Oil pressure sender location

nickb2

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#16
However, get me those codes!!:)

Cuz, if it is coding, you are EGR equipped. If not, Bill and I are also going to be in the weeds.:giveup:$.02:bat:
 
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billr

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#17
I was mainly "in the weeds" about diesels not using EGR. Obviously, I know nothing about this type of engine!
 

EricC

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#18
This is a Duramax diesel in a Kodiak. Hard to find good info on the truck, but the engine should be the same as other GM pickups. They do indeed have an EGR system. I'm wondering about a stuck check valve in the oil filter causing the high pressure. Have you tried another oil filter?