Good afternoon,
The pump is external in the housing that holds the oil filter. There are 2 gears there that make up the oil pump.
https://www.2carpros.com/articles/high-or-low-engine-oil-pressure
The oil pressure relief valve is in the front cover which will require removal of the front cover.
I attached the procedure below for you for the repair.
How hard? If you have never done one, it will be hard. It is involved. The book time at a shop is 4 to 5 hours plus parts.
Roy
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Tuesday, April 27th, 2021 AT 12:36 PM