Power steering pump replacement
Thread Starter
Staging Lane
Joined: Mar 2015
Posts: 81
Likes: 0
Power steering pump replacement I've got a leaky power steering pump in my 02 Z28. Plan on getting the turn one pump and pulley or just a ac delco with the pulley from them. When you guys replace them are you getting new lines for the pump as well? If so where are you guys getting them? Thanks
you can get the high pressure side line anywhere.....i do recommend you replace it as it will leak sooner or later
the low pressure side is N/A from GM or from anywhere else pre-made and if you need to replace the soft hose just fab it up with some P/S hose....be careful with the O rings on the lines ....they will tear easy if mis treated
if you have the stock P/S cooler.........GET RID OF IT
flush your system with the help of a friend to get all the old fluid out
the pulley on the turn one pump makes takin out or putting in the pump bolts easy peasy......the stock plastic pulleys can break so if the pump you get has one consider replacing it with a turn one pulley
and get ya a fin style P/S cooler......and use synthetic P/S fluid.....i recommend a inline filter with a built in magnet on the return line
keep the pump and fluid cool and your pump will be happy
the low pressure side is N/A from GM or from anywhere else pre-made and if you need to replace the soft hose just fab it up with some P/S hose....be careful with the O rings on the lines ....they will tear easy if mis treated
if you have the stock P/S cooler.........GET RID OF IT
flush your system with the help of a friend to get all the old fluid out
the pulley on the turn one pump makes takin out or putting in the pump bolts easy peasy......the stock plastic pulleys can break so if the pump you get has one consider replacing it with a turn one pulley
and get ya a fin style P/S cooler......and use synthetic P/S fluid.....i recommend a inline filter with a built in magnet on the return line
keep the pump and fluid cool and your pump will be happy
Last edited by sjsingle1; Mar 20, 2019 at 12:14 AM.
I just did my T1 pump - also I recommend getting new J189 PS return line hose. I used some sealant on the reservoir (return) side to stop leaks (make sure it's good and clean). Summit sells Continental J189 hose but it's hard to find at local parts store. (There's a seller on Amazon that sells J189 cheap but it's a scam.)
Also the reservoir holds at least 1.25 cups of fluid you can't get out with a turkey baster, so be careful with it. I put plastic bags then rags all over top of my pulleys and alternator to make sure it didn't drip onto them.
Also the reservoir holds at least 1.25 cups of fluid you can't get out with a turkey baster, so be careful with it. I put plastic bags then rags all over top of my pulleys and alternator to make sure it didn't drip onto them.
Thread Starter
Staging Lane
Joined: Mar 2015
Posts: 81
Likes: 0
Originally Posted by sjsingle1
you can get the high pressure side line anywhere.....i do recommend you replace it as it will leak sooner or later
the low pressure side is N/A from GM or from anywhere else pre-made and if you need to replace the soft hose just fab it up with some P/S hose....be careful with the O rings on the lines ....they will tear easy if mis treated
if you have the stock P/S cooler.........GET RID OF IT
flush your system with the help of a friend to get all the old fluid out
the pulley on the turn one pump makes takin out or putting in the pump bolts easy peasy......the stock plastic pulleys can break so if the pump you get has one consider replacing it with a turn one pulley
and get ya a fin style P/S cooler......and use synthetic P/S fluid.....i recommend a inline filter with a built in magnet on the return line
keep the pump and fluid cool and your pump will be happy
the low pressure side is N/A from GM or from anywhere else pre-made and if you need to replace the soft hose just fab it up with some P/S hose....be careful with the O rings on the lines ....they will tear easy if mis treated
if you have the stock P/S cooler.........GET RID OF IT
flush your system with the help of a friend to get all the old fluid out
the pulley on the turn one pump makes takin out or putting in the pump bolts easy peasy......the stock plastic pulleys can break so if the pump you get has one consider replacing it with a turn one pulley
and get ya a fin style P/S cooler......and use synthetic P/S fluid.....i recommend a inline filter with a built in magnet on the return line
keep the pump and fluid cool and your pump will be happy
Thread Starter
Staging Lane
Joined: Mar 2015
Posts: 81
Likes: 0
Originally Posted by Chris Paveglio
I just did my T1 pump - also I recommend getting new J189 PS return line hose. I used some sealant on the reservoir (return) side to stop leaks (make sure it's good and clean). Summit sells Continental J189 hose but it's hard to find at local parts store. (There's a seller on Amazon that sells J189 cheap but it's a scam.)
