Under the dash there is a blend door motor that changes the temp like the passenger side. It can be verified with a scan tool, if you have one, or by a shop with the necessary tool.
It is not as simple as throwing parts at it and shooting from the hip from my end since I cannot see or touch the car. Thats why it needs to be verified by someone so the diag is correct.
Roy
Tuesday, October 30th, 2012 AT 10:51 AM