Jump to content

Recommended Posts

Hey fellas,

 

I've been noticing a whining noise coming out of the front-left side of my truck over the last few days. It's been colder lately, around -6°C or so. It sounds identical to a power steering pump that's low on fluid or on it's way out. However, the truck has electronic power steering and does not use fluid. Has anyone here noticed a whining type of sound that increases with engine RPM and figured out what's going on? It somewhat comes and goes, but generally is very noticeable all the time. Would rather figure it out before whatever is causing the sound inevitably gives out or falls apart.

 

Thanks,

Share this post


Link to post
Share on other sites
16 minutes ago, aricketts said:

Hey fellas,

 

I've been noticing a whining noise coming out of the front-left side of my truck over the last few days. It's been colder lately, around -6°C or so. It sounds identical to a power steering pump that's low on fluid or on it's way out. However, the truck has electronic power steering and does not use fluid. Has anyone here noticed a whining type of sound that increases with engine RPM and figured out what's going on? It somewhat comes and goes, but generally is very noticeable all the time. Would rather figure it out before whatever is causing the sound inevitably gives out or falls apart.

 

Thanks,

Water pump seals is my guess via the internet?  It has plagued GM and myself included lucky for me it does not do it anymore......

Share this post


Link to post
Share on other sites

Get a mechanics stethoscope and look for the source of the sound.

Dealer, warranty.

:happysad: 

Share this post


Link to post
Share on other sites

Oil pump?

 

Quote

 

14-06-04-004C: Various Engine Noises During Cold Start and Warm Engine Operation - (Mar 15, 2016)

Oil Pump Cold Start Rrrrp or Rasp
 

The oil pump design has changed from a gerotor gear type pump to a two speed vane type pump for fuel economy reasons. At temperatures of 32°F (0°C) or colder, when the engine has been sitting for a few hours it is possible to have air enter the pump through normal oil drainback. Upon startup the owner may hear a short Rrrrp or Rasp coming from the front of the engine. It is most often heard during a remote start. There is nothing wrong with the oil pump or oil system. No repairs should be attempted for this condition.

 

 

Edited by newdude

Share this post


Link to post
Share on other sites
Oil pump?
 
 
14-06-04-004C: Various Engine Noises During Cold Start and Warm Engine Operation - (Mar 15, 2016)
Oil Pump Cold Start Rrrrp or Rasp
 
The oil pump design has changed from a gerotor gear type pump to a two speed vane type pump for fuel economy reasons. At temperatures of 32°F (0°C) or colder, when the engine has been sitting for a few hours it is possible to have air enter the pump through normal oil drainback. Upon startup the owner may hear a short Rrrrp or Rasp coming from the front of the engine. It is most often heard during a remote start. There is nothing wrong with the oil pump or oil system. No repairs should be attempted for this condition.
 
 
Thanks for that, it does match a lot of the symptoms described there. Strange that it only started doing it the last 2 days after 65,000 kms and a second winter though. Other than that, it does sound similar. I'll see tomorrow when the temperature hits 10 degrees.

Sent from my Moto G (4) using Tapatalk

Share this post


Link to post
Share on other sites
Get a mechanics stethoscope and look for the source of the sound.
Dealer, warranty.
:happysad: 
The dealer/warranty is not a solution where I live unfortunately.

Sent from my Moto G (4) using Tapatalk

Share this post


Link to post
Share on other sites

belt driven Vacuum Pump is my guess. When it goes, either sends metal shavings into the motor as it is plugged into the block oil galley....taking out the motor.....or it sends engine oil into the vacuum line to the brake booster causing a $1900 repair bill.

Share this post


Link to post
Share on other sites
belt driven Vacuum Pump is my guess. When it goes, either sends metal shavings into the motor as it is plugged into the block oil galley....taking out the motor.....or it sends engine oil into the vacuum line to the brake booster causing a $1900 repair bill.
Thanks, I'll check into it. That sounds fairly drastic for a newer truck. Good stuff.

Sent from my Moto G (4) using Tapatalk

Share this post


Link to post
Share on other sites

Update. Turns out it was the alternator.

Share this post


Link to post
Share on other sites
belt driven Vacuum Pump is my guess. When it goes, either sends metal shavings into the motor as it is plugged into the block oil galley....taking out the motor.....or it sends engine oil into the vacuum line to the brake booster causing a $1900 repair bill.
It was not the alternator after all. It was the vacuum pump.

