Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Losing oil pressure


Recommended Posts

I have a 2017 Silverado with a 5.3L (L83) engine in it. I have just over 90,000 miles on the engine and I noticed yesterday the idling oil pressure dropped to 20 PSI. For the life of the motor it’s always been around 40 PSI (unless I really start revving the engine then it will go up to 60). When I start to drive it goes up to about 37-38 PSI but as soon as I bring it to idle, back to 20 PSI. I’m looking for any suggestions as to what this might be. My fear is I lost the oil pump but I’m hoping for an easy fix. Thanks for the help

Link to comment
Share on other sites

This is not a problem.

 

Hot oil pressure is perfectly within the GM spec at 20psi. I would say that this is just the first time you really noticed this.

  • Like 3
Link to comment
Share on other sites

My 2017 5.3 @ 41k miles will read 20 psi. hot idle especially after interstate driving. Normal city driving hot idle reads maybe just a little higher. Normal driving oil psi. runs much like yours slightly under 40 psi. Been that way for I as long as I can remember.

Link to comment
Share on other sites

On 10/9/2021 at 7:52 PM, CamGTP said:

This is not a problem.

 

Hot oil pressure is perfectly within the GM spec at 20psi. I would say that this is just the first time you really noticed this.

 

^^^^^^^

Yes, normal.

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share



×
×
  • Create New...

Important Information

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