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Oil light comes on when at idle but not all the time

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High temp low oil pressure light comes on after driving for a few minutes, then off when engine at driving rpm. At stop light (idle or low rpm) light comes back on. Normal driving it goes out.


You need to find out why you have low oil pressure. It is normal that as engine rpm's increase, the oil pressure will rise- the oil pump is moving oil faster. Even though your light goes out, you could still have critically low oil pressure. There should be sufficient pressure at idle to keep the light off. The light will come on when your oil pressure is almost nil- I believe for some it's as low as 8 psi. Normally, oil pressure at idle is specified anywhere from 15 to 40 psi. You would have to check specifications for your Expedition. To verify oil pressure, hook up a mechanical gauge at the oil pressure sending unit on the engine block. Check with a local shop.

The causes run from easy, simple to budget busting ruin. Low oil level, wrong grade oil, real old oil, oil leaks, internal oil leaks, worn oil pump, worn crankshaft bearings. It was pretty common on older very high mileage cars to have a fluttering oil light at stops and idle. It was time for a rebuild, or time to look for another car.

Jul 06, 2015 | 2003 Ford Expedition

2 Answers

Oil light comes on if at first i start again it will go off then ok


The oil light should come on while you start the car and then when it starts, the oil light should go off.
Id it is xoming kn at any other time, you may be low on oil and need to check it and add oil as necessary. If the oil level is above the add mark you should be oK. But make sure you check it when the car has been off and idle idle long enough for the oil to drain from the engine and return to the oil pan. If it persists, it could be the oil pressure sending unit or a loose or worn electrical connection. If the light still comes on, take it to a certified mechanic for diagnosis. It could be the oil pump.

Mar 01, 2015 | 2003 Chrysler PT Cruiser

1 Answer

Dodge v10 loss oil pressure ownly win idleing


Old engine tend to wear piston ring in time,if you use wrong viscosity grade oil ,during idling the oil could not reach all moving parts because there is no enough oil pressure in the system,try 30/ 40 oil grade .

Oct 11, 2014 | Cars & Trucks

1 Answer

Low oil light


Low oil pressure red light ? Does it come on when idling in drive ?
Could be low oil pressure or a faulty switch.

Jan 24, 2014 | 2005 Jeep Grand Cherokee

1 Answer

My oil light comes on, but the oil is full. My rpms fluctuate, or idles and wants to shut down sometimes. Can some one help please.


You oil light does not only show when your oil is low, it also indicates when your oil pressure is low. If the light is staying on all the time, even when at a level, higher rpm, then you most likely have a problem with your pressure and the issue needs to be checked pretty soon. If it is only doing it when your car is idling low, then you just need to take care of your electrical/gas or air intake problem first. The oil light will come on if your car is idling low, but it should go off when you get to speed. Does it go off?

Apr 09, 2012 | 1998 Cadillac Eldorado

1 Answer

I have a 2004 jeep liberty, when the vehicle is at a stand still the oil light comes on, as I start to drive and continue to drive the light goes out. Comes on again at times when standing still,...


1st thing to try is to replace the oil sinding unit, if the problem percets then have someone install a manuel oil pressuer gauge to check the oil pressuer at hot idle if oil pressuer is less then 10 psi at hot idle then replace the oil pump.

Aug 28, 2011 | 2004 Jeep Liberty

2 Answers

The oil light comes on at times and goes off as the rpms go up. What can be done about the light?


Maybe your engine is idling too slowly, If the revs are below say 700rpm the low pressure warning light could come on especially when the engine is hot.. If the idle speed is ok try a heavier grade of oil in the engine. Next try a new oil pressure sensor. It's got to be one of these things. Check the engine running temperature . An over-hot engine will cause the oil light to come on too.

Apr 09, 2010 | 2004 Dodge Stratus

2 Answers

Oil light comes on at idle, goes off when driving, oil level full


change oil pressure switch it' should be near the oil filter

Dec 25, 2009 | 2002 Jeep Liberty

1 Answer

The oil level is correct on my 2001 800cc Matiz, yet light comes


it could be your oil preshure is not up to par or some times if your idle goes to loe it can set off your lo speshure light but i just cant be shur so give it a look but do watch it please

Sep 14, 2009 | 2001 Daewoo Lanos

1 Answer

2002 Mitsubishi Lancer Oil Light at Low RPMS.


could be the oil pump, but before you get to that, whens the last time you had you oil changed? is it the right type? was the filter changed to? if the oil is to thick for your engine, the pump could be having a problem pushing it. If its dirty, same thing applies. Next time you change your oil, be sure to use a full synthetic. its a superior oil all around.

Mar 23, 2009 | 2002 Mitsubishi Lancer

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