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A/C issues

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Old 05-02-2009, 02:10 PM
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lafd5246
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Default A/C issues

So, my A/C only worked on high and switched to defrost when I accelerated. I swapped out the blower motor resistor and A/C check valve on firewall and now all fan speeds work, but air will only blow through defrost vents no matter where the dial is. Any ideas?

Thanks,
JC
1990 GT hatch
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Old 05-02-2009, 02:43 PM
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PRO50SC
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Either a bad vacuum canister or a vacuum leak in the hvac system
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Old 05-02-2009, 02:59 PM
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86 5.0L
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Originally Posted by PRO50SC
Either a bad vacuum canister or a vacuum leak in the hvac system
+1 i had the vacuum line from the vacuum tree disconnected and would do that
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Old 05-02-2009, 03:12 PM
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lafd5246
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Thanks a bunch, I'll look into that
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Old 05-02-2009, 03:24 PM
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PS: I it located in the fender?
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Old 05-02-2009, 03:27 PM
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86 5.0L
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above the master cylinder is the vacuum tree
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Old 05-02-2009, 03:37 PM
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lafd5246
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Cool thanks, by the way, I just got the car and have a Chilton's on the way so I shouldn't be buggin' with too many stupid questions for long.

Thanks for all the help in the meantime.

JC
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