causing the issue without buying the Relay, Resistor, Blower Motor, A/C Control Unit, etc... I did have a spare relay but it did not do the trick so I don't think that's it. My Compressor does come on when i turn on the A/C but the fan won't blow.... Is there a way I can test whether it's the fan switch on the A/C Control? Or the Resistor under the Hood? Or the Blower Motor itself? I can tell that replacing the blower motor will not be fun since i have to remove the Coolant expansion bottle and what a pain that is.
Any advice as always is greatly appreciated
Cheers ~ Joe
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MarksGoldie1986
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10-30-2013 09:31 AM