View single post by JAMMAN
 Posted: Tue Sep 10th, 2019 08:43 pm
PM Quote Reply Full Topic

Wants A Torsen

Joined: Mon Sep 18th, 2017
Location: Grove City OhioUSA
Posts: 4812
Reputation Points: 7596
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?

00 XLT 4WD XCSB 4.0 G2
00 XLT 2WD RCSB 5.0 swap Gherkin
00 XLT 4WD RCSB 3.GO! JalapeƱo
"I'm thinking about buying a horse eventually, I'll take half a dozen carts please"