88 c68 help
Thread Starter
4th Gear
Joined: Aug 2013
Posts: 4
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From: haskell ar.
88 c68 help
I bought a wrecked 88 last year and have no blower fan or A/C. I replaced the head unit and nothing. This car has been converted to a carburetor setup. I can use a jumper wire and make the compressor clutch engage and the blower motor run. Does the A/C programmer above the accelerator pedal control the fan as well as the other functions of heat/cool? Any help would be appreciated!!
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
I bought a wrecked 88 last year and have no blower fan or A/C. I replaced the head unit and nothing. This car has been converted to a carburetor setup. I can use a jumper wire and make the compressor clutch engage and the blower motor run. Does the A/C programmer above the accelerator pedal control the fan as well as the other functions of heat/cool? Any help would be appreciated!!
The large red wire on the 2-pin connector is the 12 volt supply. It comes from the positive battery cable on the starter solenoid and has 12 volts on it all the time. There is a fusible link at the starter solenoid end.
The HVAC programmer mainly controls the various vacuum actuators in the HVAC ducting that determine where the air comes out. It also controls the blend door motor that determines the temperature of the air coming out of the ducts.
Team Owner
Joined: Jan 2003
Posts: 20,316
Likes: 246
From: Summerland B.C. Canada
Some help from my 86 service manual 
http://members.shaw.ca/dankai/HVAC%20Electrical.pdf
http://members.shaw.ca/dankai/HVAV'S.pdf
http://members.shaw.ca/dankai/HVAC%20Electrical.pdf
http://members.shaw.ca/dankai/HVAV'S.pdf
