Originally Posted by
WALJON
Yeah I'm one of those guys who uses the parking brake regularly in an automatic
Yeah me too I have a high Idle controller and the brake has to be set for it to work.
good luck and post what you find
Walter
A vacuum test today when the truck was cold showed that she pulled about 25 in hg. I'm thinking that's good enough, but I'm going to have to test after the brake light is on just to confirm that the vacuum pump is working properly. I'll post again after I perform the test.