Sent from my Moto G (4) using Tapatalk

Share this post


Link to post
Share on other sites

I'll have to check that out.  I hear the same whine on my 2016 when I remote start.  I might have it all the time, but I don't hear it inside the truck.

Share this post


Link to post
Share on other sites

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


  • Similar Content

    • By mcable2
      Hey guys, I have a 2017 Sierra 2500hd denali 4x4
      Bought new about 2 weeks ago and am finding when I'm climbing in and out of the truck the front seat squeaks.
      It sounds like the leather rubbing on something.
      When just driving it's fine, but shifting myself around or getting in and out there is a squeaking noise?
      Its driving me nuts! The cabin is next to silent except this issue...
       A 3500hd denali i test drove did not have this problem.
      Just wondering if its something simple before i go bothering my dealer....
       
      As a side note I also have a 2017 Yukon Denali and the seats make no noise at all and side by side they are the same seat. 
    • By Goku760
      Everytime i turn on my truck i get a message saying ,"steering assist reduced drive with care"
      I took it to the dealer but they didnt want to work on it sence its lifted and all of the warranty is voided. Sounds like bs to me?? Any one with similar issue ?!?!? Its a 2017 silverado z71
    • By Robert Sutton
      Hey all, I will start from the beginning here. Purchased my new 2017 Sierra Elevation Edition in February 2017. Drove it off the lot with 6 miles on it. This is my first new vehicle so its been a little discerning to me that this has more issues than any used car I have owned before. 
       
      A few weeks after owning the truck, my microphone stopped working for my phone calls and the onstar stopped working all together. My OnStar module died and they replaced it with a new one. About 5 thousand miles later, my trucks radio screen started randomly going black, turning off all sound, then coming back on again. It would resume where it last was, phone call still intact or radio still on the right station. This went on for about 2 weeks then my dash lit up and chimed at me, the radio turned off like it does I get a warning of a Power Steering Failure. I call my local shop and get it in there right away. The drive in, the power steering worked just fine. 
       
      They said the reading came back as High Voltage, they updated the computer and sent me on my way. Fast Forward to 3 weeks later, my truck starts doing the radio off again but this time the dash lights all shut off too. I can't be sure but it seems to do it when its wet outside. It did not have problems after I was in the shop but it was also dry outside. I also noticed when this happens the voltmeter spikes high.
       
      I am dropping my truck off again the Tuesday after Christmas. Does anyone have experience with this before? The shop told me last time they have never seen this before. 
       
      Thanks!
    • By sierra1412
      2017 sierra A/T crew cab I have the most annoying tick noise over bumps, coming from the b pillar behind my left ear and it is driving me brick house, I've pulled at the trim off put my hands on everything made sure everything is tight, stuff rags in between contact points, I've run out of ideas, anyone have an guidance for me, I'm a ex gm technician of 5 years , I know what I'm doing but of course my own truck baffles me..per usual any new bulletins or tsbs?
    • By corduroydory
      Howdy,
       
      My little 4.3 '04 GMC Sonoma is puking power steering fluid (not spraying) when the pump is running. I went camping for a few days, came back to town and there was a puddle under the gearbox. When the pump is not running there is a pretty steady drip off the nut connecting the arm to the gearbox. I can see a curtain of fluid forming above it. When I run the pump and turn the wheel, the fluid just starts oozing right out of that space above the connection from the arm to the box. By the time I have driven 10 miles the surrounding areas of the undercarriage are coated in fluid. The hoses could stand to be replaced, but it would appear the problem is definitely a seal.
       
      I don't consider myself mechanically inclined, but I can do some work. I've changed plugs, oil, carbs; but I need guidance. Plus, I really don't have the money to throw at a mechanic to do something I could conceivably do myself.
       
      My question(s): if the problem is a seal, how much of a pain in the ass is it to fix? Is it worth replacing the seal and if not what should I do? What are the risks of DIY? Will I absolutely need an alignment post fix? What am I looking at for cost; DIY and/or having a garage do the work?
       
      I won't be driving the rig much in the next couple months but until then I kinda need it to get from A to B.
       
      I very much appreciate it.
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Forum Statistics

    192,869
    Total Topics
    2,032,667
    Total Posts
  • Member Statistics

    160,363
    Total Members
    8,960
    Most Online
    guysnydr
    Newest Member
    guysnydr
    Joined
  • Who's Online   99 Members, 0 Anonymous, 455 Guests (See full list)

×

Important Information

By using this site, you agree to our Terms of Use.