Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello, what's the year, model and engine size of the truck?
2001 HD2500 6.0 ENGINE
disconnect the line at the master cylinder and verify the master cyl is pumping out first. If that is good just follow it down and get fluid to each break until its at the calipers then leave their bleeders open for 30 min and let it gravity bleed out. if he got too much air in the master cyl then run a hose from the outlet up to the cap so it recycled fluid and pump it like crazy.
OK MASTER CYLINDER IS GREAT GOOD PRESSURE TO ABS BOX STILL NO FLUID TO FRONT CALIPERS