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Re: 2001 jetta ac blowing hot air
Nothing is hard if you have patience and some tools or maybe even a friend to help.
Does the air go cool when moving down the road? Does the vent air blow?
The fans for these are the same.
It is located under the hood, passenger side, right up against the firewall. They usually come out from the front.
Locate the fan motor - disconnect the wires - jumper to the battery with some clip leads, see if the fan runs. If it does, then not the fan and probably a fuse which is on the drivers side underneath the hood. It could also be the switching mechanism at that point, that's why try the heat and vent to see if anything changes.
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Fuses blow because of higher than normal amperage in the circuit. Not sure what circuit the blown fuse is for but if it is for the fan the fan may be shorted therefore blowing the fuse. If you put fuse in while the ac was still on try shutting off the ac then putting the fuse in. See if it blows then if it doesn't then turn the ac on and if it blows you have at the very least isolated the system at fault.
The cooling fans may not be coming on,check to see if they are,if not,look for a fuse,or a relay that is bad.Also a high pressure switch on the high side ac line can be bad,this is what turns the cooling fans on threw the relay.
It sounds like the heater motor may not be operating. When you switch the heater fan on can you hear the motor running? If not then it may have blown the heater fan fuse, check the fuse's and then try it again. If the fuse is ok then it could be a faulty switch or fan motor.
You need to check your fans first, I want you to ck the fuses to your fans - out under teh hood is a fuse box and the fuses are marked, if you find a blown fuse you may have a bad fan motor. Look and you will see 2 fans. they both should run with the a/c on. Ck the fuse then ck the fan motor. The motor wears out and blows the fuse. Good hunting.
well which switch do you know? is itthe fan switch or the ac blend door switch? both can do this also a blend door motor can do the same thing but I need to knowwhat it's doing? blowing? blowing hot air? or not blowing at all? is the controls really loose? need more input.
I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?