Low oil pressure
Asked by Joe01040 Apr 02, 2017 at 06:25 PM about the 2004 GMC Yukon XL 1500 SLT
Question type: Maintenance & Repair
I have a 2004 GMC Yukon XL SLT
5.3L at warm idling oil pressure is
between 10 and 15 psi I have
changed sending unit switch, oil
pump and connecting rod bearings
still have low oil pressure at idle
3 Answers
What is the connecting rod bearing clearance? What is the main bearing clearance?
2 people found this helpful.
Sounds like you'll have to replace the main bearings. Like Bob is saying, check to make sure the clearances are within spec.
1 people found this helpful.
Builtnotbought1776 answered 4 years ago
These are infamous for the oil pickup tube screen getting clogged and the oil pickup tube o-ring failing.
6 people found this helpful.