New Engine...Low Oil Pressure

GMperformance03 said:

So the idiot engine shop out of western MI did not fix the problem. I still have low oil pressure (15-20 psi) hot idle, & 40 psi idle at 1,500 rpms.

I will withhold their name until this situation is fixed and/or if I need to get legal representation. Their solution now is to change the block to a cast iron block and their claim is that the aluminum block is defective. Do they even make a 6.2 liter cast iron block?

This is the third engine that they’ve installed and the fifth time the motor has been removed and reinstalled. I have spent almost $1k on rental car expenses in addition to the multiple times I’ve had to drive from Indiana to Michigan.

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GMperformance03 said:

Rebuilding the same block.

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GMperformance03 said:

Just to update...

Supposedly a cam bearing was installed incorrectly causing the low oil pressure issue. I will be picking the Yukon up tomorrow to find out for sure.

The rebuild consisted of (actual ad below):

Block is bored .20 over. New pistons, rings, cam, cam bearings, main bearings, rod bearings, lifters, hv/hp melling oil pump, seals and gaskets, valves, springs, etc... Block gets decked, line honed and heads are checked and resurfaced. Nothing is forgotten or skipped.

After driving Yukon tomorrow I will update this thread.

Thanks for all the great replies.

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Wambliokiye said:

6.2?

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GMperformance03 said:

Anyone have any recommendations on reputable machine shop or engine builders at reasonable prices?

I really am trying to stay away from a 6k-8k engine cost, other than Jasper. Thanks

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