My a/c works fine but the blower speed only works in 4. 1 2 and 3 only the compressor comes on not the fan I need to know where the fan relay is located? anybody have an Idea? I have checked all the fuses and they are fine. I would hate to buy the manual just for this.
Actually the relay is not the problem here. Your blower resistor has gone bad. The resistor reduces the amount of power going to the fan, thus allowing the slower speeds. I don't know the exact location, though it is typically in the blower housing.
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Will your blower fan kick on in the medium position by chance? Med/ med high..if it is a 4 position switch, does it operate in the number 3 position? If so it is probably your blower motor resistor. If not, I would test the blower motor itself. Since the compressor kicks on when you turn the fan on, I would think the switch is working.
Sounds to me like the A/C clutch is no good and out of adjustment.You should goto your nerrest junkyard and get a used assembly take the clutch off then you learn how it comes off and install it on yours the save the pump for later use if needed. The clutch should only have a .010 air gap after install between th inner elctro magnet and the clutch plate it's self.
The problem is the blower motor speed control resistor, it is located near the blower motor in the housing. I exchanged mine and it works like a charm now.
> With the control set 1 2 3 4 it does blow any air, ? does NOT? A common problem with this control is the failure of a stepped resistor which causes only the highest speed to still function since this bypasses the resistor. Tracing the leads from the fan speed switch may help locate it.
If the freon is full and the compressor clutch is working,is the blower working, need more details, if it is, you could have a blocked orifice filter. or a bad high pressure switch located at the rear of the compressor.if the high pressure switch loses voltage or goes out, your cool air will come to a dead halt. check the high pressure switch for voltage. good luck!
Per your description, I believe you may have a blower fan relay that is stuck closed. Remove the relay from the under-hood fuse center and see if the fan stops. If it does stop, put the relay in slowly and see if you here the relay "click" and the fan come back on. Let me know. Regards,
A/C-heater works but only blows on high
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