Oil Pressure Drops 98 12V
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Diesel Enthusiast
Joined: Jun 2008
Posts: 211
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From: Toms River, NJ
Oil Pressure Drops 98 12V
i was coming back from taco bell 3 mins away from my house and just driving down a back street doing 25 mph at most oil pressure drops to 0 and comes back up. did it again a min later. what would cause this? thanks
BOMBARDIER
Joined: Mar 2007
Posts: 23,293
Likes: 1,322
From: North of You
Jim this is a common problem - my 98 12V has been doing this for awhile now. Usually, the sender just craps out and you have to replace it. I installed a mechanical oil pressure guage in the cab because I was worried and hadnt replaced the sender yet. My oil pressure ranges from 30 psi to around 90 psi (winter months with 15W40 oil):
https://www.dieselbombers.com/12-val...-pressure.html
Anyway, if you have oil in the crankcase, there is a VERY good chance that the problem is the sender. The Cummins p/n should be: 3923200. And the sender can be seen here (OIL PRESSURE SENSOR):
https://www.dieselbombers.com/12-val...-pressure.html
Anyway, if you have oil in the crankcase, there is a VERY good chance that the problem is the sender. The Cummins p/n should be: 3923200. And the sender can be seen here (OIL PRESSURE SENSOR):
Last edited by Dr. Evil; Jul 22, 2008 at 02:21 AM.
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