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dr.donut
User

Sep 8, 2015, 9:57 AM

Post #1 of 11 (989 views)
  post locked   power steering  

I have a 2002 buick lesabre with a 3.8 auto trans that squeals when turning right only , I wondered if it might be the rack & pinion so I turned the wheel in park idling and it didn't do it. It doesn't do it at low speeds or reverse,So I'm wondering if there is a way to tell if it's the power steering pump or not, I don't want to replace it un neccessarilly.Thanks


Double J
Veteran / Moderator
Double J profile image

Sep 8, 2015, 10:27 AM

Post #2 of 11 (979 views)
  post locked   Re: power steering  

Check this out...something to look into...

Click here



dr.donut
User

Sep 16, 2015, 2:34 PM

Post #3 of 11 (929 views)
  post locked   Re: power steering  

I replaced the power steering pump,purged out the line with air from out put line through the rack and out the return and it still squeaks on right turns at higher speeds, I couldn't bring up the video in the one reply so any other help would be appreciated. thanks.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Sep 16, 2015, 4:46 PM

Post #4 of 11 (926 views)
  post locked   Re: power steering  

Did you check out the link above?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Double J
Veteran / Moderator
Double J profile image

Sep 16, 2015, 10:48 PM

Post #5 of 11 (917 views)
  post locked   Re: power steering  

I posted a link to an exact situation as yours.

I've ran into this and as soon as I read it, It reminded me of one we had before.
I remembered one of the Mods here had answered a question like it before and articulated it well

The person had a 99 doing the same thing.

HERE is the original posters question, DanD's answer , and OPs follow up, if you cannot get the link to show


Own 1999 Buick LeSabre (w/ ABS) - 76,000 miles -- always had regular maintenance. Started making a loud noise like a fan blade was hitting metal whenever turned right; sound appeared to come from left front wheel. Had noise checked at both Buick dealer and regular mechanic (we have used both). Neither could pinpoint problem. Mechanic unhooked fan and still made same noise -- thought possible that motor mounts (which appeared to need to be replaced) were bad. Had new factory mounts installed -- did not solve problem. The noise sounds exactly like the noise a fan blade would make hitting metal and only happens when we turn left. They have checked wheels, etc. and cannot find source of noise. This does not affect the driving of the vehicle; just driving us nuts every time we turn right. Also, not knowing if it is something that could be dangerous driving. Any suggestions would really be appreciated.

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This may sound right off the wall here but have them pull the starter motor and check whether the starter drive return spring has not broken. This return spring is designed to hold the starter drive gear away from the engine’s flywheel’s ring gear after the engine has been started. When the spring breaks the starter drive can float on the starter armature and bounce off the rotating flywheel making a sound as you described.
The first one that I found drove me crazy looking for it because we could not reproduce it here in the shop. Like you said it would only do it making turns and no there never was any indication of a starter problem. Why only on turns is because the engine is transverse (sitting side ways) and the g-force of the turn forces the drive to slide out.
The second one that I found was on a 99 Jimmy. Customer’s complaint was that the truck was making a loud noise every time he started the thing in his lane way. Of course it was dead silent when I checked it here; so I told the customer if it did it again too call me and I would go to his home to have a listen. The next morning as I’m driving up to his house I can hear his noise; I also noticed that the lane way had a steep slop and the front of the Jimmy was at least 8 inches higher then the rear. Again with this spring broken the starter dive was allowed to slid back and hit the spinning flywheel. Jimmy’s are rear or four wheel drive and the engine sits forwards between the wheels.
Sorry for the long post I didn’t know how else to explain it?
It'll only take them 10 or 15 minutes to pull the starter back and check this. So if I'm wrong you're not into a big expense.
Dan.
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Dan,
Thank you so much for your reply to my question. You were absolutely astounding correct on your diagnosis of it being the starter. Our mechanic had notified us that he had finally solved the problem just before I viewed your reply (he had our car for two days trying to figure out the problem -- he was extremely frustrated that he could not pinpoint it). Our car is now fixed and when we went to pick it up, I showed our mechanic your reply and he was amazed.

