Question about 1998 Dodge Dakota

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Oil pressure gage reading 0 at idle, when rev'd up to about 1000 to 1500 rpm, oil pressure rises to about 45

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Bad oil pump

Posted on Sep 05, 2008

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1 Answer

Low oil pressure


55 is max (pressure relief)
20 is typical hot engine at 800 idle. and rises as RPM rises.
your post tells neither , temp, or RPM

Mar 06, 2014 | 1986 Suzuki Samurai

1 Answer

2006 Chrysler 300M 5.7 Hemi, all of a sudden the oil pressure has dropped to "0" when in idle or at a stop sign, and the light comes on, then when accelerated the light goes out and pressure resumes, and...


The check engine light means there is a trouble code stored in the car's computer. The first thing is to get this read out, to home in on the problem. Autozone will do this for free I believe.

It is not uncommon for the oil light to flicker at idle when hot, as long as the pressure rises OK at revs. Get an oil pressure reading done by temporarily replacing the pressure sender unit with a pressure gauge, and you can then tell if there is a problem in that area.

Nov 04, 2013 | Cars & Trucks

1 Answer

99 f-350 super duty 4x4 v10. oil pressure gage reads 0 starts and will idle. rev it up it backfires in notwr somewhere


Sounds to me that it has jumped it timeing. This will make you not have any oil pressure and will also make it back fire. You will need to replace the timeing chain and inspect the gears to see if they are worn. And if the show signs of wear change them. You only want to do this onec.

Nov 29, 2012 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

My oil light comes on at idle speed in my SantaFe 2006 CRDi engine


This is not necessarily a problem. If the oil is at correct level and viscosity grade, and the light always goes out with a small (not large) rise in revs, then it could possibly be OK. An engine does not need much oil pressure at idle, say 600-800 RPM.

It could also be a faulty sender unit on the engine, a worn oil pump, or a faulty oil pressure relief valve on the oil pump or in the filter.

To be sure, get an oil pressure gauge fitted to the sender outlet hole, and see what the reading is at various revs. If there is indeed a pressure problem by the gauge, try first a new oil filter. If not it is probably a faulty sender unit.

Aug 27, 2012 | Cars & Trucks

1 Answer

2010 ford f150 oil pressure never changes regardless of engine rpm


electric senders read the full range, you might have a faulty sender or it could be a new design on the pump and oil galleys that provides a consistent oil pressure. or the gauge itself could be stuck..

Mar 17, 2012 | 2010 Ford F-150

1 Answer

The oil pressure gage started registering 1/4 instead of it's normal 1/2 even at 1700 rpm. I FREAKED! Thoughts?


I have an oil pressure gauge that reads in analog, 0 to 150? something like that, any way, it moves like a tachometer, idle down around 10, revs up to 55, 60 when taking off and then settles down at 35 while cruising, I notice a change with heavier oil. Also, I know it will read 55 lbs pressure with 1 qt of oil in there, I tried it. So the pressure gauge has nothing to do with amount of oil in engine. As long as it is full, It should be ok, as long as it is reading pressure, but if the pressure drops off, shut it down and find out what happened, If it loses all the oil, the temp light should come on long before the oil light.

Dec 14, 2010 | 1997 Chevrolet K1500

1 Answer

Need to know what the proper oil pressure when idling and driving for 1994 jeep grand cherokee 6 cylinder 4.0 lt


the pressure will vary, You'll be approx 20 psi at an idle and 45 psi @ 2500 rpm's. If the car has a lot of miles, you can expect slightly different readings. As long as your reading, I would not worry about it. Also when the engine is cold, you'll always have a higher reading until the temp rises to normal.

Jan 21, 2010 | 1994 Jeep Cherokee

2 Answers

Low Oil Pressure on 1992 Chevy 1500 Pickup Truck


Hi! The problem you are outlining is very similar to the Rover V8 (Buick engine). We Brit's are used to the low oil pressure when warm. I presume a complete oil change engine flushed with new replacement filter has been carried out? Maybe a top quality synthetic oil with additive may help. You may take it a little further and replace the oil pump with an after market performance up rated one. If you really are worried about low oil pressure damage whilst in low rev's try Molybnenum Disulphide an oil additive which really reduces friction metal to metal wear particulary in the situation you are describing.
That's the best I can suggest at this moment.
Good Luck! and Happy New Year!
Paul 'W'
Onyer~EDson(:0)~[><

Dec 28, 2008 | 1985 Chevrolet Camaro

2 Answers

Oil pressure gage


At idle, at operating temp is there any ticking from top end of engine? Are there any knocking noises brom bottom end?
If no noises, change oil and add some Marvel oil to clean out galleys. If that dosent work, change oil pressure sendingf unit. Also, if you have a mechanical oil pressure gauge, hook it up and take a direct reading. Oil pressure (in any vehicle) at idle should NEVER be less than 15psi. Generally in 4.0 jeep engines it's never less than 30, with a high reading at driving rpm of about 40-60! (but, you did not mention what engine you have)

Dec 27, 2008 | 2000 Jeep Grand Cherokee

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