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Old 09-04-2020, 02:17 PM
The Peddler
Senior Member
Join Date: Oct 2015
Posts: 917
Received 293 Likes on 171 Posts

I just read your original post again... is the pump stopping right-away, but the pressure is not releasing, or is the pump continuing to run after you release the truck brakes?

If the pump stops, but the pressure doesn't release, you may have a pinched/kinked brake line some where, or the valve/s in the pump are gummed-up? I'd try to thoroughly flush/bleed the lines.