Oil Pressure

[Cailen]

I want to throw this one out there, despite my having a couple other things I'm workings towards on the truck atm.

When my truck is cold (ie after work) oil pressure is pretty steady between 370 and 390 kpa. Once it reaches operating temperature it'll idle at about 140kpa, but will climb to as high as 280 or 290 while accelerating.

I'm aware that this could very well mean I have some slop, but I've heard of this attributed to a faulty sensor before to. I guess I'm just wondering what your guys' thoughts are. What small (see inexpensive) things can I look at before I have to start thinking about more major repairs.

In the last 5000kms I've replaced the pcv value, plugs, rotor, cap, wires, tps, front discs and rotors, re oiled the K&N, cleaned the MAF, done 2 oil changes, and swapped out approximately 3 quarts of tranny fluid, so I'm pretty strapped. I still have the diff fluid and rear drums in the garage and ready to go for when I find the time.

I haven't had any trouble codes pop up since I replaced the CPI btw, and the only problem I've had was with the 4x4 which I have yet to make any progress on (but that's for my other thread!)

[maxwedge]

Put a known good mechanical test gage in place of the sending unit and see what that tells you.

[Gabe25]

What kind of oil and filter are you using? Oil pressure is normally high when your motor is cold and then lower as your motor heats up. Causing the oil to thin out.

[Cailen]

Only FRAM tough guard baby...

jk

I forget what I'm using to be honest.. it's the white one without the grippy crap on the end. My parts store cut up several different filters and put em side by side on their parts counter, and surprisingly this one was the $2.50 filter. I'll edit this when I get home with what I'm using.

I know oil pressure drops once the vehicle reaches operating temp but it just seems excessive to me... 50% on the low end and 25% on the high end. To be honest though I don't know what "regular" operating pressure would be. Is there even such a thing for a vehicle with 200k kms on it?