OK, Bought a 07 with a couple problems today.

[SpareParts]

This will help you fix the P0011. Don is correct that it's normally an extremely reliable system.

Sluggish oil pressure gauge and 15psi at hot idle are both normal.

Thanks. I have already watched that video.

 

[SpareParts]

Here is a video that might be worth trying if the sender and screen is good

 

[89Suburban]

Nice looking ride.

While nice looking yard of many toys.