I just replaced the oil pump in my Yukon and fired it up and oil pressure was good, after about the third time firing it up there was a high pitch squeal from the belt area. Anyone have any ideas why this would happen? I didn't have any noise prior to installing the oil pump, I also replaced belts.
2005 GMC Yukon XL Denali oil pump replacement, issues with high pitch noise.
- Thread starter cally1216
- Start date
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Have you inspected the new belts to see if there is any kind of contamination on the belt surface?
Joseph Garcia
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Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
Take both belts off the motor and start the motor. Any noise?
If no, install one belt and repeat. Any noise?
If yes, you've found the source area of your issue. Is the belt the correct belt part number? If yes, replace the belt Tensioner assembly.
If no noise after installing one belt, remove it and install the other belt. Any noise?
If yes, you've found the source area of your issue. Is the belt the correct belt part number? If yes, replace the belt Tensioner assembly.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
Take both belts off the motor and start the motor. Any noise?
If no, install one belt and repeat. Any noise?
If yes, you've found the source area of your issue. Is the belt the correct belt part number? If yes, replace the belt Tensioner assembly.
If no noise after installing one belt, remove it and install the other belt. Any noise?
If yes, you've found the source area of your issue. Is the belt the correct belt part number? If yes, replace the belt Tensioner assembly.
