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What would cause the heater and ac to just stop working in a 1992 GMC Sierra?
Wiki User
∙ 13y ago
well it could be a number of things 1 a relay switch simple fix should be on driver side under hood in a box with a label to tell you witch relay is witch or it could be the heater valve but that should not affect your ac so its probably a simple relay switch or brooking wire and maby a fuse try that it should fix it just be sure to disconnect your battery first . that should fix it
Wiki User
∙ 13y ago
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What would cause the heater and ac to just stop working in a 1992 GMC SIERRA and the light for them to not turn on?
The blower motor speed switch is burned out or the fuse is blown.
What would cause heater quit working on 1977 Chevy Camaro?
Check fuse if the blower is not working. If it is then replace your heater core. if its not then replace your fan switch.
What would cause a 1990 GMC Sierra to have no heat?
BLEND DOOR FAILING TO MOVE TO OPEN UP HEATER CORE ACCESS.
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Need to know what it is not doing, post more info.
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your car stalled?
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Heater coil
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Most likely it would be a blown fuse in the fuse block.
What would cause a 1999 Jeep Grand Cherokee to have no ac to front?
if the rear ac is working then you probably have a damper door that is inoperative. this is in the heater/evaporator box. so if it isn't working then you will be heating and cooling at the same time out of the heater box.
How can you fix the heater on your 2002 Saturn?
First check the coolant level, a coolant leak would cause a heater to stop working- assuming you mean the blower is blowing but it isn't hot. A stuck thermostat will also cause you problems with your heat.
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Yes it could also cause the A/C to stop working.
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No...
