The 1985 Eldorado as you know, has a digital climate control. If I put it at 72, the heat will go way beyond 72, and if I put on the a/c, I have to turn it down to 68 to get the a/c to kick in without any heat mixed in. Could you tell me what you think the isue is? If you think you do know, I'd appreciate a cost estimate for the repair/adjustment. Also, while the vehicle is low milage, it does not have the pickup it should have, Any suggestions on how to improve the pickup on the engine?