Couple Electrical things...
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Elder User
Joined: Feb 2000
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From: Temperance,MI
Couple Electrical things...
Hey guys, got a couple electrical questions for ya.
First one, my A/C dosen't engauge, The system is still full the pump isn't engauging it is not sending power to it, there a relay or just the switch that is bad? wiring is all good.
Second one, Cruise control mines a 92 so its the older style unit what is it a servo that goes bad in these? I can get the newer style(ones under recall) ones too if that would work whats the better way to go?
Thanks
Curtis
First one, my A/C dosen't engauge, The system is still full the pump isn't engauging it is not sending power to it, there a relay or just the switch that is bad? wiring is all good.
Second one, Cruise control mines a 92 so its the older style unit what is it a servo that goes bad in these? I can get the newer style(ones under recall) ones too if that would work whats the better way to go?
Thanks
Curtis
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Joined: Sep 2004
Posts: 484
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From: SC lowcountry
The ac clutch power goes thru the ac panel switch in defrost/bilevel/max and ac modes, thru the cycling switch on the freon accumulator the low pressure switch on the compressor and is controlled by some conditons by the PCM, overheat and WOT, I think. Check for 12 V to the compressor clutch with the ac on and running and work back. In 88 manual it says blower must be on for switch to close, Probably not applicable to 92 since blower always runs in later models.
Crusie - not familiar with all of 92 wiring; If you don't have brake pressure switch on master cylinder chek brake pedal switch and clutch if applicable. Servo is mounted on firewall in front of driver - i opened mine up and found the mechanical components frozen with corrosion just carefully lubed after freeing up the moving parts and it's been fine ever since. Check some older posts on cruise servo; I seem to remember one on swapping internal parts circuit board that gave some part numbers that might help.
Crusie - not familiar with all of 92 wiring; If you don't have brake pressure switch on master cylinder chek brake pedal switch and clutch if applicable. Servo is mounted on firewall in front of driver - i opened mine up and found the mechanical components frozen with corrosion just carefully lubed after freeing up the moving parts and it's been fine ever since. Check some older posts on cruise servo; I seem to remember one on swapping internal parts circuit board that gave some part numbers that might help.
Last edited by 95X15; Dec 30, 2005 at 07:33 AM. Reason: Second question
Thread Starter
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Elder User
Joined: Feb 2000
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From: Temperance,MI
Well on the A/C thats what I was saying its not sending power to the compressor to engauge it. I have been looking everything over, only thing that makes sense is the switch is going bad I have noticed with heat it isn't like it was last year.
Thanks on the cruise, I have to get that fixed driving down the highway holding my foot at 70 can get annoying.
Thanks
Curtis
Thanks on the cruise, I have to get that fixed driving down the highway holding my foot at 70 can get annoying.
Thanks
Curtis
