Six problems related to power assist brake vacuum have been reported for the 1996 GMC Jimmy. The most recently reported issues are listed below.
Second failure of brake vacuum booster on 1996 GMC Jimmy 4wd - actual milage 38,910. The brakes on this vehicle have never worked properly since new. I have had it to the dealership numerous times - no better. "a rolling non-braking nightmare to drive !! second alternator, 4th battery, rust in automatic transmission,driver's power-window motor @ 30,000 miles his vehicle never been used "off-road. It is driven by an older woman to and from work, shopping, & pleasure.
Failure of brake booster make vehicle difficult to stop was concerned until I was able to get the car to the dealer for repairs. Dealer said he has seen alot of these vehicles come in with this failure.
The power brake booster malfunctioned, causing very little braking, which may have caused a crash. Same problem as the investigation # pe99024. Please provide further information.
This is the second Jimmy I drive (too loyal for my own good. ) the first one a 1995. Also had a booster failure at around 40,000+ miles (luckily I was able to coast on that occasion to a full stop without causing any damage to anyone. This one a 1996 has failed, like clockwork, at 45,000 miles.
Brake booster went completely out, causing poor braking ability. Consumer has contacted the dealer. Please provide any further details.
Vacuum brake booster leaked causing brake failure.