Power Steering growl

[dna9656]

I have a 2015 Silverado, 5.3, automatic, 4 X 4 LTZ, 4 door truck with 140 odd k miles on it. When turning the steering wheel 2"

to 3" from the center there is a growling sound, the engine slows (the truck won't idle forward or backwards without additional gas.

I replaced the belt on the thing that is located where a conventional power steering pump would be.

I have a Factory Shop Manual downloaded from the Internet, it's not searchable so you have to go through it to find anything.

The book says to pull codes, my scanner can pull tranny and body codes and the engine codes but not codes from the power

steering control module. I think its the belt driven member or the wire harness that also includes the control module.

Your Thoughts... TIA!! 

[newdude]

20 minutes ago, dna9656 said:

I have a 2015 Silverado, 5.3, automatic, 4 X 4 LTZ, 4 door truck with 140 odd k miles on it. When turning the steering wheel 2"

to 3" from the center there is a growling sound, the engine slows (the truck won't idle forward or backwards without additional gas.

I replaced the belt on the thing that is located where a conventional power steering pump would be.

I have a Factory Shop Manual downloaded from the Internet, it's not searchable so you have to go through it to find anything.

The book says to pull codes, my scanner can pull tranny and body codes and the engine codes but not codes from the power

steering control module. I think its the belt driven member or the wire harness that also includes the control module.

Your Thoughts... TIA!! 

 

 

The rack is electric on these.  Motor, module and a belt that is inside the rack from the motor to the pinion/gear setup inside the rack.  

 

Are you getting any messages on the dash like "Service Power Steering Assist"? 

[dna9656]

No messages. Thanks for responding!!!

[dna9656]

Do you know of a diagram of all the components in the shop manual?

[newdude]

13 hours ago, dna9656 said:

Do you know of a diagram of all the components in the shop manual?

 

 

The only component drawings in the manual would be under "description and operation" for the power steering.  But its just an electrical component drawing in there showing what modules are involved for operation.

 

 

[dna9656]

Yeah, there are no messages on the instrument panel. I can't draw codes with my scanner.

The truck just came out of the body shop, I hit a large rock and the RR passenger door, the RR cab corner, the side of the bed, and the running board were damaged. The steering problem started the day I pick the truck up from the shop. I bet they disconnected the battery, could this be the issue?

[newdude]

9 minutes ago, dna9656 said:

Yeah, there are no messages on the instrument panel. I can't draw codes with my scanner.

The truck just came out of the body shop, I hit a large rock and the RR passenger door, the RR cab corner, the side of the bed, and the running board were damaged. The steering problem started the day I pick the truck up from the shop. I bet they disconnected the battery, could this be the issue?

 

 

Did you hit the rock from the right front?  Or was it a sliding it?  

If it hit from the right front, I'd be suspect of a damaged rack.  

[dna9656]

All damage was actually aft of the left front passenger door. I iknow when you weld on modern vehicles you are supposed to disconnect the battery. The driver's seat position presets were gone, reverting else seems unchanged.

Edited August 11, 2025 by dna9656
Word left out

[dna9656]

The 4 X 4 was engaged while the truck was in the body shop, most likely when they cleaned (almost detailed!!!) the truck for delivery. Thanks for the response!!@

Edited August 12, 2025 by dna9656

[newdude]

42 minutes ago, dna9656 said:

The 4 X 4 was engaged while the truck was in the body shop, most likely when they cleaned (almost detailed!!!) The truck for delivery. Thanks for the response!!@

 

 

That will do it!  Didn't even think of that one lol.