Durango 2WD V8-5.7L (2008)
Vacuum Brake Booster: Description and Operation
Description
Without ESP
WITHOUT ESP
All models use a tandem diaphragm, power brake booster (3).
NOTE: The power brake booster is not a repairable component. The booster must be replaced as an assembly if diagnosis indicates a
malfunction has occurred.
With ESP
WITH ESP
The booster assembly consists of a housing divided into separate chambers by two internal diaphragms. The outer edge of each diaphragm is attached to
the booster housing (1).
Two push rods are used in the booster. The primary push rod connects the booster to the brake pedal. The secondary push rod connects the booster to the
master cylinder to stroke the cylinder pistons.
Power brake boosters with ESP will have a travel sensor (7).