Thanks ever so much again for your prompt reply and amazing diagnosis. Is there any way I can address any future auto questions to your attention? If not, I sure hope you monitor this site so I am lucky enough to catch your attention.


dr.donut
User

Sep 17, 2015, 4:24 AM

Post #6 of 11 (909 views)
  post locked   Re: power steering  

I shall check the starter spur gear retainer, I expected a video at the link provided and I did see the post about the starter but may have ignored it thinking it did not pertain to my problem, being it was " "off the wall " " But it does sound like a metal on metal , who would have though.


dr.donut
User

Sep 23, 2015, 4:27 AM

Post #7 of 11 (880 views)
  post locked   Re: power steering  

I removed the starter and found the spur gear intact and secure, Far as I know a wheel bearing makes a humming sound when worn and noise from a right turn means the pass. bearing(right)?,, don't know about the cv joint never had a bad one. So I think the wheel bearing is next unless there's a change,, for now she just turns up the radio.thanks


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 23, 2015, 5:12 AM

Post #8 of 11 (879 views)
  post locked   Re: power steering  

Some ramblings on this:
*If PS pump was the issue the strong chance is it would be either way car was turned.
NOISES:: {Any are hard to put words to describe precisely}
*Wheel bearing typical sounds/feel: A front in particular will choose one direction of steering at first and descriptive words would include...... Sounds like a growl when moving and turning as weight shifts. Also can sound like it has a knobby tire on just that wheel and could be constant - requires moving along - some so elusive you aren't sure until you hold it in your hands and spin it. Should be silent + no feel at all - none! A new one won't free spin to compare till it's been used on sealed hub styles. ZERO free-play allowed on these types of bearings!
Con't: This one should be easy enough with air tools to remove and check in your hands to rule in or out of this problem.


* CV Joints: Very frequently begin as a crackle with turns under some load and also require moving. May crackle (like a pop corn machine) either direction and I find OUTERS much more common. If/when boots are torn road dirt will get in and be their demise but not right away. Usually called 1/2 shafts are cheaper and lots easier than attempting to replace even a boot!
Cont': If wildly bad they can bust or make wild crack sounds just putting in forward or reverse. Those don't usually last the day!
Inners are more elusive and not necessarily turning aggravates noise. IDK - some may vibrate/shaky feel under load. May not know for sure with it in place and again NO FREE PLAY in this stuff but other things to have some "lash" so know where it's happening if checking by hand and looking.


Other: Not too crazy about flushing out PS systems but rather suck out fluid and refill if fluid is suspect bad as seen usually be foaming too much. This too should NOT care which way you are turning.
Other II: If rack and pinion has some funky issue it might be hard to know for sure. IDK to blame one on just noises I'd change out fluid as said above, try hoisting both drive wheels and turning for feel both engine on and off for clues. Where they mount can be an issue either bushing isolated up to rusted out areas such that they are not held in place.


Those are the most common noises and clues to me. Exceptions always exist.


Causes: No reason at all is #1! Bearings and joints are severely aggravated by being dunked under water for any reason. Problems usually begin months sometimes after that not right away so elusive.


I may be alone but with bearing items including 1/2 shafts with good looking boots new isn't always better that the OE ones. I find it more likely later to replace some Chinese bearing again then a known good and old original bearing so not quick to automatically replace BOTH sides with bearing items,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 23, 2015, 7:12 AM

Post #9 of 11 (873 views)
  post locked   Re: power steering  


Quote
Far as I know a wheel bearing makes a humming sound when worn and noise from a right turn means the pass. bearing(right)?,


No, just the opposite but that method is not foolproof either.



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dr.donut
User

Oct 8, 2015, 12:46 PM

Post #10 of 11 (842 views)
  post locked   Re: power steering  

The squealing was some kind of retainer clip, the mech. fixing the heat told me the small amount of play in the rotor, bearing, caliper was just enough to make contact with this"clip" on right turns only.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Oct 8, 2015, 5:15 PM

Post #11 of 11 (835 views)
  post locked   Re: power steering  

At least it was an easy fix. Thanks for the follow up. Closed as solved. Can be reopened upon request by the OP.

Smile





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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