No Brakes

Mike Pearson · 11-03-2008, 07:26 AM

2005 Silverado 3500 dually. The power brakes and power steering are not working. Is the pump bad or the brake booster? Any one else had a similar problem?

buzzinhalfdozen · 11-03-2008, 08:01 AM

Mike, I've seen quite a few power steering pump shafts twist off, the pulley may still be there. Try pulling forward on the pulley, if it moves forward the shaft is broken. If it does not then you need to have the system tested for power steering pressure, most shops have the correct tools to perform this test. Hope this helps. Joe Buchanan

Bob Verwold · 11-03-2008, 08:44 AM

Not sure if yours is the same, but my 84 1 ton has a thing by firewall ( bolts to the master cylinder ) that runs the power brakes and power steering. I think it's called a hydro-booster when it goes so go the brakes and steering. Hope this helps..........

Went and looked at my tk it bolts to the firewall then the master cylinder bolts to it .

bobby · 11-03-2008, 11:06 AM

I have actually had the balancer hub come loose on my 95 diesel.

race watcher · 11-03-2008, 04:32 PM

Every time I have encountered this problem it has been the pump. I have done probably 6 pumps in 2 years.

ss3011 · 11-03-2008, 07:50 PM

In 2000 , GM had a campaign for the power steering pump shaft. It was fixed for 2001, The power steering pump is the fluid and pressure source for the Hydra-boost system.

Lynnmsp · 11-03-2008, 09:23 PM

Just finished a 2000 K3500 with the same problem.If you have no pump noise or mixing of the fluid in the power steering pump then the problem is the pump.I removed the pump and the shaft was broke.I replaced the pump and I now have steering and power brakes again.

Rob Petrie E395 · 11-03-2008, 09:58 PM

The pumps are a problem on these trucks not uncommon as others have posted to have them break the shaft. It is a good idea to flush the lines real good after replacing the pump in case there are metal fragments in them you dont want them to ruin the new pump or the hydrobooster.

Mike Pearson · 11-05-2008, 09:30 AM

Thanks for all of the responses. The brakes and steering started to work again on their own. I am just waiting for it to happen again so I can tell what the problem is.

Floyd Staggs · 11-05-2008, 10:29 AM

I have a 2500 HD. I had power steering fluid leaking every time I parked it. The dealer repaced the pump. Still had a leak and they replaced all the hoses. Still had the leak and they "finally" dicovered it was the hydrobooster leaking at the seal on the firewall. I had to pay for that one cause the warranty had run out.
One good thing, the driver side carpet will never rust.

11-03-2008, 07:26 AM	#1
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,450 Likes: 615 Liked 1,930 Times in 580 Posts	No Brakes 2005 Silverado 3500 dually. The power brakes and power steering are not working. Is the pump bad or the brake booster? Any one else had a similar problem? __________________ Mike Pearson 2485 SS

11-03-2008, 08:01 AM	#2
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: No Brakes Mike, I've seen quite a few power steering pump shafts twist off, the pulley may still be there. Try pulling forward on the pulley, if it moves forward the shaft is broken. If it does not then you need to have the system tested for power steering pressure, most shops have the correct tools to perform this test. Hope this helps. Joe Buchanan

11-03-2008, 08:44 AM	#3
Bob Verwold Senior Member Join Date: Jul 2007 Location: Fayetteville Ohio Posts: 656 Likes: 0 Liked 0 Times in 0 Posts	Re: No Brakes Not sure if yours is the same, but my 84 1 ton has a thing by firewall ( bolts to the master cylinder ) that runs the power brakes and power steering. I think it's called a hydro-booster when it goes so go the brakes and steering. Hope this helps.......... Went and looked at my tk it bolts to the firewall then the master cylinder bolts to it . Last edited by Bob Verwold; 11-03-2008 at 09:36 AM. Reason: add on

11-03-2008, 11:06 AM	#4
bobby Member Join Date: Jun 2008 Location: League City, Texas Posts: 243 Likes: 0 Liked 0 Times in 0 Posts	Re: No Brakes I have actually had the balancer hub come loose on my 95 diesel.

11-03-2008, 04:32 PM	#5
race watcher Junior Member Join Date: Nov 2006 Posts: 50 Likes: 5 Liked 1 Time in 1 Post	Re: No Brakes Every time I have encountered this problem it has been the pump. I have done probably 6 pumps in 2 years.

11-03-2008, 07:50 PM	#6
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: No Brakes In 2000 , GM had a campaign for the power steering pump shaft. It was fixed for 2001, The power steering pump is the fluid and pressure source for the Hydra-boost system.

11-03-2008, 09:23 PM	#7
Lynnmsp Junior Member Join Date: Feb 2005 Location: USA Posts: 14 Likes: 0 Liked 0 Times in 0 Posts	Re: No Brakes Just finished a 2000 K3500 with the same problem.If you have no pump noise or mixing of the fluid in the power steering pump then the problem is the pump.I removed the pump and the shaft was broke.I replaced the pump and I now have steering and power brakes again.

11-03-2008, 09:58 PM	#8
Rob Petrie E395 VIP Member Join Date: Dec 2007 Location: Woodlawn IL Posts: 1,092 Likes: 162 Liked 216 Times in 77 Posts	Re: No Brakes The pumps are a problem on these trucks not uncommon as others have posted to have them break the shaft. It is a good idea to flush the lines real good after replacing the pump in case there are metal fragments in them you dont want them to ruin the new pump or the hydrobooster.

11-05-2008, 09:30 AM	#9
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,450 Likes: 615 Liked 1,930 Times in 580 Posts	Re: No Brakes Thanks for all of the responses. The brakes and steering started to work again on their own. I am just waiting for it to happen again so I can tell what the problem is. __________________ Mike Pearson 2485 SS

11-05-2008, 10:29 AM	#10
Floyd Staggs VIP Member Join Date: Feb 2006 Location: Cucamonga, CA Posts: 1,522 Likes: 157 Liked 229 Times in 99 Posts	Re: No Brakes I have a 2500 HD. I had power steering fluid leaking every time I parked it. The dealer repaced the pump. Still had a leak and they replaced all the hoses. Still had the leak and they "finally" dicovered it was the hydrobooster leaking at the seal on the firewall. I had to pay for that one cause the warranty had run out. One good thing, the driver side carpet will never rust. __________________ Floyd Staggs 787 SST