Oil Pressure

[jakcol997]

Hey guys! Looking for suggestions, my
Oil pressure when I start my car is fine. As soon as I start driving, and it gets up to temp, every time I stop at a light or anything, it bottoms out to zero and my check gauges light comes on. I just replaced my oil pressure sensor. And that didn’t seem to fix it. Any other suggestions as to what it could be?!?!

 

[Mechanic421]

Stop driving it until you test with a mechanical gage.

 

[Mechanic421]

Could be a lot of different things . Is there any audible noise?

 

[jakcol997]

Could be a lot of different things . Is there any audible noise?

No noises. What kind of gauge would I use?

 

[Mechanic421]

Any mechanical oil/transmission pressure gage need a adapter like the end of oil pressure sender. Harbor freight if in a pinch or maybe mail order if you have time to wait.

 

[Mechanic421]

What is your year,make and engine size? Mileage? You can use the old sender to match up a adapter.

 

[drakon543]

when you changed the oil pressure sensor did you make sure the port was clear. if there was build up inside the port. too much buildup inside small port for sensors like the oil pressure sensor can give you odd readings. quickly dropping rpms as in a stop will cut the pressure/flow down obviously but for a brief moment the sensor could read 0. the build up will act like an orifice and choke it down and at the moment the pressure drops the pressure built up at the sensor will release back through the buildup dropping your reading. until the pressure builds back up on the sensor side of the buildup it wont read enough and can trip your light. also x2 on the test it immediately with a mechanical gauge poor oil pressure is a quick road to serious repairs if its not addressed.

 

[east302]

Oil level is ok?

I got the t-shirt on that one a few years back...figured I’d toss it out there just in case.

 

[iCajun]

How many miles on it? Did it just recently start doing this?

 

[jakcol997]

How many miles on it? Did it just recently start doing this?

It has 247K on it, it’s been acting up for a while. And I just got an oil change at the beginning of the month. That thing was such a C#%T to replace if I seriously have to do it again, I’m going to scream, there is NO room in between the firewall and the damn thing