Also the reservoir holds at least 1.25 cups of fluid you can't get out with a turkey baster, so be careful with it. I put plastic bags then rags all over top of my pulleys and alternator to make sure it didn't drip onto them.
Also the reservoir holds at least 1.25 cups of fluid you can't get out with a turkey baster, so be careful with it. I put plastic bags then rags all over top of my pulleys and alternator to make sure it didn't drip onto them.
if you get a new H/P hose it will come with 2 O rings......if you remove the LP hose ( hard line ) from the rack i recommend you do replace the O ring.....3 O rings in total
i lube up the O rings with Vaseline to help keep them from tearing.....O rings are available from the dealer.....about 8$ each
is the hose on the LP (return) side bad that you need to replace it? ....its 3/8 in case you did not know......you can use the Continental HP hose on the return side
to replace the LP hose just cut the crimp off the hard line and put on the new hose....a hose clamp works fine no crimp style clamp needed
i have never used sealant on the hoses so maybe Chris can elaborate more on what he did
i lube up the O rings with Vaseline to help keep them from tearing.....O rings are available from the dealer.....about 8$ each
is the hose on the LP (return) side bad that you need to replace it? ....its 3/8 in case you did not know......you can use the Continental HP hose on the return side
to replace the LP hose just cut the crimp off the hard line and put on the new hose....a hose clamp works fine no crimp style clamp needed
i have never used sealant on the hoses so maybe Chris can elaborate more on what he did
here is my solution for P/S cooling.....i am partial.......so its the best !
https://www.ls1.com/forums/f63/power...l-pics-157864/
https://www.ls1.com/forums/f63/power...l-pics-157864/
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here is my solution for P/S cooling.....i am partial.......so its the best !
https://www.ls1.com/forums/f63/power...l-pics-157864/
https://www.ls1.com/forums/f63/power...l-pics-157864/
We also have the thread on our site for this mod, but there's a bunch of trash in it, which has accumulated over the years...
https://ls1tech.com/forums/general-m...g-success.html
Maybe we should lock this up and create just a clean how-to for posterity regarding the method that we know is clean and works for the rail coolers?
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Staging Lane
Joined: Mar 2015
Posts: 81
Likes: 0
Okay so I have read over those threads and checked a few things out. For one I didn't even know I had a power steering cooler now I do. So I guess I'll be replacing my power steering as I thought and now for sure the cooler. I'm assuming you guys flushed the coolant completely as well as doing the cooler swap? 
so those two hoses connected to the cooler will be attached to the new cooler and you guys replaced the hoses completely with the longer ps hoses and ran them to the cooler or what? I may be over thinking this a little and confusing myself. 
this line from my power steering pump is leaking so would I just replace that whole line with the longer ps line and run it to the cooler? Sorry for the newbie questions guys
so those two hoses connected to the cooler will be attached to the new cooler and you guys replaced the hoses completely with the longer ps hoses and ran them to the cooler or what? I may be over thinking this a little and confusing myself. 
this line from my power steering pump is leaking so would I just replace that whole line with the longer ps line and run it to the cooler? Sorry for the newbie questions guys We also have the thread on our site for this mod, but there's a bunch of trash in it, which has accumulated over the years...
https://ls1tech.com/forums/general-m...g-success.html
Maybe we should lock this up and create just a clean how-to for posterity regarding the method that we know is clean and works for the rail coolers?
https://ls1tech.com/forums/general-m...g-success.html
Maybe we should lock this up and create just a clean how-to for posterity regarding the method that we know is clean and works for the rail coolers?
......of course it is a step by step for newbsand the other thread is gettin long and hard to follow so yes....it needs cleaning or a whole re do
Last edited by sjsingle1; Mar 22, 2019 at 12:58 AM.
