Yesterday the temperature gauge on my daughters car would not move. It never came off the cold setting then the service engine light came on. When she called Onstar the told her there was a engine coolant problem. I met her and checked the reservoir and there was antifreeze in it. The car was not overheating so I gave her my vehicle and drove hers home. I stopped at an auto parts store and purchased a temperature sending unit and changed it when I got home. Started the car and still had engine light and no movement on the gauge. Also, the AC will not cycle. I then disconnected the battery to reset the computer and re connected. Started the car and all was fine. Gauge worked, AC worked so she took the car home. On her way home she called and stated gauge did not come off cold again but no service engine light. Too cool out so she could not tell if AC was working. Could it now be a stuck open thermostat or would you be thinking a computer issue?
have the same problem?
Saturday, May 23rd, 2015 AT 6:31 AM