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The engine light comes on and off now it appears like it comes on at lower rpm and when higher it's off, intermittently Like low on oil. Has about 75 k miles, regular oil changes with synthetic oil.

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: oil pressure light at low RPM

Before you have major repair done on your car because of the "oil pressure light", review the list and see if any of these might be the source.  Some of the things on this list are things you can do yourself, some only done by a mechanic (inexpensively), and others require the aid of a mechanic.
1.  Check to see if you have a leak.  Low oil levels can make the oil sensor light come one.  Check your oil level following the manufacturers recommended procedure or use the information listed here http://autorepair.about.com/od/regularmaintenance/a/checkoil.htm.  If you do not have a low oil level, but still suspect a leak, place a drip pan under the oil plug overnight.  If you have a leak, you'll see signs of it there.  Then take the vehicle to a trustworthy mechanic and let them trace the leak.  It is possible for your engine to only leak when it is hot, so make sure you get the engine nice and warm before you put the car away for the evening and place the drip pan under your vehicle.  Other signs of an oil leak are listed below as well as an "oily" exhaust that leaves it mark on your bumper or "blue smoke" as you drive/idle.
2.  Check the coolant levels. If the coolant is low, the oil will heat up faster and cause a viscosity breakdown.  When the oil viscosity is low (= thin oil), the oil sensor light can come on.  If the coolant is low, add more.  Keep in mind that an engine running hot will heat the engine oil to the point that it thins out and burns off in the cylinders.  If the coolant level is fine, have the coolant (water) pump checked.  If the coolant is not circulating well through the engine, you'll probably have coolant boiling over, too.
3.  If you can afford to do it, change your oil to a higher or lower viscosity.  Refer to your maintenance manual and your trusted mechanic. I say this because, if your oil is thinning out too much because the viscosity is too low, your "check oil" light will come on.  If your engine oil is too thick, you engine will need added internal pressure to get it to circulate.  At lower RPM (just like thin oil), your engine oil light will come one.
4.  Have the oil pressure checked by other than an electronic means.  Your trusted mechanic can place an oil gage between your oil filter and the rest of the engine or on the oil fill cap of the engine.  If you are having an oil pressure problem that is seal-related, that should narrow it down.  If you can't afford to do that, when you get your next oil change, replace: the oil fill cap, PCV valve, and air filter.  All these contribute to the measurement of engine oil pressure by that picky little oil pressure sensor.
5.  Have the oil pressure sensor checked.  You may need some weird add-on to make it behave.  Do a search for the following part and read and you should have a better understanding: "part # 05017800AA a terminal/wire/vent to the oil pressure switch connector".  Never forget that sensor are usually engineered to report a problem well before a catastrophic failure can occur.
6.  If you're driving a high-milege car, make sure you are up to date on all of the engine-specific services.  For some vehicles, it is recommended that the head gaskets are replaced.  If you have internal engine leaks because of it, this will solve most of those issues.  Signs of this include: coolant visible in the crankshaft area (you can see this with the oil cap off), oil fouling your coolant (you can see this in the coolant reservoir), or smokey exhaust.  Expect your trusted mechanic to recommend that you change your spark plugs, timing belt, and cam shaft gasket at the same time.
7.  See if the oil pump needs to be replaced.  A faulty oil pump can contribute to low oil pressure as it fails (but hasn't failed, yet).  
8.  Do all of the above BEFORE you take to recommendation to have your engine replaced.
I have a 1998 Chrysler Cirrus (I know it's not a minivan, but hear me out).  I've been the single owner and have learned more about how engineering oversights or over-cautiousness can send you to the mechanic for just about everything.
Hope this helps!

Posted on Jan 20, 2009

  • 202 Answers

SOURCE: bmw 323 'r' reg e36 engine oil light flashing

your oil pressure switch is a great place to start. since the oil was really thick you could have a horrible oil sludge problem. about 50-100 miles before your next oil change take a bottle of Transmission Fluid and dump in with your oil. and Drive for the remaning 50-100 miles with the Trany fluid still in the oil. The Transmission Fluid is a great Cleaner for sludge.
hope this helped you

Posted on Apr 29, 2009

  • 155 Answers

SOURCE: Engine light stays on 2005 Chrylser Town/Country

If the Check Engine light is on, your vehicle will should have fault codes stored in the computer. Have a service tech perform a diagnostics test on your vehicle to extract the codes. This will give you an idea of the problem. My guess... O2 sensor since your vehicle is running fine. Codes will be necessary to verify.

