Oil PSI fluctuation

[txbass06]

Noticed this last night while I was sitting at a RR crossing. Oil level is spot on and only been about 1500 miles since I changed it last
http://i475.photobucket.com/albums/...1B-A586-ABAE2C6BE20F-261-00000091EFB6ACAD.mp4

Is this normal? I know the pressure will change as the temp and rpm changes but this is the first time I've noticed it bouncing around like that

 

[Okiespaniel]

Bouncing isn't...my thought is your oil pressure sending unit.

 

[talon6]

Bouncing isn't...my thought is your oil pressure sending unit.

agreed.

 

[txbass06]

That was my guess too. Just didn't want to start throwing parts at it if there was a common issue that caused it or not. Guess its cheap enough to swap it out and see lol

 

[Okiespaniel]

Unfortunatlly, there's no way to test the sender that I know of, and your symptoms don't suggest anything else like a no buss failure.

Usually a failing oil pump will have no pressure at idle.

You could hook up a mechanical guage if you have one lying around, buying one would be the same as a sending unit...

 

[TexasRammer]

Bouncing isn't...my thought is your oil pressure sending unit.

yup, mine started to do this then just dropped all the way down and quit working. cheap and easy fix

 

[txbass06]

Looks like it is the sending unit. Hooked up an old mechanical gauge to it after I got off work and it was reading a steady 42 psi at idle. I'll run by the parts house to get a replacement and swap it out tomorrow morning since I lost about 10 pounds in sweat this afternoon lol

Thanks for the help guys