Oil Pressure Gauge out

[ccole]

Hello all.
My oil pressure gauge was fully pinned on 80psi for 3-4 days. It was time for an oil change so I went with my standard full synthetic. Since that time it has not functioned showing 0 psi. Prior to 0 psi the gauge would do the ignition power up where it swings to 80 then back to 0. Now it doesn’t move at all.
Any ideas? Sending unit, gauge, or ???
Recommend place to start?
Thanks in advance.

 

[Amaster]

I think that's a gauge issue if I had to guess

 

[gooffeyguy]

Sensor at the very back of the motor near the firewall probably need replacing. My gauge did the same thing but it also had the check engine light on with a code.

 

[Fless]

Sensor at the very back of the motor near the firewall probably need replacing. My gauge did the same thing but it also had the check engine light on with a code.

I'd suspect the sender, too. You might want to disconnect the sender wiring connections and see what the gauge does with it disconnected. However, once your hand has been back there to disconnect it, you might as well change out the sender. You'd be halfway there by then.

 

[ccole]

Thanks guys. I’ll grab one at advanced on my way home today. I hadn’t found time to pull code from my service light. I’ll report the results once I swap sending f units.

 

[Joseph Garcia]

Is there a screen in that truck below the oil pressure sensor? If yes, replace the screen, as well.