I just picked up this car for a second vechicle, and it has a few issues.

1) The defrost is always on and hot! I have been taking out the fuse when not needed, but its geting old. It has a push button type of control panel. (not digital) It has Auto Temp Control, but it just blows hot all the time.
It won't switch to any other function when selected. The rear defrost doesn't go on either.

2) The radio only plays on the left side. Front and rear, but only left.

3) The gas guage goes up to the amount of gas in tank, then down to empty, and back and forth intermittently.


Thanks in advance for any help I can get.

 

1)Im sure its the control for the autotemp.

There is a lose wire if your brave,you can take it apppart and re solder the joints.

This is how they were fixed after the warenty was up.

2)possably a bad or dirty stitch on the radio or a problem with the amp(in the trunk).

3) i would guess a bad ground on the tank

 

You need to check out the blend door actuator. If the blend door does not move to allow for the mixture of hot and cold air (air across the evaporator coil and heater core), the temp will not change. I believe that is what I am dealing with on my 98 concorde stuck on cold.

 

Pick up a new head unit (control panel) for the HVAC off ebay or similar. This usually fixes the problem. I got one for $20 that fixed mine.

When you have the thing out, wiggle around for loose wires and check under the dash for a bad ground that may be causing your other problems.