Will bad cam bearings cause low oil pressure?
Typically worn rod bearings, not main bearings or cam bearings, result in low oil pressure at idle. If the other bearings are worn, the pressure would be low no matter what the engine speed. The gauge does not commonly go bad, but the oil-pressure sender, mounted on the engine, does.
What kind of oil pressure does a Yukon Denali have?
I have a 2007 GMC Yukon Denali with low oil pressure at an idle. We just put in a new oil pump and pressure still drops I have a 2007 GMC Yukon Denali with low oil pressure at an…
When did GMC Yukon change the oil pump?
If it is an 07-08 take a look into Cam Bearing Problems. The 6.2 engines in these years have had issues with the Cam Bearings in either 2009 or 2010 (don’t remember which but think it was 09) they made some engine changes one of which was a change to the cams to address this issue as well as add AFM and larger injectors to support E85.
How to tell if your Denali oil pump needs replacing?
The best way to tell is to throw a new sending unit on there (assuming the new one is good as well) or use a manual pressure gauge. The L92 was modified with Flex Fuel capability for MY 2009 and became the L9H, and was further modified with Active Fuel Management for MY 2010 (and becoming the L94) in the Cadillac Escalade and GMC Yukon Denali’s.
Why is the oil pump on my GMC Sierra not working?
The oil pump is responsible for taking the oil from the oil pan and pumping it through your Sierra’s engine. When it begins wearing out, its ability to pump oil will be diminished. There is a screen in most oil pumps that keeps large debris from entering.
I have a 2007 GMC Yukon Denali with low oil pressure at an idle. We just put in a new oil pump and pressure still drops I have a 2007 GMC Yukon Denali with low oil pressure at an…
What happens to the oil pump in a GMC Yukon?
The oil pump is responsible for taking the oil from the oil pan and pumping it through your Yukon’s engine. When it begins wearing out, its ability to pump oil will be diminished. There is a screen in most oil pumps that keeps large debris from entering.
Can a 6.2 Denali oil pump be replaced?
The symptom is low oil pressure which can be the all too common sending unit issue or in the case of the early 6.2’s the cam bearing issue. Unfortunately while there has been some cases where I have seen repair work (cam replacement) done to resolve the issue, I have also read of reports of complete engine replacement.
Why does my Yukon have a low oil pressure light?
If your Yukon’s sensor has gone bad, it’ll shoot a false low pressure reading to the ECM. One of the first things that people do when they have the low oil pressure light is to change out this sensor to see if that rectifies the problem. Here’s a good article on how to check the oil pressure sensor from itstillruns.