Posted on Jun 09, 2009

  • 4088 Answers

SOURCE: Oil light comes on intermittantly at idle RPM; off at higher RPM

Probably the engine bearings are getting a little worn. Using 10/40 instead of 10/30 oil will improve idle oil pressure as will replacing the oil pump and cleaning the intake screen. Make sure the idle speed is set correctly.

Posted on Sep 30, 2009

  • 1757 Answers

SOURCE: 98 Dodge Caravan Oil Light/Alarm comes on

Remove, check and replace the Oil Pressure Sensor. It should be located adjacent (just left of) the oil filter.

Posted on Jan 03, 2010

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1 Answer

Willthe bluebird sss oil pump fail after 20 years


It certainly could.
Also, at that age, the bearings and clearances could be getting slack so oil pressure would be expected to get lower.
If oil pressure is high when engine is cold, and low at idle when engine is hot, and high at higher RPM with hot engine, then it's more likely engine wear than bad oil pump.
Low oil pressure at high rpm with hot engine indicates failed oil pump. Best not to run when you have this condition.

Oct 11, 2015 | Cars & Trucks

1 Answer

Oil light comes on and off when in park idling. oil level is fine.


Sounds like a weak oil pump at higher rpm the pump creates more pressure which is adaquate to make the light go out and supply oil to the engine. At lower rpm your oil pump is not creating the pressure needed. Be carefull not to let it idle or sit in park to long this could damage the engine. There is oil pressure sending unit also this is what makes the light come on and it also shows the oil pressure on the oil gage on dash if your vehicle is equipped with gage. The sending unit could be faulty, but play it safe and have your mechanic diagnose the problem.

Mar 22, 2011 | 2003 Nissan Xterra

2 Answers

Everytime we stop at light the oil light comes on then turns off as soon as gas pedal is pressed


The oil lights come on because there isn't enough oil pressure in the engine... When you come to a red light, the engine is at idle in a lower rpm and there isn't enought oil in your engine to cycle, thus creating low pressure, and the indicator comes on, however when you rev your engine or press the gas pedal, the remaining oil that you have in your engine is being cylce because of higher rpm, thus bypassing the oil sensor. Solution to this, is you need to add oil to the apropriate oil level AS SOON AS POSSIBLE or get a oil change before driving this car any longer as major mechanical issue may occur if you do not get this taken care of. You can buy a quart of oil at walmart or your local gas station and add it and get you by until you get it to the gas station. You may want to constantly keep a eye on the oil level as maybe your engine is burning oil, in order to avoid engine break down.

Feb 06, 2011 | Dodge Grand Caravan Cars & Trucks

2 Answers

My car is Volkswagen polo 2001 1.4 automat. After driving 8-10 miles at a low speed(30-40 mile/h) oil pressure warning appear at the dash board. When I push the accelerator the oil pressure warning...


Do not assume that the low oil pressure warning is a false one or that you only have a faulty oil pressure sensor. Your engine may in fact be running with low oil pressure once the oil heats up and thins out. 8-10 miles of running is enough to get the oil hot. It is significant that you only get the low oil pressure warning once the engine oil is warmed up.

If the oil pressure in the engine is low, engine lubrication will be impaired and the engine can be badly damaged so you need to run an engine oil pressure check.

1. How long has it been since you have changed the oil in the engine? If it has not been changed in the past 6 months then change it and change the oil filter at the same time. You must only use the oil specified by VW for that particular engine.

2. When new oil is heated it thins. If it is old and contaminated it will be even thinner when warm. You will get less oil pressure when the oil is thin and hot and more oil pressure when it is thick and cold. Fresh new oil is a little thicker as it has not been diluted with petrol and other contaminants.
Oil pressure also varies with engine speed (RPM). At idle or low engine RPM the oil pressure is lower.

