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Automatic climate control 700 1986

posted by  someone claiming to be andyrewj44 on  Fri Jan 29 10:18 CST 2010 [RELATED]

I recently purchased an 86 760 for $300 because it would not boost. After I tightened 2 bolts on the blowoff valve to stop the leaking boost air it runs great. I have found answers to all of the other minor issues it has except for one. When the automatic climate control is in auto it will not start working for around 15 minutes, then it works normally. It works if it is in the defrost position and there is heat within a couple minutes so I know the coolant is warm enough. It acts like the coolant temperature sensor is bad or maybe dislodged from it's mounting and not reading the temperature correctly. Once it starts working in auto it does not quit unless the car is shut off and cooled down. Has anyone had or heard of this issue? Where is the coolant temperature sensor for the ACC located? I found one post that says something vague about it being on the heater core. If so, is it accessible without pulling the core? Thanks.






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