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 Steering shudder, pump or rack noise?

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The Roadmaster
cumminssmoker
DEMonte1997
skymilerjc
Abaddon
VJD2
robotennis61
Eldo
duckstu
BMD
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Rickw
curious riv
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1995 Riv
ibmoses
97rivsc
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99Rivman
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1998 Riv
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AuthorMessage
The Roadmaster
Enthusiast
The Roadmaster


Name : Carl Alexander
Location : Detroit, Michigan
Joined : 2011-12-15
Post Count : 128
Merit : 8

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyMon Mar 05, 2012 6:41 pm

Eldo wrote:
Very nice post, Carl. As Aaron pointed out, it fits nicely without needing to scroll right & left.

I don't remember if I ever posted my results, but just as a caution I should mention that I have that same TSB for my '97. I replaced both hoses, the fluid, AND the pump, yet it didn't cure the problem... I still have at least one or two episodes per driving cycle.

If a post does appear too wide, press CTRL and the minus tab until it does fit. Count the number of times you hit minus and when you are through press CTRL and the plus tab the same number of times to return to normal. You can take back control of your display that way.

As for the groan, it has been getting better with the addition of the Lucas treatment. I'll probably flush the system and try the synthetic fluid in another month. I'll keep you posted on the progress. Too nice a car to have that sound as an asset.

So, I have an air shock that is showing a sign it may be starting to leak. AC's or Monroe? I like the ride as it is and am not looking for more of a performance ride, Suggestions?
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AA
Administrator
AA


Name : Aaron
Age : 47
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18452
Merit : 252

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyMon Mar 05, 2012 7:43 pm

Quote :
If a post does appear too wide, press CTRL and the minus tab until it does fit. Count the number of times you hit minus and when you are through press CTRL and the plus tab the same number of times to return to normal. You can take back control of your display that way.
That's why we have the 720px rule at this site - no member should be required to zoom in/out to see a variety of incorrectly sized images. We put that responsibility on the one who posts the image, to get it right the first time, like you did. A little forethought can prevent tens of thousands of unnecessary display adjustments by users. Think of all the time you're saving people!

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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http://www.cardomain.com/ride/657082/4
Eldo
Expert
Eldo


Name : Mark
Age : 59
Location : West Salem, Oregon... FINALLY
Joined : 2009-04-09
Post Count : 3176
Merit : 104

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyMon Mar 05, 2012 8:12 pm

The Roadmaster wrote:

As for the groan, it has been getting better with the addition of the Lucas treatment. I'll probably flush the system and try the synthetic fluid in another month. I'll keep you posted on the progress. Too nice a car to have that sound as an asset.

So, I have an air shock that is showing a sign it may be starting to leak. AC's or Monroe? I like the ride as it is and am not looking for more of a performance ride, Suggestions?

I'm surprised Aaron didn't chime in on this, but I believe that the Monroe MA822 has
the conical GM quick-connect air fitting - so you can slap 'em in without an adapter kit.

I did a little googling for you, and the Monroes show up as anywhere from $60-100/pair.
I got more than one part # for the Delcos, but they were still in the same price range as the Monroes.

Personally, I'm torn - if I thought the Delcos were still US-made I'd say buy them because we've all
gotten good life out of them. If, however, I found out that GM had offshored these shocks just like
their water pumps and the Monroes were still American, I'd buy those...

Have fun! pirate
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LARRY70GS
Aficionado
LARRY70GS


Name : Larry
Age : 68
Location : Oakland Gardens, NY
Joined : 2007-01-23
Post Count : 2193
Merit : 150

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyTue Mar 06, 2012 11:40 am

I have the Monroes (MA822) that I bought from www.rockauto.com. I have yet to install them, but yes, they have the conical GM fitting, and the box says "made in the U.S.A.

_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
https://www.youtube.com/watch?v=sfT2tEO4XcU
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The Roadmaster
Enthusiast
The Roadmaster


Name : Carl Alexander
Location : Detroit, Michigan
Joined : 2011-12-15
Post Count : 128
Merit : 8

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyTue Mar 06, 2012 4:12 pm

Thanks Larry, Just ordered the Monroe MA822's ... $57.79 with free shipping from Amazon.

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Mr.Riviera
Expert
Mr.Riviera


Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyFri Jan 25, 2013 11:54 pm

Ordered the "new" style power steering line that was outlined for mine in the TSB. Pat# 26059162 and im installing it tomorrow.

Ever since i installed my new rack and pinion i have been having the steering shutter. Probably due to tighter tolerances. either way its annoying.
Im also hoping it will reduce some of the power steering whine. Had that since i bought the car and ive had 3 different ps pumps rolleyes
new strut bearings is next on the list if this doesnt solve the issue.

