Question about 1994 Dodge Ram

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Oil pressure gauge drops to zero when stopped

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  • rentracing Sep 04, 2008

    2004 Dodge ram 2500 oil pressure drops to zero everyday. This has been going on now for 4000 miles. New sending unit is $47.00 at Autozone.

  • Anonymous Jan 13, 2009

    oil pressure gauge comes on and I am going through abnormal amounts of oil in the truck everyday but cannot isolate a leak

  • lhames62 Jan 15, 2009

    2005 ram 1500 oil pressure goes from normal to 0 with no noise or rattle in engine. started all at once.



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The Oil Pressure switch is notorious for going bad on Dodge truck. I recently change out my oil pump on a 5.2 L engine only to find that I had a faulty switch. The switch for a 5.2L is only 16.99 at autozone and is less time consumming than replacing the oil pump.

Posted on Jan 15, 2009

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2004 gmc envoy. Oil gauge drops to zero when stopping. Car had been running for about 1hour in city traffic.


have the oil pressure checked using a mechanical pressure gauge
most likely a problem oil pressure sender unit or broken wire

Apr 15, 2017 | GMC Cars & Trucks

3 Answers

What causes oil pressure to drop to zero but goes with accelleration


If your oil is full, it's most likely electrical. If it's not electrical, then it's most likely something like a crack in the pickup tube, sucking air if I had to guess.

Sep 11, 2014 | 2000 Jeep Grand Cherokee

1 Answer

Oil pressure drops and truck shuts off


I have to ask if you are sure the oil pressure drops first, or the engine stops first. The engine would stop if the oil pressure dropped below 5psi but only because the fuel pump would shut off. And it should start back up if that were the reason.
If something such as a relay or the ignition module is getting hot and killing the engine, it might have to cool down before it restarts. And the engine would stop then the oil pressure would drop to zero.

Mar 02, 2014 | 1994 Chevrolet Suburban

2 Answers

While drivingoil pressure is at 40. after half hour of highway driving oil pressure drops to 0 or below. i stop and restart oil pressure comes back. ideas?


Could be the Oil Pressure Sending Unit. I do recall GMC having issues with the instrument cluster on 2003's. Try slapping the dash when the gage reads zero.

Mar 17, 2013 | 2003 GMC Yukon XL

1 Answer

My check gauges light is on, oil hands goes over to zero, moves up, light goes off, when it drops back to zero, gauge light comes back on.


Well the warning light is supposed to come on if any of the gauges display a dangerous condition, such as no oil pressure.
You may have a faulty sending unit for the gauge, or a wiring problem, or the engine may actually be loosing oil pressure when the gauge drops.
You could replace the sending unit as a test, or have someone check the oil pressure with a mechanical gauge.

Dec 13, 2012 | 2001 Jeep Grand Cherokee

1 Answer

If pickup tube on the oil pan is bad will my oil pressure drop to zero at stops and at acceleration go back up


IT IS POSSIBLE ,BUT YOU SHOULD USE A MECHANICAL OIL PRESSURE GAUGE TOO COMFORM IT IS NOT A BAD OIL PRESSURE SENDER OR GAUGE

Jul 03, 2012 | 1995 Pontiac Bonneville

1 Answer

Dropping oil pressure


You need to put a mechanical gauge on it to read actual oil pressure, sometimes the sensor is wrong, have seen the gauge be off (even on newer than yours). The first thing anyone would do is the mechanical pressure test with a screw in oil pressure gauge. That would be my advise.

Aug 03, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

The oil pressure gauge drops to zero for about 3 seconds, occasionally. I have noticed that it is usually while sitting at a stop light although it did happen once on a sharp turn while moving. When the...


Two things could be low on oil, or the pick up screen to the oil pump is starting to get clog, I have seen this a few time's on this type of truck here at my repair shop.

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2 Answers

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It sounds like most likely its your Oil pump, if you have no pressure at stop and when you hit gas it sets the C/E light off, Guages in dash wont set off Check Engine Light. Replace Oil Pump.

Sep 03, 2009 | 2000 Jeep Cherokee

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