Testing and Inspection for Vacuum Brake Booster in 1985 S15/T15 2WD P/U L4-119 19L
Vacuum Brake Booster: Testing and Inspection
Delco Moraine Brake Boosters
Troubleshooting
Hard Pedal
1.
Internal vacuum leak.
2.
Faulty control valve.
Brakes Grab
1.
Faulty control valve.
Slow or No Release
1.
Faulty pushrod adjustment.
2.
Bind in linkage.
Tandem Diaphragm Type
Fig. 3 Delco Moraine tandem power brake unit exploded view
