oil pressure gauge

[JIM S.]

Hello, my dad has a 1990, with 130,000 some miles and we have noticed that the gauge does not show much psi. and the light comes on and flickers when comeing to a stop. have any of you experienced the same thing. just today we hooked up a gauge to the port on top of the oil filter and got about 50 psi at idle and 60 or so at 2000-+ rpm. . but that was cold... but should not be much if any less hot. So... I am quite certain everything is ok exept for the gauge. Anyone had a gauge go bad or is this an isolated case?

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1995, 2500, 4x4, 3. 54, auto,130,000 miles, custom fuel plate, boost and EGT gauges, 215 HP injectors, RE-0880, custom 4" from down pipe.

 

[GeneH]

Jim, have not had this problem. It's probably just the oil pressure sending unit or a dirty connector.
The sending unit is located on the drivers side of engine, even with the end of the injection pump but a little lower down on the engine.
Gene
92 350 4x4

 

[NeedMoPower]

Jim, I had the same problem with my gague. Whenever I idled at a traffic light, the light would come on. Everything was fine with the truck... the gague was just a little messed up, but easily fixed. I took it by the local mechanic and took him about 10 minutes to fix so it must of not been to difficult.
cody

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91. 5 4x4, 5 speed, 3. 54 gears, lucas injectors, 12cm turbo housing, K&N air filter, "tweaked" pump, isspro boost and pyro gagues w/A pillar mount, straight piped 3' exhaust

[This message has been edited by NeedMoPower (edited 05-10-2001). ]

 

[R.E. Miller]

Jim,
I had the same problem while towing one day, had to keep going, thought I just bought a motor #ad
Replaced the sender, no more problems #ad


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1992 W-350 Club Cab Dually 3. 5" Jardine, Swiss cheese air box
1992 W-350 8' contractors dump with 3. 5"BD exhaust, 16cm^2 housing, DI pyro&boost
Russell

 

[fastmark]

Jim, My oil guage has shown low or gone down when I give it more rpm. I was told it is a bad connection. I need to clean it. I did get concerned when my light started to flicker at idle. I went back to the heavy weight Amsoil and it stop flashing light. It is probably just the sending unit.

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Mark Faught, 92 ext cab service truck and a 84 crew cab one ton dually with a 91 cummins and NV 4500.

 

[CrewCabDiesel]

I don't know whats with Dodge and oil pressure sending units, but I have quite a few Chrysler products with problematic oil pressure gauges. On all of my heavy abuse trucks I always add a Stewart Warner Mechanical oil pressure gauge in line with the OEM sending unit. I run a minium 35 psi at a idle/full engine temp & 65-70psi at 1500 rpm. Cold it goes right off the gauge past 80psi. I run Shell 15w-40w oil but have been thinking using non dino oil, IF someone can prove its better #ad
.

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1985 DODGE 1 ton Crew Cab W/8' box converted to 4X4 in 1999. Upgraged to a non-intercooled 1991 Cummins Turbo diesel & rebuilt 5 speed Getrag in 2001. Freshly rebuilt and Balanced Cummins, Rebuilt NP205, Rebuilt Injector pump and tweaked, Matched Injectors, 3" New Mandrel Bent Exhaust,no muffler, Borgeson Steering Shaft, K&N Air Filter, 3:54 gears, limited slip rear end, 16" Goodyear GSA Wranglers, 16K Reese 5th Wheel Hitch,and LE Package, OEM Cruise Control, and a Sony CD Stereo. If you want to know why I did all of this, 3 kids and I can't stand F**d and Ch**y. Kyle Hoover ,Fruitport, MI.

 

[unclebilly]

My oil pressure gauge also thinks it is a tach and the oil pressure light thinks it is an idle indicator - I'm pretty sure this is part of the reason the previous owner sold it so cheap.

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91. 5 CTD 4X4, 5" Stacks, Tweaked Pump, 33" Boots (in the summer), Unlimited Slip,
Big, Bad Dodge