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Oil lights comes on when i idle - Car Audio & Video

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This is not a good sign and theirs only one cheap answer. I'll tell you the cheapest things to do. 1. Change the oil, 10W40 is a little thicker than the recomended 5W30 but it may make more oil pressure in the bad engine. Make sure you get the correct oil filter. Old cars need more often oil changes and The reason for your problem is the oil wasn't changed often enought or when it was needed. 2. Cheak the oil that you drained out is it good and black or is it a tan color ( baby do-do brown ) May be coolant in the oil. ( blown gaskets or cracked major engine parts) 3. Change the oil pressure sending unit switch. ( you only need to do this if the oil change didn't fix it.) 4. Have the oil pressure checked with a mechanics gauge. 5. If the mechanic says it's bad it is. Another engine is cheaper than fixing this engine right. Patch jobs do work but their putting off the end. and maybe not very long.

Posted on Nov 17, 2009

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If the oil level is full, you can try an oil change making sure you have the proper level and type for your motor. Most likely your oil pump is at fault here although it could be a sensor but I doubt this.

Posted on Nov 17, 2009

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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

1 Answer

00 lincon navigator 5.4 oil pressure drop's low and light comes on , engine idles rough when pressure drops ,then pressure return s to normal range ,light goes out ,engine runs perfect. Is it my oil


Sounds more like an engine idle issue than a oil pressure issue. If the engine idle drops too low, the oil pump cannot provide sufficient oil pressure. If there is no oil light when the engine is idling normally, then there is no problem there.

Dec 25, 2014 | 2000 Lincoln Navigator

1 Answer

My car starts hesitates the engine vibrates oil light comes on then sputters and cuts off


run the fault codes . Check for idle speed sensor and MAF sensor. It should be idling around 900rpm and the oil light coming on ( assuming you have enough oil in the sump) will be because of the very low idle rpm not pumping enough oil to maintain pressure.

Jul 21, 2013 | 2000 Pontiac Grand Am GT

1 Answer

Oil light comes on when idling


More than likely, It might be worth giving the oil system a flush out. If the engine hasn't been properly maintained, sludge can build up in the oilways which can restrict oil flow at low pressure.

May 05, 2013 | 1987 Ford Ranger

1 Answer

Oil light comes on when idling oil level is good


faulty oil pressure switch (cheap), worn oil pump (not pumping enough oil at low revs) but most likely worn shells or crankshaft (allows oil to pass too quickly lowering oil pressure - just not noticable when the engine is reving 'cos there's a lot more oil bieng shifted by the pump)

Oct 02, 2012 | Ford Cars & Trucks

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

Oil light on @ idle


its a high mileage engine.
all you need to do is use a thicker oil and the light will go out at idle speeds.

use a 50w sae valvoline racing oil.
plus stp oil treatment.

do that and that light is all gone.

Aug 19, 2009 | 1999 Volvo S80

1 Answer

My 1999 pontiac grand am will idle low, but does not cut off.


Sounds like your oil pressure sensor may be faulty. Or your oil level is very low. Your engine should idle as low as 650 rpm without your light coming on.

Apr 10, 2009 | 1999 Pontiac Grand Am GT

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