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Why is my oil light coming on when my rpm goes below 1000

Why is my oil light coming on when my engine get warm and go below 1000 rpm

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You have low oil pressure when the oil warms up cam barring or crank shaft barring main barring you can try a thicker oil like 15/40

Posted on Apr 26, 2015

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Posted on Jan 02, 2017

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3 Answers

Oil light on after engine warm-up on idle


this means a mechanical gauge test is required to check actual pressure warm idling if low below 20 psi then the oil pressure pump relief is stuck open or engine bearing are worn

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1999 suburban gage oil pressure is 0 when it warms up. rpm drop to 3-4 rpm when oil pressure goes to 0. Sounds good, runs excellent -no noise. Actually it sound better then most new cars. It is so...


I looked at info for 1500--5.7L engine.
6 psi @ 1000 rpms
18 psi@2000 rpms
24 psi @ 4000 rpms

Sometimes, you can use analog gage in place of oil pressure sending unit and double check oil pressure that way. If oil pressure is actually low, if high mileage engine, I doubt replacing oil pump will help. I just wanted to add, check oil pressure engine warmed up.

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Why does the oil light turn on when rpm drops below 1000


Oil light pops on at low rpm because at a low rpm, your engine is not running fast enough to maintain full pressure. this is because either you have an oil leak, or defective oil pressure switch.

Apr 01, 2012 | 2006 Chrysler PT Cruiser

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My 1996 GMC jimmy wants to stall when I come to a stop. The RPM gage goes up & down then drops below 1000 RPMS and stalls.


I would go down to your local auto parts store and do an alternator and battery test. It sounds like at low rpms you are loosing volts. When you apply the brakes you would be supprised how much power from the engine it takes. You could also be loosing oil pressure. Check your oil level. When your engine drops low rpm, the oil pressure drops and shuts down the engine.

Jan 09, 2010 | 1996 GMC Jimmy

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Oil Pressure Light Comes On after 10 min of Driving


You may not have put the right amount of oil in your car, your oil pressure sensor could be faulty, or you may have a leak.

By revving your engine, you're increasing the pressure and thus turning off the light and making the sensor think that it's at the correct pressure.

Sep 08, 2009 | 1998 Chevrolet Malibu

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Oil light in 1999 Toyota camry comes on when idling.


bad to worn out oil pump or excessive oil passage clearances that allowing more oil to pass thru them at a lower pressure due to the bigger opening. It can be a sign of an emminant engine failure due to oil starvation.

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2002 Lancer OZ Rally...


Check the oil viscosity is correct.

Sep 21, 2017 | 2005 Mitsubishi Lancer

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Low oil pressure at idle


how low does the oil pressure drop?? is it below 40?

Mar 05, 2009 | 1990 Ford F150

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Oil light comes on and "bings" when the tack shows 1000 rpm.


I have no idea how many miles are on the van but 1st lets talk about the oil lite, it is telling u that the engine has less than 10 PSI of oil pressure, this may be the pressure sending unit on the engine is defective, if it does have low oil pressure then severe damage to the engine bearings can result, the click is most likely the contacts in the starter solenoid are burnt, they act up more cold and give the click you hear. I have no idea about the steering issue, without hearing it is almost imposs to diagnose such concerns. In closing I highly recommned that you address the low oil pressure concern ASAP

Nov 30, 2008 | 2004 Chrysler PT Cruiser

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