blend door fix
blend door fix
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Freshman User
Joined: Feb 2003
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blend door fix
The blend door is moving now. Before I did the fix the temp control **** wouldnt do anything and only HOT air blowed out except if it was on max ac. The max ac worked. After I did the fix the temp control **** worked. The door is moving. But ac doesnt get cold. How do I tell if the compressor is engaging?
Laughing Gas
Joined: Mar 2003
Posts: 877
Likes: 1
From: Colorado, U.S.A!
blend door fix
When you switch from vent to A/C you should hear a click from under the hood as the compressor clutch engages and the engine should slow down a bit. Was Max A/C good and cold before? If Max is still real cold and regular A/C isn't, maybe you didn't get the actuator shaft oriented correctly.
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Freshman User
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blend door fix
Dont hear any click, and engine does not slow down. Max ac was good before. Not now, regular ac isnt either. I checked the fuze and it is fine.
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Laughing Gas
Joined: Mar 2003
Posts: 877
Likes: 1
From: Colorado, U.S.A!
blend door fix
I don't think messing with the blend door would have affected whether the clutch engages...
Usually if the clutch won't engage it's something like low freon or a bad pressure switch. Also, I think these have a relay that disengages the a/c clutch at wide open throttle.
One thing you could do is unplug the wires from the pressure switch and jumper the two prongs in the connector. Then turn on the a/c and see if the clutch engages then turn it back off. If it does, either the freon is low or the switch is bad. If it doesn't, it's time for someone who knows more about this than me to jump in here.
Oh yeah, the pressure switch is usually screwed into the top of the reciever/dryer, a black canister looking thing at the passenger side rear of the engine compartment.
Good luck.
Usually if the clutch won't engage it's something like low freon or a bad pressure switch. Also, I think these have a relay that disengages the a/c clutch at wide open throttle.
One thing you could do is unplug the wires from the pressure switch and jumper the two prongs in the connector. Then turn on the a/c and see if the clutch engages then turn it back off. If it does, either the freon is low or the switch is bad. If it doesn't, it's time for someone who knows more about this than me to jump in here.
Oh yeah, the pressure switch is usually screwed into the top of the reciever/dryer, a black canister looking thing at the passenger side rear of the engine compartment.
Good luck.
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Freshman User
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blend door fix
I crossed the 2 posts with a screwdriver but it didn't make a difference. The thing I did notice though is when I unplugged it the motor idled down a bit and when I plugged it back in it idled up a bit.
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Freshman User
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blend door fix
Didn't work. Made a slight difference in the idle. But that was it. I dont know if this makes any difference but I unscrewed the plastic cap on top of the cannister and there were a few small bubbles coming out of the fitting.
Laughing Gas
Joined: Mar 2003
Posts: 877
Likes: 1
From: Colorado, U.S.A!
blend door fix
Well, it sounds like some sort of electrical problem, wiring, switch or maybe the wide-open-throttle relay. Wierd how this came up while you did the blend door, though. Maybe you should pull the connector back off the blend door actuator and make sure no pins got bent. Not sure if anything in that connection affects compressor operation, but it would be quite a coincidence if something else just happened to break while you were fixing the blend door.
BTW, you did have the thing switched to A/C when you crossed those wires, right?
BTW, you did have the thing switched to A/C when you crossed those wires, right?
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Freshman User
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blend door fix
Yea, I had it on a/c when I did it. Maybe I bumped the wrong thing while while working on the blend door. I will tinker with it some more before I go to the shop. Thanks for the help.