Car Information:
Jeep/Grand Cherokee Larado
Year: 1997
Engine Size: 6
Trans: Automatic

Issue / Question:
I hear a hissing sound when depressing the brake pedal. The booster seems to test okay for being air-tight going by Haynes manual. Any ideas?

Answer:
If at any position while depressing the brake pedal you hear constant hissing it’s a bad booster.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.
Magic Mechanic
1432 Lee Road OrlandoFL32804 USA 
 • (407) 298-7447