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Power steering and power brake

Tiny
CHRISJ35
  • MEMBER
  • 1994 CHEVROLET 3500
  • 6.5L
  • V8
  • TURBO
  • 4WD
  • AUTOMATIC
  • 241,735 MILES
I have a Detroit Diesel engine in my Silverado. There are two hoses or cables running from the power brake into the power steering pump. Are those two hoses supposed to be there?
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Friday, July 7th, 2017 AT 3:14 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
That is what is called a hydro boost and is run by the power steering pump. One is supplied power from the pump and other goes to power steering box for power steering. See picture.
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Saturday, July 8th, 2017 AT 5:58 AM
Tiny
CHRISJ35
  • MEMBER
  • 6 POSTS
So is that why when my power steering went out, my brakes went out too?
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Saturday, July 8th, 2017 AT 8:59 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If the pump was bad yes, but normally on a hydro boost system there is an accumulator in it to give you one or two hits before they do not have power.
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Saturday, July 8th, 2017 AT 10:26 AM
Tiny
CHRISJ35
  • MEMBER
  • 6 POSTS
Alright thank you, that answered everything I wanted to know!
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Saturday, July 8th, 2017 AT 1:52 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
Please use 2CarPros anytime, we are here to help. Tell a friend please.

Cheers, Ken
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Monday, July 10th, 2017 AT 12:29 PM

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