I would like to know if anybody has noticed how long it takes for the oil pressure guage to register pressure on startup on their trucks.

Mine takes approximatley 2-3 seconds when starting cold, first thing in the morning. I plug it in every night. It seems to be about a second faster when truck is warm. I am not sure if this is normal or I have just now noticed it. I can't recall the pressure taking this long to build before.

The pressure seems to be normal, like it has always been, when truck is running. The latest repair was an injection pump approx. 2,000 miles ago. I cant see where that would affect oil pressure.

I am concerned this is a symptom of some sort, would like any input available. Thanks in advance.

 

When its -20 I can count to ten before I get oil pressure, engines runs smooth and doesn't knock. When its 40 out I get pressure instantly.

 

Agreed with above. When it's below zero and colder - regardless of whether the truck is plugged in or not I usually have to wait at least five seconds. Past 45ish* - about 1 second until oil pressure registers.

 

not sure if you ever tried search on the forums but there is alot of info on this subject here is one that was recently talked about..

https://www.dieseltruckresource.com/...d.php?t=286643