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post #16 of (permalink) Old 04-06-2016, 11:49 AM Thread Starter
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I did a complete flush and change to the Lucas ps fluid. I started my car before I did anything and the squeak was very pronounced, after I did the flush it squeaked about 4 times and stopped completely and hasn't done it sense, so we'll see. How has yours been?
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post #17 of (permalink) Old 04-06-2016, 12:22 PM
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Hmm - that sounds like good news!! Hopefully, it stays that way!

Mine has still been noise-free - even this morning when it was below freezing.

I still can't believe that it will fix the issue forever though - I have a feeling that it's eventually going to come back. In my case, if it comes back, I'll get it addressed under my extended warranty.

In your case, I hope it stays that way!! Please do keep us updated - may determine whether or not others should try it if they have the issue.

Thanks for reporting back!

EDIT: When you say that you did a "complete flush" - what does that mean? Did you just replace all fluid in the reservoir multiple times or did you somehow force all of the old fluid out with a pump or something?

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post #18 of (permalink) Old 04-06-2016, 06:53 PM Thread Starter
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Yes hopefully things stay this way for both of us.. The first time I jacked the front wheels up and sucked all the fluid out of the reservoir then had my better half turn the wheels (engine off key on) lock to lock while I sucked more fluid out.. This time I removed the return hose and bled all the fluid out while adding to the reservoir until I I thought it was all clear fluid running out.. I poured some of both the Lucas and new gm fluid into separate clear jars just to see if I could notice a difference. It seemed the Lucas was slightly thicker than gm, at least when it's cold, just a fact I found interesting.
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post #19 of (permalink) Old 04-07-2016, 05:41 AM
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I know that when I removed the old fluid from the reservoir, the fluid that was in there was a very dark-colored fluid - the Lucas fluid is clear.

Was your old fluid very dark as well? Not sure what color it was when it was originally put in, but mine was dark brown when I removed it...

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post #20 of (permalink) Old 04-07-2016, 09:03 AM Thread Starter
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Yes mine was pretty dark. I'm trying to copy the procedure from the service manual but for some reason it isn't letting me. But here's basically what it says-

1. Jack up front end so the front tires are off the ground.
2. Remove all the fluid you can from the reservoir
3. Turn the wheels lock to lock with the key on engine off, then suck that fluid out
4. Remove the return line (at the reservoir is easiest) and plug the barb coming out of the reservoir
5. (This is what i found to be the easiest) extend the return line by inserting another hose into a drain pan.
6. Key on engine off, have someone turn the wheels lock to lock while you add fluid to the reservoir, until what comes out the return line is new clean fluid.
7. Hook the return line back to the reservoir, I found the clamp that's on there from factory will NOT re seal and its best to use the "screw" type hose clamp.
8. Bleed the air, Have your assistant turn the wheels lock to lock, key on engine off, until the fluid level settles, this may take a little while. Unless you have a vacuum pump with the adapter for the reservoir, in that case apply 10-15 in of vacuum for 20 minutes.
9. Have the wheels straight, start the car, Leave the cap off, observe with a flashlight any change in fluid level or if you hear a squealing sound, shut the car off as the pump is sucking air.
10. Let the car run 10 minutes with wheels straight and off the ground with cap off.
11. Replace cap, lower car and test drive for 5-8 miles, take some extra fluid with you in case of a problem. When you return check the fluid level and add if necessary.

This is what the manual says, I'm sure there's other ways to do this, and just sucking the fluid out of the reservoir and adding new does ALOT and is often sufficient (according to my friend who's a tech at a gm dealer)
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post #21 of (permalink) Old 04-07-2016, 09:10 AM
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Thanks for posting that procedure - that's great info for anyone else looking to completely fluid their power steering fluid!

Please do keep us updated as to how yours is doing over time. You'd think that if the noise goes away, then you wouldn't need a new rack - but I do remember posts saying that replacing the fluid seems to fix it short-term, but it soon comes back - until you replace the rack. Hopefully that not the case if you catch it soon enough though.

Look forward to future updates! Thanks again for posting the procedure as well.

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post #22 of (permalink) Old 04-10-2016, 06:27 PM Thread Starter
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Sure no problem! If you need any specific procedures looked up please let me know!
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post #23 of (permalink) Old 04-10-2016, 06:32 PM
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Everything still OK with your steering? Still no noises here...

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post #24 of (permalink) Old 04-11-2016, 04:55 AM Thread Starter
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Nope all sounds good here! We'll see after a few thousand miles if anything changes.
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