A/C issues
06-20-2016, 02:08 PM
#1
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A/C issues
Hey guys I looked for the forum but couldn't find it. My issue is that when my A/C is in max setting and I accelerate the ventilation swithes to the defrost vents. It doesn't happen in normal setting just on the "max". I live in South Texas so this is a addressable issue since it's hotter than hell down here.
Thanks
Joe
Thanks
Joe
06-20-2016, 02:08 PM
#2
We need some kind of information about your truck...
06-20-2016, 02:11 PM
#3
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06-20-2016, 02:12 PM
#4
Moved to 1987 - 1996
06-20-2016, 02:25 PM
#5
1996 F150 Supercab
Sounds like you have a vacuum leak somewhere
I replaced the cracked vacuum lines and that took care of almost all of the issue, the last thing I replaced was the check valve (I think that is what they call it). Once I replaced that it was all good.
I replaced the cracked vacuum lines and that took care of almost all of the issue, the last thing I replaced was the check valve (I think that is what they call it). Once I replaced that it was all good.
Last edited by cadtdi; 06-20-2016 at 02:28 PM.
06-21-2016, 07:43 AM
#7
Senior Member
Check the white (should be that color) vacuum line in the engine compartment near the firewall on the passenger side. My truck has a bundle up there where one white line loops back to an actuator that controls the airflow direction. That line is usually the problem.