oil pressure
 

ok so i took my truck to the shop the other week and i was told i need injectors and oil pump. well i replaced my injectors and oil pump last night and when i start the truck the guage takes about 30-40 seconds to come on. i have a code for the guage being bad im thinking it just sending unit just want to see if anyone has had the same problem..

Do you have a way to confirm oil pressure with a mechanical gauge? That would be the best thing to do.

there is a port on top of your oil filter neck. i believe it is a 3/8 port not sure on that number but buy a mechanical guage and screw it into the port and you will have oil pressure right off the filter please note this is right off the filter it wold just be there to show you that you have oil flowing! you can have 60psi there and 0 at the original gauge if all your mains were out. but you can use this port if you just want to make sure it is the gauge not the new pump. this is locatted right next to where your turbo oil line comes out at. i used mine for an oil temp guage.

The plug on the oil filter housing is 1/8" NPT. I use that one for feed to my second turbo.

I am going to try and get a gauge tonight to make sure everything is good. I also have a fluttering wen I'm slowing down and can't figure out for the life of me what's going.

yup i would deffinatly get a mechanical guage and i would not be running the truck at all untill you get the gauge just incase you really hve no oil pressure. 1/8 Npt ill remember that thanks!