oil pressure swings....weird ones

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Posted by Bruce in BC [108.162.246.188] on Friday, July 14, 2017 at 01:15:09 :

When I fire the truck up cold oil pressure is 60 lbs
On the highway oil pressure is 60 lbs hot or cold
but once it is hot and the revs drop to 500 RPM so does the oil pressure to 20Lbs
also when going up steep bumpy hills the oil pressure will bounce up and down and hit that 20 mark even though the revs are up.

Rear sump low milage cummins 4bt.

Yes I plan on pulling the pan, and at some point will check bearings and what not but on an engine with less than 50,000 miles I am having a job getting my head around what is going on with the oil supply.

Follow Ups:

Re: oil pressure swings....weird ones - Don Williams 09:34:41 07/15/2017

Re: oil pressure swings....weird ones - Desoto61 05:32:33 07/14/2017

Thanks - Bruce in BC 09:04:27 07/14/2017
- Loose wire, bacj engine ground. NM - Chris Case 09:14:09 07/14/2017

Re: oil pressure swings....weird ones - Daryl in Oz 04:28:25 07/14/2017

electric guage - Bruce in BC 09:10:09 07/14/2017
- Re: electric guage - DanH 16:09:13 07/14/2017
  - Thanks Dan - Bruce in BC 18:59:30 07/14/2017
    - Re: Thanks Dan - DanH 22:39:35 07/14/2017

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