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NEW! Technical Info: 4th Gen DRIVETRAIN Technical discussion of fourth generation (2007.5 and up) 6.7L engine and drivetrain questions, solutions and upgrades. For trucks with the 5.9L engine use the appropriate 3rd gen forums.
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Old 01-18-2018
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smokediver smokediver is offline
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Default Oil pressure concern

The 07, 6.7..
Monday, after running all day I noticed oil pressure dropping to 20 or less at stop lights. It's always, under all conditions been a strong 40- 50.
Pulled over, checked for leaks, shut off & checked oil level, all good. Restarted & showed 40+ For 70 home.

This morning, start the truck, kick the tires, get in & it's showing like "10"!..first line above 0.
Climbs Very Little with throttle.
Shut down, restart, 50psi.

I'm sorta thinking gauge issue, but I have heard of 6.7's loosing oil pressure & ruining an engine. But i figured if it lost oil pressure it would be gone & not return with a restart.

Anybody had the experience or any thoughts?
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'07, megacab, 2WD, Dually, 6.7, auto,
Deleted, h&s programmer, jasper turbo, ETE tranny, 400k mi !!
'09, quad cab, Laramie, 2WD, Dually, 6.7, auto. 255k mi
Stock, until...
My Other Truck is a Fire Engine!!
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  #2  
Old 01-18-2018
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Default

Pretty easy to install a manual gauge in the oil filter head. 1/8" npt plug on top of the oil filter.
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Old 01-18-2018
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smokediver smokediver is offline
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True...
Guess I could just leave it there & next time it shows low raise the good & compare.
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'07, megacab, 2WD, Dually, 6.7, auto,
Deleted, h&s programmer, jasper turbo, ETE tranny, 400k mi !!
'09, quad cab, Laramie, 2WD, Dually, 6.7, auto. 255k mi
Stock, until...
My Other Truck is a Fire Engine!!
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Old 01-18-2018
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Clunk Clunk is offline
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Sounds like a good plan...what oil filter are you using?
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Old 01-18-2018
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PIGIRON PIGIRON is offline
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Sounds like the guage
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Old 01-19-2018
HerkyBird2001 HerkyBird2001 is offline
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My 2001 did this. I just put a gauge under the drivers side dash. Just watch it when it does it and keep on trucking.
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Old 01-19-2018
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Install a direct reading gauge, change the filter and cut the can open to inspect the element. Use a great filter always.
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Old 01-20-2018
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Usually keep a supply of fleetguards.
Think last time I picked up a mopar at the chain store.
I suspect the gauge, but know of a guy who bought an engine cause he thought it was just the gauge.
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'07, megacab, 2WD, Dually, 6.7, auto,
Deleted, h&s programmer, jasper turbo, ETE tranny, 400k mi !!
'09, quad cab, Laramie, 2WD, Dually, 6.7, auto. 255k mi
Stock, until...
My Other Truck is a Fire Engine!!

Last edited by smokediver; 01-20-2018 at 05:25 PM..
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