Oil Pressure Gauge dropping to zero Help!!!
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Professional
Joined: Oct 2010
Posts: 233
Likes: 1
From: Calgary Alberta
Oil Pressure Gauge dropping to zero Help!!!
Its a 92, dodge dakota 5.9L magnum,
I notice that my gauge for oil pressure comes on for a while then dramatically dies after a little while. Its works when the vehicle is cold or just started, then after several minutes it drops on its face. I already swapped the sensor with one from the wreckers but the problem still occurs. Oil levels are good and there are no engine leaks. "I replaced the motor with a rebuilt engine, and its safe to say that it isn't mechanical.
I am confused on what seems to be the problem.
I also would like to mention, when I started the engine, I used a mechanical guage and I seemed to have oil pressure. 45 psi at idle, 60 under throttle.
I notice that my gauge for oil pressure comes on for a while then dramatically dies after a little while. Its works when the vehicle is cold or just started, then after several minutes it drops on its face. I already swapped the sensor with one from the wreckers but the problem still occurs. Oil levels are good and there are no engine leaks. "I replaced the motor with a rebuilt engine, and its safe to say that it isn't mechanical.
I am confused on what seems to be the problem.
I also would like to mention, when I started the engine, I used a mechanical guage and I seemed to have oil pressure. 45 psi at idle, 60 under throttle.
Champion
Joined: Jan 2013
Posts: 4,737
Likes: 374
From: Northwest Louisiana
They're known to fail.
Also, check the connector to the wiring; on my 1988, the oil pressure wire got pushed part way back up into the sensor, and it was driving me batty until I looked into the connector and saw it. Pushed it back from the wire end, and my truck picked up about 20lbs pressure immediately!
RwP