Occasional Brake Troubles in 2001 Chevy Silverado 1500

fabformula · 10-09-2008, 06:00 PM

I'm an owner of a 2001 Chevy Silverado 1500 and have had it for a while. It has issues stopping occasionally when applying the brakes but mainly when applying them slower speeds. Again it doesn't happen all the time but occasionally, when you apply the brakes it feels like a quick boost of added resistance to the brake pedal. The only way to actually stop at that point for me is to let my foot off the pedal for a moment then apply harder. At first I wasn't expecting it and nearly crashed into the drug store.

I know there was a recall on the ABS Sensors and that has been addressed (actually twice by 2 seperate dealerships) and they said its the wheel hubs that are causing the occasional delay. I've replaced the bad hubs and the issue seemed to go away for a while but its back again.

Can someone help me with what I need to fix on my truck?

leolkfrm · 10-09-2008, 08:16 PM

welcome to the forum. have you tried flushing the system with fresh fluid?

87c10slammer · 10-09-2008, 09:38 PM

i would check the booster for a vacuum leak or something along them lines... do you have any mods like intake or exhuast? anything that will affect vacuum... you can test the booster with a vacuum guage.. just add some vaccum and let it sit for a little while then check to see if it lost any pressure

gmctrucks · 10-10-2008, 02:29 AM

I just read tonight that older Pontiac cars have trouble with low vacuum that when even to open the front head light doors that one has to rev up the car due to not enough vacuum im thinking you might have a vacuum leak some where now back to the older Pontiac's so what they do to resolve the problem is install a hydro-booster that takes care of it. I think also it had to do with the torque that Pontiac engines have.

fabformula · 10-10-2008, 12:26 PM

Thanks for the suggestions; I'll give them a try and let you know how it goes.

10-09-2008, 06:00 PM	#1
fabformula Junior Member Join Date: Oct 2008 Posts: 2	Occasional Brake Troubles in 2001 Chevy Silverado 1500 I'm an owner of a 2001 Chevy Silverado 1500 and have had it for a while. It has issues stopping occasionally when applying the brakes but mainly when applying them slower speeds. Again it doesn't happen all the time but occasionally, when you apply the brakes it feels like a quick boost of added resistance to the brake pedal. The only way to actually stop at that point for me is to let my foot off the pedal for a moment then apply harder. At first I wasn't expecting it and nearly crashed into the drug store. I know there was a recall on the ABS Sensors and that has been addressed (actually twice by 2 seperate dealerships) and they said its the wheel hubs that are causing the occasional delay. I've replaced the bad hubs and the issue seemed to go away for a while but its back again. Can someone help me with what I need to fix on my truck?

10-09-2008, 08:16 PM	#2
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,855	welcome to the forum. have you tried flushing the system with fresh fluid? __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

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10-09-2008, 09:38 PM	#3
87c10slammer Banned Join Date: Mar 2008 Location: levittown pa Posts: 2,197	i would check the booster for a vacuum leak or something along them lines... do you have any mods like intake or exhuast? anything that will affect vacuum... you can test the booster with a vacuum guage.. just add some vaccum and let it sit for a little while then check to see if it lost any pressure

10-10-2008, 02:29 AM	#4
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,628	I just read tonight that older Pontiac cars have trouble with low vacuum that when even to open the front head light doors that one has to rev up the car due to not enough vacuum im thinking you might have a vacuum leak some where now back to the older Pontiac's so what they do to resolve the problem is install a hydro-booster that takes care of it. I think also it had to do with the torque that Pontiac engines have.

10-10-2008, 12:26 PM	#5
fabformula Junior Member Join Date: Oct 2008 Posts: 2	Thanks for the suggestions; I'll give them a try and let you know how it goes.