Jump to content

Violent Power Steering vibration at stop/idle

BigNickSnr
 Share

Recommended Posts

BigNickSnr Enthusiast

BigNickSnr

Posted
Posted

Hey guys.  2011 Sierra 1500 4WD with just over 200k+ .  I was backing in a trailer and all of a sudden I had a VERY violent vibration when turning the steering wheel.  I immediately stopped and shut it off.  I waited a few minutes and restarted it and there is the faintest groan.  As soon as I touch the steering wheel L or R, the vibration is massive, but not especially noisy in terms of whining.  Fluid level is fine and not cloudy and no CEL.  I've read about possible valves needing changed or filters being cleaned, but never anything with what I describe.  Did the PS Pump simply let go or should I look for something else?  I don't want to spend a day throwing parts at it.

richard wysong Senior Enthusiast

richard wysong

Posted
Posted

Welcome to the Forum! How's the belt and hoses? you might want to have a helper turn the wheel while you watch the belt for signs of slipping.  Is the pump securely bolted to its bracket? Have you jacked it up to see if anythings binding? If all that checks out my guess would be the pump is bad

  • Thanks 1
BigNickSnr Enthusiast

BigNickSnr

Posted
  • Author
Posted

Thanks for the reply and the welcome, Richard!  The belt is fine.  Fairly new with no slippage and the hoses appear fine.  No cracks, dry rot or leaks.  But that's not to say someone hasn't clogged one I suppose.  I am able to tur the steering shaft back and forth form under the hood while the truck is running and the slight movement in either direction causes the vibration and it's certainly felt in the hose.  The sound even changes when you remove the PS reservoir cap which makes me think it's the pump itself.  I just wanted to see if there were other things I should look at before replacing.

thx1138v2 Enthusiast

thx1138v2

Posted
Posted

I had a 2006 Silverado 4X4 with 5.3L engine. It had a device called a "power steering control valve" that fit somehow on the steering shaft. It's purpose was to boost the power steering when sitting still and it was hard to crank the steering wheel over and then reduce the boost when you got up to speed.

 

It worked fine when it was working but when it went out is was a bear to crank the steering over either right or left.

 

You might look into that

  • Thanks 1
BigNickSnr Enthusiast

BigNickSnr

Posted
  • Author
Posted
On 1/18/2024 at 9:30 AM, thx1138v2 said:

I had a 2006 Silverado 4X4 with 5.3L engine. It had a device called a "power steering control valve" that fit somehow on the steering shaft. It's purpose was to boost the power steering when sitting still and it was hard to crank the steering wheel over and then reduce the boost when you got up to speed.

 

It worked fine when it was working but when it went out is was a bear to crank the steering over either right or left.

 

You might look into that

 

Thanks but it doesn't appear to be on the 07-13 models.  I'm just going to go ahead and change the pump and hope that's all.

BigNickSnr Enthusiast

BigNickSnr

Posted
  • Author
Posted
On 1/16/2024 at 9:20 AM, Bad Bowtie2 said:

Check PN# 19418403

 

These trucks still have a steering wheel position sensor too. Just a thought.

Thanks, I looked into that too, but it doesn't seem like the issue.  Gonna change the pump and hope that's all.

  • Like 1
BigNickSnr Enthusiast

BigNickSnr

Posted
  • Author
Posted
On 1/21/2024 at 12:09 AM, richard wysong said:

Keep us posted with the outcome please.

 

My son and I swapped out the PS pump yesterday and all is right with the world again!  That was a weird one though!  I've had PS pumps fail, but never had symptoms like that and certainly never without warning.  I appreciate the responses and support from you all!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • KARNUT
      Vehicle Payments

      By KARNUT · Posted

      This is interesting. My quote tagged here is different from my original quote. After I’m driving them longer. That isn’t me. I don’t talk that way. I definitely wouldn’t express myself that way. Interesting.
    • UrbanRage
      What have you done to your K2 today?

      By UrbanRage · Posted

      I have the same running boards on my truck and I do agree they are bulky. I also find myself stepping over them when getting in and out of the truck. Besides providing protection to the rocker panels, they aren't very useful.  I will be replacing them soon with the Amp Powersteps. 
    • ChristopherDobson
      Vehicle Payments

      By ChristopherDobson · Posted

      Monthly payment is only part of the equation. With today's prices and interest rates, I'd look at the total monthly cost: payment, insurance, registration, fuel, maintenance, and expected repairs. A vehicle that fits comfortably into your budget is usually the better choice than stretching for a higher trim. I've also kept my vehicles longer over the past few years. New cars have gotten expensive enough that driving one for 10+ years, while staying on top of maintenance, often ends up being the most cost-effective approach.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      10 Ford and Chevy engines proven to reach 300,000 miles   You may note a common 3K OCI on this list of gas motors. I skipped over the diesels. Dh'O. 
    • jake111
      Gasser Subforum Has Been Quiet - - So, Regenerative Braking and Using L10

      By jake111 · Posted

      Thanks newdude!  By the time manual selection is needed, I'm probably too much of a control-freak to depend on the transmission sensing braking to activate automatic downshifting.  I would be anticipating the situation and already be manually downshifting.   This truck replaced a 2004.5 LLY diesel with the Allison 5-speed.  Putting it in T/H made noticeable differences (when the torque converter locked, upshift points, downshift behavior).  On this 2024 gasser with the 10L1000 I haven't been able to detect much, if any, difference.  Ok, I can never tell now when the torque converter locks up.  But I also don't notice differences in shifting.  For downhills, I've probably already manually downshifted by then anyway.  Since it's also more awkward (than the 2004.5) to engage/disengage I don't even bother.  Or maybe it doesn't really matter with just a 3k lb. camper in the bed?   Thanks also for the list of reasons the charging system might select various voltages.  However, what I am seeing doesn't fall into any of those categories.  It very definitely, and very consistently, rises after coasting/braking.  Maybe not immediately, but not very long after coasting/braking.  Very consistently drops voltage when no longer coasting/braking.  It might also be interacting with the camper battery charging (I might disconnect the camper and see if it changes the charging behavior).  I also need to recheck turning on headlights for when I want to force it to charge the camper.   Another JR, in June I converted the camper to LiFePO4.  Since it's not a good idea to try to charge lithiums directly using truck, I installed a Victron Orion XS DC-DC charger (which BTW is AMAZING!!).  Being cheap, I only had to buy that one item (besides the battery, of course) to do the conversion.  The camper OEM 120v battery charger (only 19 years old and works perfectly) and the truck feed the input to the DC-DC charger (not at the same time).  But I didn't want the camper charger feeding back to the truck so I kept the old separator.  I considered replacing the separator with a 30amp diode but that means more work and might add another 1/2 volt drop.  One thing that surprised me was the voltage drop over the long 10awg wire run, so I can only charge smoothly at 8 amps (because the DC-DC charger is completely configurable).  Another reason I don't want an added voltage drop with the diode.  I might also be a little lazy but all this work is being done under the sink with a small cabinet opening.    

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...