3. OIL PRESSURE CHECK
After the oil is changed the car needs to be run to check if the oil pressure warning still appears. (I suspect that it probably will). If it does appear then an independent oil pressure gauge needs to be connected up to the lubrication system in the car to check the engine oil pressure. This is best done when the engine oil is hot because this is when you are getting the low pressure warning. Any competent mechanic will be able to do this. ( The useless ones will not). The oil pressure can then be properly checked on the gauge at various engine RPM. If there is a low oil pressure reading from the gauge then there could be a problem with the oil pump, the oil pick up or the oil pressure relief valve in the engine.

4. You mentioned that you see the oil pressure warning disappears once you accelerate. I suggest this is only occurring because with an increase in engine speed (higher RPM) the oil pump speed is increasing and the low oil pressure problem is being overcome temporarily. However as soon as the engine RPM drops the oil warning will appear again which means the engine is running with below minimum oil pressure at that RPM.

Even when you get no warning, the oil pressure in the engine could still be running significantly below the optimum level.


5. It is possible that the oil pressure is fine and that the problem is an electrical gremlin as these cars suffer from a variety of electrical faults. However from what you have described I think there is a problem with low oil pressure in the engine and until it is properly checked it is unwise to assume that you are just getting false oil pressure warnings.

I hope this helps.

Dec 13, 2010 | 1999 Volkswagen Golf

1 Answer

When the engine revs up to 4000 the oil light comes on and beeper sounds. this is an audi V6 coupe 1996 make


THAT MEANS ENGINE IS NOT GETTING (FLOW) SUFFICIENT/ REQUIRED OIL AT THE HIGHER RPM. WHEN REQUIRED LUBRICATION NOT TAKES PLACE THE METAL PARTS CREATE MORE HEAT DUE TO FRICTION. THIS WILL LEADS TO OVER HEATING OF ENGINE AND ENGINE GET SEZED.
HENCE PL DONT RUN THE ENGINE AT HIGHER RPM AND DO THE REPAIR IMMEDIATLY.

SOLUTION:.

THE CASES MAY BE,
1.LOW LEVEL OF ENGINE OIL AT ENGINE. PL CHECK THE OIL LEVEL BY CHECKING THE OIL DIP.
IF SO POUR SOME OIL AND CHECK.
2. IMPROPER QUALITY OF THE OIL, WHICH NOT WITH STANDING AT HIGHER RPM.
3. LOWER VISCOSITY (THICHNESS) OF THE OIL MIGHT HAVE USED, INSTEAD OF RECOMMENDED ONE. IF SO OIL IS THE PROBLEM REPLACE RECOMENDED OIL IMMEDIATLY.
4.LOOK IN TO THE OIL PUMP PRESURE ETC., OR CHOKE IN ENGINE OIL FEEDER LINES.

iF NOTHING ABOVE ONE PROBLEM OF ENGINE SHOULD BE MONITOR BY COMPUTER WITH SERVICE STATION.

TAKECARE,
RGDS, JANA

Nov 19, 2010 | Audi 80 Cars & Trucks

2 Answers

Oil preser lowers at lights


Hi there,

That is natural. The oil pressure rises in response to engine rpm's.

Idling at a light? Low oil pressure

55 mph on the highway? Higher oil pressure

Good job keeping an eye on it. And remember to change your oil every 3,000 miles.

Best regards
Mike a6b05ec.gif

Aug 14, 2010 | 2002 Jeep Grand Cherokee

1 Answer

Oil light comes on intermittantly at idle RPM; off at higher RPM. Car was just in for maintenance and oil level appears to be OK.


Probably the engine bearings are getting a little worn. Using 10/40 instead of 10/30 oil will improve idle oil pressure as will replacing the oil pump and cleaning the intake screen. Make sure the idle speed is set correctly.

Sep 30, 2009 | 2001 Mazda Tribute

1 Answer

Check engine light comes on intermittantly.


Take it to autozone and have them scan for you trouble code.

Mar 20, 2009 | 2006 Kia Sportage

1 Answer

Low oil pressue light at low rpm


wrong oil need 10w 40 weight caster oil is best. See right now you have thin oil and in hot weather and hot motor temp . It just gets thiner . now with 10w 40 you will bring it up a bit thus lowering the oil presser and bringing it to a happy medium .

Jul 12, 2008 | 1999 Audi A4

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