My 2003 Chevy Silverado is saying low oil pressure and is down at 0psi and has a lot of grinding. once I start driving it for about 2minutes it finally kicks up to about 30psi and the grinding stops.
The only way to fix is to install a new oil pump but since it does start to pump after two minutes there is something you can try no promises
Its called Lucas Engine Oil Stabilizer like I said no promises but it is worth a try.
I know it worked on a vehicle I was working on the had a very load and constant tap after 45 minutes to an hour the tap was gone.
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