View single post by JAMMAN
 Posted: Tue Sep 10th, 2019 08:43 pm
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JAMMAN

Wants A Torsen


Joined: Mon Sep 18th, 2017
Location: Grove City OhioUSA
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If the pump is not cycling then it is something to do with that blend door.

When the AC is on the pump should not go on and off so if it is there is something wrong with that part of the system.

The door is actuated by vacuum so SO MUCH can go wrong. Might have a vacuum line leak to that big black ball and it can't keep up. If you notice it while driving but the minute you are at idle it starts blowing cold that would be a symptom.

So one thing at a time in line... does the pump cycle on and off during operation?

If not does it happen more when driving than sitting still?



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