race....remove the cooler and replace with a regular upper hose.....if you have a doubt about P/S fluid bein in the coolant go ahead and do a flush
i would say the seepage on the hose is more the residue from the normal leakage the cap does ( it ALWAYS WEEPS so dont worry ) than a bad hose....be careful with the return nipple on the tank and dont break it off
if you get the cooler I got you may have enough hose in the package there to do the job
i would say the seepage on the hose is more the residue from the normal leakage the cap does ( it ALWAYS WEEPS so dont worry ) than a bad hose....be careful with the return nipple on the tank and dont break it off
if you get the cooler I got you may have enough hose in the package there to do the job
Thread Starter
Staging Lane
Joined: Mar 2015
Posts: 81
Likes: 0
Originally Posted by sjsingle1
race....remove the cooler and replace with a regular upper hose.....if you have a doubt about P/S fluid bein in the coolant go ahead and do a flush
i would say the seepage on the hose is more the residue from the normal leakage the cap does ( it ALWAYS WEEPS so dont worry ) than a bad hose....be careful with the return nipple on the tank and dont break it off
if you get the cooler I got you may have enough hose in the package there to do the job
i would say the seepage on the hose is more the residue from the normal leakage the cap does ( it ALWAYS WEEPS so dont worry ) than a bad hose....be careful with the return nipple on the tank and dont break it off
if you get the cooler I got you may have enough hose in the package there to do the job
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Thread Starter
Staging Lane
Joined: Mar 2015
Posts: 81
Likes: 0
Originally Posted by 01ssreda4
I don't want to confuse so I'll keep it simple: J189 hose is power steering return hose. It has no fittings, just hose by the foot. J189 is the spec name so it's for power steering, and a little different composition from say vacuum hose or fuel hose. It can go from the PS cooler back to the reservoir.
The kind of sealant I used on mine was Permatex gray (for gear oil since I had some of that available, blue silicone would prob be ok too). I only used a little tiny bit on the barb on the reservoir, since the new hose fit snug. Reusing the old hose gave me leaks. I sourced new hose because the old hose didn't seal from being heated up for years and lost its elasticity.
The kind of sealant I used on mine was Permatex gray (for gear oil since I had some of that available, blue silicone would prob be ok too). I only used a little tiny bit on the barb on the reservoir, since the new hose fit snug. Reusing the old hose gave me leaks. I sourced new hose because the old hose didn't seal from being heated up for years and lost its elasticity.
if you look at my linked thread you can see that I bought extra hose from derale....it was goodyear hose.....ended up with waaaay to much hose
i have a summit near me so getting hose is not problem
i have done 3 cars now....my old one....my sons....now my 02 WS6....and rebuilt 2 pumps......besides Turn 1 i should be the resident tech expert ! ( pats own back )
i have a summit near me so getting hose is not problem
i have done 3 cars now....my old one....my sons....now my 02 WS6....and rebuilt 2 pumps......besides Turn 1 i should be the resident tech expert ! ( pats own back )
if you look at my linked thread you can see that I bought extra hose from derale....it was goodyear hose.....ended up with waaaay to much hose
i have a summit near me so getting hose is not problem
i have done 3 cars now....my old one....my sons....now my 02 WS6....and rebuilt 2 pumps......besides Turn 1 i should be the resident tech expert ! ( pats own back )
i have a summit near me so getting hose is not problem
i have done 3 cars now....my old one....my sons....now my 02 WS6....and rebuilt 2 pumps......besides Turn 1 i should be the resident tech expert ! ( pats own back )
budget approach.....install cooler run syth fluid and flush the system
**** approach .....get a turn 1 rebuild pump....new pump....or rebuild yourself ( its really easy !!! ) ....and add the cooler ....new hose....fluid and still flush it
and dont forget the billet pulley ....for strength AND ease of getting to the pump bolts
a filter with magnet in the return line is always good too !
Thread Starter
Staging Lane
Joined: Mar 2015
Posts: 81
Likes: 0
You guys have been extremely helpful and it is much appreciated. I have some hose and the high pressure side coming in the mail. I'm going to order up a replacement hose for the manual steering rack for the radiator so I can get rid of the cooler and then get the billet pulley. I think I'm going to pull out the pump and clean everything out and replace those lines and put in the new cooler and flush it and refill and bleed the system before I decide to get a new pump. Do you think that would be an okay idea to do before spending the cash on a new pump? Also I've seen the few different coolers that people have been using is there really a difference between the fin styled one or the more squared one?
not all coolers are the same.......they are application dependent... ..the one I use does not get direct airflow and is designed as such .....while some coolers do need direct airflow.....decide where you want to mount the cooler and what size you are comfortable with.....and research within those options
as far as new pump or anything else....what are you comfortable with .....money no object or counting pennys ?
as far as new pump or anything else....what are you comfortable with .....money no object or counting pennys ?