1998 Pontiac Sunfire Heat only in reverse

1998 PONTIAC SUNFIRE
185,000 MILES • 3.4L • 4 CYL • 2WD • AUTOMATIC
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SENICAASHER
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Hello,
I just purchased this car used at a fairly reasonable price. Everything seems to fun well with one exception: The heat only blows when the car is in reverse. Actually, it doesn't matter if it's on heat or A/C, same result

So far no one has been able to help me with this. Hopefully you can.
Nov 10, 2014 at 1:35 PM
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JACOBANDNICKOLAS
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Do you mean the blower motor only works when it is in reverse?
Nov 10, 2014 at 2:26 PM
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SENICAASHER
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No, the actual heat in the car. A/C too for that matter.
Nov 10, 2014 at 2:48 PM
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JACOBANDNICKOLAS
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Explain what is happening. Is the fan blowing cold air that gets warm when it is in reverse or does the air flow start when placed in reverse?
Nov 11, 2014 at 7:31 PM
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SENICAASHER
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The air flow starts when the car is put in reverse. When in any other gear there is no air flow to speak of. You can hold your hand to the vent and feel that there is warm air in there, but no air flows out of the vent until you shift into reverse. As soon as you move into any other gear (park, neutral, drive, etc) the air flow stops.
Nov 12, 2014 at 9:20 AM
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JACOBANDNICKOLAS
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I feel there is a bad ground at some point in the system. Check to make sure body grounds are good.
Nov 13, 2014 at 5:23 AM