when i turn the air on it works great for about a half hour than it seems to go to heat the cental vents turn off and the floor vents start to go to hot air if i stop the car and than start it again in 5 min it goes back to air con again can any one tell what is happen i have a 1989 xjs v12 conv
Submitted by stevejag@sbcgl… on Tue, 07/05/2011 - 17:22
Submitted by browder@nuventrs.com on Tue, 07/05/2011 - 11:22
Bob,
One thing to check for your A/C going warm is the ground connection at the lower edge of the A/C control module. It's a spade connection that sometimes gets tarnished and causes a high resistance. Clean it up and make sure the circuit from it to ground has a very low resistance. In some instances I have run a new ground just to make sure that's covered.
Good luck!