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Our mechanic has diagnosed our 1994 van as leaking power steering fluid into the brake booster. How would this be possible? -and $400 to fix it?

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Our mechanic has diagnosed our - 172799d1238269038-hydroboost-conversion-hydroboost-diagram.gifThe boster has hoses tho the power steering that operate it.

Posted on Jan 03, 2011

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You might have a hydro-boost system which uses the power steering fluid from the power steering pump to give you brake assist. But if so you don't technically have a brake booster because the hydro-boost system doesn't require a large vaccum booster. It is used for small spaces and uses power steering pressure to give you the assist instead of vaccum. i would go get a few more opinions before going to him but if that is it, then $400 is about right to replace it

Posted on Jan 03, 2011

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The truck has a hydralic brake booster that gets it's fluid from the power steering pump. cost sounds about right.

Posted on Jan 03, 2011

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Remove the power steering pump pulley.
Place a drain pan under the vehicle. Important: Cap or plug the ends of the power steering hoses to prevent fluid loss.
Disconnect the power brake booster inlet hose from the power brake booster.

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Disconnect the power steering cooler hose from the power steering pump.

248015_3_27.gif

Disconnect the power steering pump remote reservoir hose from the power steering pump.

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Raise and support the vehicle. Refer to Vehicle Lifting.
Remove the power steering pump rear mounting bracket nut.
Lower the vehicle.
Loosen the accessory bracket bolts and nut. Pull the accessory bracket forward.
Remove the power steering pump mounting bolts.
Remove the power steering pump and the power brake booster inlet hose from the vehicle.
Remove the power brake booster inlet hose from the power steering pump.







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