2nd Gen Non-Engine/Transmission Oil Pressure

[GCurrie]

Hi All, New to the TDR Forum. I just purchased a 1999 2500 4X4 Quad Cab Sport. It is my first Diesel. I notice that when I first start the Truck in the morning, the Oil Pressure seems a little high, but as the engine comes up to temp, the oil pressure comes down a bit. Is this normal? Also, I will be installing an AMS bypass oil filter this weekend. Any tips.



Thanks for the help.

 

[ROADWARRIOR]

Your oil pressure sounds normal. Mine will read 70 to 80 psi when cold and then 40ish when up to temp at cruise and 30 at idle.



Dan

 

[Phil Stuart]

Mine reads about the same according to the dash gauge tick marks.

Seems higher on cold starts then drops off a bit as it gets warm.



Welcome to the Forums



phil

 

[cruiser_2]

I concurr with the others here, Mine runs to the maximum tick mark on my guage in the morning then shortly thereafter when the engine is warm it runs between middle tick mark and last tick mark at cruise. At Idle warm it runs just above the the lowest tick mark when warm. Good Oil pressure is a good indication of the condition of main bearings. As main bearings wear your oil pressure drops dramatically. Hope this helps I have over 453000 miles on mine right now and still have great oil pressure.

 

[PVanderlugt]

I am not sure about the 99, but I now for sure that the 02 is not a true oil pressure gauge, there is a 6 psi switch that sends a singnal to the ecm, after that the ecm drives the pressure gauge. so what you are seeing is what the ecm thinks the oil pressure "should" be based on coolant temperature,rpm, etc. the only tning you know for sure is that you have 6 psi, what is not a whole lot.

Pete

 

[rweis]

I have an 02 and installed a real oil pressure gauge. On start up it is 80 psi. After warm up and a 17 mile drive the idle is 30 psi. After warm up the 2k rpm psi is 60 psi.



The "dummy" gauge follows the real gauge fairly well, but is not totally linear.



Bob Weis