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Old 06-22-2010, 06:41 AM   #1 (permalink)
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Leaking Hydroboost

I go through approx 1 qt power steering fluid/week. Got the truck up on a hoist yesterday and it looks like the hydroboost unit is leaking. It's wet and has drips on the underside. Could it be that, or more likely a leaking hose spraying up on it? I have good brakes, just power steering issues when the level gets low. Thanks.
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Old 06-22-2010, 06:53 AM   #2 (permalink)
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why not place a piece of cardboard under it. If it is wet on the hydroboost side then you know where to go. I think it is the hydroboost that is leaking as the fan would spray the hose leak all over the place.....

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Old 06-22-2010, 02:43 PM   #3 (permalink)
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Hydroboost is easy R&R

Mine was leaking down the firewall and onto the frame. Then getting blown back down the entire drivers side undercarriage.

The hydroboost was an easy remove and replace for me @ 140,000 miles. Swap out your hydraulic fluid at the same time. I should have done it earlier instead of cleaning up that mess for months! Order your parts on line. It should take you less than an hour for the swap.
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Upgrades- Banks turbo-back exhaust. K&N STOCK intake. Hypertech programmer. BD exhaust manifold. Airdog FP-150 lift pump/filters. PPE turbo boost valve. Autometer Pillar gauges. All synthetic fluids. Mag-Hytec Diff cover. Bilsteins. Cognito steering linkage upgrades. Xfer case rub kit and new nickel yoke. Spicer u-joints. 285/75/16E A/T. On-board air and train horns. Prodigy Brake. AirLift Air Bags. Stereo- Sony/Fosgate/Soundstream/MB Quart/JBL. Urethane front suspension bushings.
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Last edited by mrridg; 06-22-2010 at 02:47 PM.
Old 06-23-2010, 06:04 PM   #4 (permalink)
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I did mine too. Easy fix. dealer wanted $800, I did it in a few hours for about $150.
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Old 06-28-2010, 09:29 PM   #5 (permalink)
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Is there any way to replace the seals in the unit or did you just replace the whole hydro unit. Mine is leaking power steering fluid between the master cylinder and the hydro unit, it is a slow leak but is making a mess. Just hate to buy a new unit if it dont need it.
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Old 06-28-2010, 11:26 PM   #6 (permalink)
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Originally Posted by mighty mouse View Post
Is there any way to replace the seals in the unit or did you just replace the whole hydro unit. Mine is leaking power steering fluid between the master cylinder and the hydro unit, it is a slow leak but is making a mess. Just hate to buy a new unit if it dont need it.
I have the same PS fluid leak, only drops but a small mess.
Maybe just an O-ring?

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