Power Steering Pressure line - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > General

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  #1  
Old 12-31-2010, 11:56 AM
NYSFF's Avatar
NYSFF NYSFF is offline
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2002 Chevy TrailBlazer LT
Light Pewter Metallic 4.2L I6 4X4
Join Date: Jan 2009
Location: Buffalo, NY
Posts: 87
Power Steering Pressure line

I'm replacing the Pressure line and the end that fits into the Rack seems a lil bit bigger than the original one that came out. in the package it says to remove the old seal inside the rack and either i dont see it or im lost. Does anyone know what im looking for and the PROPER way to remove it?


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  #2  
Old 01-03-2011, 06:29 PM
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NYSFF NYSFF is offline
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2002 Chevy TrailBlazer LT
Light Pewter Metallic 4.2L I6 4X4
Join Date: Jan 2009
Location: Buffalo, NY
Posts: 87
Ok after some days of waiting i finanlly got the strength to give my truck a go!

I really thought i had a bad rack but this is what happened.

After putting everything back together. I move the wheels left and right all the way about 5 times to get some air out of the lines. I noticed there was leakage coming from the Rack & Pinion so I stopped right there and feared the worse. Finally today i had to start it because it was dead and we have to move vehicles around here for the snow plow to plow the lot. I FEARED THE WORSE.
After getting it started and getting ready to look under the truck and hood. I look to find........................ NOTHING! So I call my buddy who works on cars and he explains to me that probably the system wasn't "Pressurised".. So After of the headaches, Backaches and frustration. I have a feeling it's fixed.
There may still be some air in the system being i hear it whine a lil when i turn the wheel. But then again. Its a new pump, new line and has been sitting a while so i'm sure it has adjusting to do!

So hopefully my screw up's help someone out there!

And BTW. In regards to the o'ring. I popped out the old one and have yet to find it to even explain what it looks like when the old ring comes out.

Thanks Trailvoy again!
Your never a let down when it comes to working on my Trailblazer!
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  #3  
Old 01-23-2011, 09:03 PM
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wagnewvt wagnewvt is offline
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2002 Olds Bravada
Light Pewter Metallic 4.2L I6 4X4
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Location: Burlington, VT
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Answer to your question about seals

I was having the same problem and saw your post. I was hoping someone would reply with the answer because I didn't want to do "exploratory surgery".

Using a seal puller and a lot of contortions, I was able to get an edge into each of the holes - and out came the seals!

Just like your picture, there was a lot of rust built up around both seals - which is probably what was making them so hard to get out without a seal puller.

It is good to hear that you didn't need to replace your seals - I was concerned that my system would leak at either or both of those connections if I didn't replace mine.
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Old 01-23-2011, 10:27 PM
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NYSFF NYSFF is offline
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2002 Chevy TrailBlazer LT
Light Pewter Metallic 4.2L I6 4X4
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Posts: 87
Do u have a pic of your old seals? Like I said mine popped out so fast that it shot somewhere and I was never able to find it.

Thus I pray I took out all i was suppose to lol
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Old 01-24-2011, 08:25 PM
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wagnewvt wagnewvt is offline
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2002 Olds Bravada
Light Pewter Metallic 4.2L I6 4X4
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OEM high-pressure/rack inlet line with seals

Here are some pics of the new OEM high pressure line ($231 at the dealer with military discount):
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  #6  
Old 06-14-2012, 11:10 PM
SgtRauksauff SgtRauksauff is offline
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2002 Chevy TrailBlazer LS
Sand Beige Metallic 4.2L I6 4X4
Join Date: Jun 2012
Location: Wisco
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back from the dead

Ok, then. after searching, and finding threads here, and reading them, and getting 90% done with replacing BOTH hoses with OEM parts, we've got a question.

in this photo:


WTF are those things? Are they just plugs to use so fluid doesn't leak out?

How do they work, since fluid does not appear to be able to pass through them.

The end of the PS line will fit through the opening in the copper part of that, but there is not enough room, as far as we can tell, for them to fit inside the rack once that is done.

does anyone have an image or a page from the FSM?

We're at a loss. Sorry for the possible rambling, we needed to cut the pain of working on this with some beers, and they seem to be focusing on the language centers of my brain.

Please Help,

Thanks much,


--sarge
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  #7  
Old 06-15-2012, 04:28 PM
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wagnewvt wagnewvt is offline
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2002 Olds Bravada
Light Pewter Metallic 4.2L I6 4X4
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Location: Burlington, VT
Posts: 39
My '02 Bravada had them in sitting inside the rack, one in each port (look at NYSFF's picture above - they go INSIDE the rack).

If you didn't take your old ones out - as difficult as that might be - then the new ones will definitely not be at the proper depth for the lines to seal.

Fluid will pass through them - the indentations are actually slits in them.

I'm not sure how well the connections would seal without them - especially given that the system will have some pretty good pressure when you reach the turning limit on either side.

You said you bought OEM lines - did you get a set of these with your lines?
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