Powersteering flush
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Senior User
Joined: Jul 2007
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From: Stratton, Ontario
Powersteering flush
Wanting to completely flush the powersteering pump. I understand that you open the cap and add fluid while the truck is running and turning the wheels. What I am confused about, is which line do you detach and collect old fluid from which port.
Here is the diagram of the system; maybe someone can explain. Also, which hose is it that commonly breaks?
Here is the diagram of the system; maybe someone can explain. Also, which hose is it that commonly breaks?
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
The pic you have isn't the same as what your truck has. Thats a truck equipped with hydroboost brake booster. but anyway the line you want is the all rubber line that goes in a nipple on the pump. It just has a hose clamp on it. that is the return line. you will need to plug the nipple or the reservior will just drain out there.
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Joined: Jul 2007
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From: Stratton, Ontario
Originally Posted by tjbeggs
The pic you have isn't the same as what your truck has. Thats a truck equipped with hydroboost brake booster. but anyway the line you want is the all rubber line that goes in a nipple on the pump. It just has a hose clamp on it. that is the return line. you will need to plug the nipple or the reservior will just drain out there.
Posting Guru
Joined: Jan 2003
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From: Munroe falls, Ohio
Hydro boost uses pressure from the power steering pump while a regular brake booster uses vacuum. Both do the same job, the hydro is stronger and is often an upgrade for the OBS trucks. But stock an OBS comes with a vacuum brake booster. #5 is the hydro booster in the diagram
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From: THUNDER BAY
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Senior User
Joined: Jul 2007
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From: Stratton, Ontario
Originally Posted by tjbeggs
the line you want is the all rubber line that goes in a nipple on the pump. It just has a hose clamp on it. that is the return line. you will need to plug the nipple or the reservior will just drain out there.
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