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03-18-2012, 04:58 PM #1
Brake issues on 1999 GMC Suburban
I have a 1999 GMC Suburban 1500. The problem I am having is when I press on the brake pedal all I hear is air like it has air brakes or something and the brakes barely stop when idling or in reverse. When the truck is off it doesnt make the air sound when I press the pedal. I have bled the brakes and it has plenty of fluid. The brake pads have at least have life and there is no air in the brake lines. Help Please!
03-18-2012, 09:41 PM #2
sounds like you need to replace the brake booster
2003 Z71 Silverado LS
Access roll up cover
Billet Grill insert
CB with PA system
Waiting to be installed
Two 8in RF HX2 punch( would have 12s but they got stolen)
03-19-2012, 06:51 AM #3
At least check the vacuum line leading to the booster, but it is highly likely the diaphram inside the can has split.
03-19-2012, 12:34 PM #4
I was afraid of that. I was hoping for the master cylinder cause its much cheaper. Thanks.
03-20-2012, 01:20 AM #5
Do the test first. Sometime it is a cracked check valve. Sometimes it is a rotted hose2010 Chevy Silverado Z71 ext cab.4x4
72 Monte Carlo 350-415 hp- sold (June 2011) to pay medical bills
79 Impala 350 4bbl 375 hp- sold (June 2011)to pay medical bills
"If He asks you to go a mile go two"
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