oil pressure on startup

[gatorman21218]

So Ive noticed recently that my oil pressure takes 2-3 seconds to build when I start my truck. Is this normal or should there be oil pressure when I'm cranking? It was doing it before I did an oil change last week and so I dont think it is the filter draining back. And I just added a quart last night so she is full of oil.

IF there is something wrong, will I do harm to her if I continue to drive her or should I park her til I have time to mess with it?

 

[icanfixall]

Nope... No problem at all. Just don't throw a big ass rev on a cold engine. Crank till it starts and watch the pressure build. Add some throttle to set the fast idle and drive off after a minute or two. These engine oil pumps push almost 18 gallons per minute @3000 rpm so it volume and not pressure that takes care of the idis. The water pumps circulate 34 gallons per minute at 3000 rpm...

 

[gatorman21218]

great thanks. But just to be clear I am talking 0 psi for 2-3 seconds at start up. And yes I have enough sense to not rev an engine right after startup. Even doing a 5 point turn out of my driveway I dont have to hit the throttle. Gotta love a big block diesel

 

[ManicMike]

great thanks. But just to be clear I am talking 0 psi for 2-3 seconds at start up. And yes I have enough sense to not rev an engine right after startup. Even doing a 5 point turn out of my driveway I dont have to hit the throttle. Gotta love a big block diesel

That's normal. Yea on the high idle, I can do the same lol

 

[Kevin 007]

My oil pressure acts the same at start up.

But after a few seconds, I have about 45psi at fast idle (800rpm) and about 15psi at hot idle. And at my cruising speed im usually at 1600rpm which gives me about 35 psi.