The heater has began to blow cold. At 1st the passenger side was colder then the driver's. Now both sides are cold. It sounds like the blend doors are bad but thats not it.
I cut into the housing behind the glove box and inspected the blend doors, they are and work fine. I flushed the complete cooling system and everything flows freely even the heater core. Next I put in a new thermostat and thought that was the cure but not so. I don't know what else it could be. Any Ideas?
Randy
If ythe heater core is not bad then I would replace the thermostat, this will stop the warm coolant running up to your engine go to the heater core.
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I did it all thermostat, checked blend doors, cooling system flush. The heater core is not bad and new thermostat. I don't know anything else to do.
ATTENTION EVERYONE WITH HEATER PROBLEMS!!!!!!!!!!!!!!!!!!!!!!
I have done everything, thermostat, checked blend doors, cooling system flush. The heater core is not bad and new thermostat installed. If you are having heater problems PLEASE TRY THIS BEFORE you do anything else!!!!!!!
Turn the ignition on and then turn on the heater/ac system. With the heater/ac systen still on turn the ignition off. Next open the fuse box located next to the battery and pull fuse # 15, it is 50 amp fuse. Wait approximately 5 minutes and then reinstall the fuse.
Turn the ignition on and wait 2 minutes. Now start the engine and let it warm up. This may fix your problem. This is some type of computer reset and it could save you hundreds of dollars. It worked for me. Thanks to Chris A.
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