Oil pressure pegged at 80 all the time.

[Jonrobinson84]

Hey guys, I was wondering if oil pressure sending unit failures are common on these trucks and if it's a pretty easy fix? My 05 Yukon XL is pegged at 80 all the time.

 

[Sasquatch]

It`s an easy fix if you have small hands, I have catchers mitts for hands and could not remove the damn thing. I called a tiny friend of mine for help and he had it in and out in about five minutes.

 

[treehan77]

Yep common but also common is the stepper motor that runs the gauge failing

 

[retiredsparky]

There are companies on the internet that will rebuild your dash module with new stepper motors and new lamps.

 

[dreww2001]

Had it happen to my 07 Tahoe around 130ish.

 

[Jonrobinson84]

O wow, guess I need to figure out how to trouble shoot and see if its the stepper motor or the sending unit.

 

[mizzouguy]

99% of the time its the sending unit. Don't go tearing into the dash first, do the sending unit.

 

[cmc76]

mine has been stuck since like august, i got a sending unit, but keep reading that you have to pull the fuel line off, so i have been putting it off. can you reach it without taking off the fuel line?

 

[mizzouguy]

I just did mine, a mirror on a stick helps you get a good idea of what you have to do. I used an oil pressure sending unit socket on a swivel, and then a 12 inch extension to my ratchet up above the hood line.
The only thing I had to unhook was the electrical connector on the switch itself, and one other electrical connection near the switch that was making it difficult for my socket to fit on the switch.
No fuel line removal for me

 

[treehan77]

No need for fuel line detach but get ready to tear your wrist up