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 > fluxuating oil pressure gage

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batman69

Virginia Beach, Va

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Posted: 06/10/20 01:27pm Link  |  Quote  |  Print  |  Notify Moderator

Turn on key to start engine. Oil pressure gage bounces from 20 to 40 and back....alarm comes on and chk eng light comes on....can start engine and runs fine......disconnected oil sending unit. Same symptoms.. 2003 Dutch Star...Cummins 350 ISC on Spartan Mountain Master Chassis.....ordered new gage thought was only thing left....plugged in new gage same story.....am hearing eng may have 2 sensors for the oil....can't find but 1.....Called Spartan. They said had heard of such a thing....Talked to Cummins said on had 1 oil sensor listed....Help and Thanks.....

2oldman

New Mexico

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Posted: 06/10/20 01:46pm Link  |  Quote  |  Print  |  Notify Moderator

A fluctuating gauge may need a trip to the shop.

Lwiddis

Mono Basin National Forest Scenic Area

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Posted: 06/10/20 01:56pm Link  |  Quote  |  Print  |  Notify Moderator

That’s what gauges are for...a warning.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watts solar-parallel & MPPT, Trojan T-125s. TALL pole for flags. Prefer USFS, COE, BLM, NPS, TVA, USF&WS, state & county camps. Bicyclist! 14 year Army vet - 11B40 then 11A - (MOS 1542 & 1560)


enblethen

Moses Lake, WA

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Posted: 06/10/20 03:14pm Link  |  Quote  |  Print  |  Notify Moderator

Could be defective sending unit


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batman69

Virginia Beach, Va

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Posted: 06/10/20 03:21pm Link  |  Quote  |  Print  |  Notify Moderator

Rgr on trip to shop....trying to avoid but....seems to be in my future....thanks

batman69

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Posted: 06/10/20 03:23pm Link  |  Quote  |  Print  |  Notify Moderator

Sending unit disconnected...same symptoms ..thanks

haste maker

alabama

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Posted: 06/11/20 05:57am Link  |  Quote  |  Print  |  Notify Moderator

Be best to take it to a Cummins shop, some of their engines use a oil pressure relief value that is inside the engine & they will know how to check it.


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batman69

Virginia Beach, Va

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Posted: 06/11/20 07:56am Link  |  Quote  |  Print  |  Notify Moderator

Thanks Haste Maker... looks like getting there with everyones help..Have a great day...

Ivylog

Blairsville, GA and WPB, FL.

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Posted: 06/15/20 06:23am Link  |  Quote  |  Print  |  Notify Moderator

I would look into a Silverleaf monitor... probably less than taking it in.

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This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.

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Stim

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Posted: 06/15/20 04:47pm Link  |  Quote  |  Print  |  Notify Moderator

The first thing I would do is "T" in a mechanical gauge and mount it somewhere in the engine bay to confirm problem is not the engine.

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