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Leaking power steering fluid

29K views 10 replies 4 participants last post by  starspangled6.0  
#1 ·
The Silverado is leaking power steering fluid, as of today. I saw a nice wet spot on the driver side frame, and sure enough, it's dripping wet from right under the brake reservoir. Looks like there's 2 gaskets on it, and it's wet underneath both of them. My guess is it's the middle one that's leaking, but I wiped off the whole thing with de-greaser so we'll see what it's like in the morning. Any tips before I replace them? It doesn't look too difficult, but who knows. I took some pics for your viewing pleasure...
 

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#3 ·
Any idea for a part number? I couldn't find anything at rockauto.com.
 
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#5 ·
:cry: so you think I have to do the whole unit?
 
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#6 ·
So no one has the gasket... maybe the stealership has one, but I'm not dealing with those morons. I'll probably build my own... looks simple enough. It's cardboard-based, nothing fancy.
 
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#8 ·
So apparently there is no gasket... just some sort of internal leak that requires full hydroboost replacement. Roughly $250 for the whole project... wish me luck :)
 
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#10 ·
Update:

Took me a while, but I got it done yesterday, or so I thought. It still leaks the same amount or worse then before. The steering is better, since you have to do a full fluid flush, but it's still peeing like crazy. I'll tackle it again tomorrow; hopefully it's a bad hose, and not something in the hydro-boost unit. That thing is a royal pain to get off the firewall!
 
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#11 ·
Victory! We found it was one of the high-pressure lines leaking at the HB unit. Looks like the o-ring had totally disintegrated. That was probably the whole cause of the leak, but since the HB unit is prone to leaks a lot anyways, I'm happy.
 
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