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
Steering shudder, pump or rack noise? - Page 4 Dsc_0110
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98riv
Moderator



Location : USA
Joined : 2007-01-14
Post Count : 995
Merit : 30

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptySat Jan 26, 2013 3:45 pm

Mr.Riviera wrote:
Ordered the "new" style power steering line that was outlined for mine in the TSB. Pat# 26059162 and im installing it tomorrow.

Ever since i installed my new rack and pinion i have been having the steering shutter. Probably due to tighter tolerances. either way its annoying.
Im also hoping it will reduce some of the power steering whine. Had that since i bought the car and ive had 3 different ps pumps rolleyes
new strut bearings is next on the list if this doesnt solve the issue.

Take some pictures of the replacement if you can.

_________________
1998 Supercharged Riviera - Custom CAI, Alpine spx-13ref, Infinity 6x9's, Alpine 4 Channel Amp, Kicker KX3, Silverstars, STB, Hawk Brake Pads, Monroe Air Shocks, KYB GR2
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Mr.Riviera
Expert
Mr.Riviera


Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptySat Jan 26, 2013 4:31 pm

98riv wrote:
Mr.Riviera wrote:
Ordered the "new" style power steering line that was outlined for mine in the TSB. Pat# 26059162 and im installing it tomorrow.

Ever since i installed my new rack and pinion i have been having the steering shutter. Probably due to tighter tolerances. either way its annoying.
Im also hoping it will reduce some of the power steering whine. Had that since i bought the car and ive had 3 different ps pumps rolleyes
new strut bearings is next on the list if this doesnt solve the issue.

Take some pictures of the replacement if you can.

Sorry i finished the install before i saw your post. still need to get the air out and test drive but the R&R is pretty straight forward. Biggest pain is getting the ends to start threading straight into the rack and ps pump. i cant get a pic of the old hose but it pretty much looks the same as the new one.

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
Steering shudder, pump or rack noise? - Page 4 Dsc_0110
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99Rivman
Aficionado
99Rivman


Name : Randall
Location : North Carolina
Joined : 2007-01-16
Post Count : 2009
Merit : 90

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptySat Jan 26, 2013 7:29 pm

Let us know if it takes care of the shudder when you get it bled. If they are still available, and it fixes the problem, I might give it a try on a couple of mine.
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Mr.Riviera
Expert
Mr.Riviera


Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptySun Jan 27, 2013 3:50 pm

99Rivman wrote:
Let us know if it takes care of the shudder when you get it bled. If they are still available, and it fixes the problem, I might give it a try on a couple of mine.

Didnt take much driving for me to notice it isnt doing it anymore. Really wish i would have spent the $70 and hour of my time to do this a long time ago.
Feels much better in parking garages and when taking slow corners. One of those things you get used to and dont realize how bad it is until you fix it.

You guys are going to think im crazy but the motor actually vibrates less when accelerating now. No idea why. Maybe the ps pump was under such strain it was causing issues at part throttle? Im sure swapping out the rest of the thick lucas fluid with regular (and thinner) PS fluid also helped too.

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
Steering shudder, pump or rack noise? - Page 4 Dsc_0110
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1997riv
Enthusiast



Name :
Joined : 2014-11-23
Post Count : 131
Merit : 0

Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyFri May 29, 2015 1:50 pm

Sorry to bring up an old thread, but I am also having steering shudder at low speeds, especially when pulling in and backing out of a driveway, idling and turning.  Part #26059162 (listed in the TSB) is discontinued everywhere I look.  The GM dealership (won't buy from them, their outrageously over prised) found #26056882 somehow, and that number is listed as an alternate number under the Edelmann, Gates, and Dorman pressure hose on RockAuto.  The ACDelco part number on RockAuto is 36366500 and the alternate is 19147755, I feel like I should buy the ACDelco part since its OE brand but I am nervous to because I heard it might be the same hose I have and fix nothing.  The Edelmann has a 12 month warranty, not really interested.  The other 3 have lifetime.   I remember reading somewhere the new part has a bigger diameter line and its a little longer.  The ACDelco and Gates both have a length of 43 inches, while the Dorman says 30.  Does this mean the ACDelco and Gates are the revised part?  I guess if someone has replaced theirs recently and could give me an active part number that would be great.
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Abaddon
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Abaddon


Name : Scott
Location : Macomb, Michigan
Joined : 2010-02-24
Post Count : 4316
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Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 EmptyFri May 29, 2015 2:20 pm

P/N 19147755 is the GM hose, which is DISCONTINUED. The Delco P/N 36-366500 is the correct hose, which is nothing more than a "sell down" of the GM hose. It's probably cheaper on Rockauto, so I won't bother listing the price.
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Steering shudder, pump or rack noise? - Page 4 Empty
PostSubject: Re: Steering shudder, pump or rack noise?   Steering shudder, pump or rack noise? - Page 4 Empty

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» Power steering pump and rack/pinion failure after adding lucas
» rack and pinion vs power steering.
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» Growling/Grinding/Chuffing/Clicking Sounds From Front End
» 96 RIV Steering Rack Replacement

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