Why is my oil pressure 80?
A PSI over 80 is usually considered too high for the engine to properly be protected from damage. High oil pressure is an indicator that the oil is not able to properly pass through the bores and reach all parts of the engine effectively.
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…
How to fix a Denali XL low oil pressure?
7) Remove the wire harness at the front of the oil pan. It has a bolt on the driver side that secures it and then it slides drive-side out. 3 clips will be there that hold the starter motor and other wires in the harness. Remove them carefully to be reused again.
Where is the oil pump on a Denali XL?
11) With pan out, you will see the pickup tube. It is secured with 2 12mm bolts to the bottom of the engine and 1 10mm bolt up front to the actual oil pump. Don’t strip any of these, if you can. Especially the one up front as it is in a tight location.
What to do if your pickup has low oil pressure?
To determine if the pickup tube o-ring is bad, add 2 extra qts of oil to the engine. If there’s a leak at the o-ring it will now be submerged. Start the engine, let it idle, and see if the problem goes away. If your lost oil pressure is back to normal, you’ve found the problem.
What happens if your GMC Yukon has low oil pressure?
One of the most serious issues that can happen to your GMC Yukon ‘s engine is if ends up with low oil pressure. Low oil pressure will cause the engine to seize up. When the oil pressure light on, it should be assumed that the engine locking up is imminent.
7) Remove the wire harness at the front of the oil pan. It has a bolt on the driver side that secures it and then it slides drive-side out. 3 clips will be there that hold the starter motor and other wires in the harness. Remove them carefully to be reused again.
11) With pan out, you will see the pickup tube. It is secured with 2 12mm bolts to the bottom of the engine and 1 10mm bolt up front to the actual oil pump. Don’t strip any of these, if you can. Especially the one up front as it is in a tight location.
To determine if the pickup tube o-ring is bad, add 2 extra qts of oil to the engine. If there’s a leak at the o-ring it will now be submerged. Start the engine, let it idle, and see if the problem goes away. If your lost oil pressure is back to normal, you’ve found the problem.