Question about 2003 Kia Spectra

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Oil light comes on after car warms up ... has a knock to it at that point ... when car is cold there is no knocking and oil light is not on

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Sounds like the oil pump is shot or your mains have gone.

Posted on Apr 30, 2010

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Posted on Jan 02, 2017

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2 Answers

Knock in cold motor


Not really an issue as I have already said in the other thread.

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Cold knock (then Subsides)


sounds like a crushed valve lifter

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Sounds like a diesel on a cold day


could be a knock sensor or rockers knocking until oil warms up and oil pressure seals the lifters

Sep 27, 2012 | 1995 Chevrolet Silverado 2500

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1994 cavalier 2.2 oil light on-car shuts off when gets warm


blew something in lower end --oil pump damaged --no oil or low level --check oil pressure then do compression test as well --since knocking noise is usually called rod knock

Sep 03, 2017 | 1994 Chevrolet Cavalier

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Car is knocking and was low on oil cold it be the knock sensor out no oiland water mix in the oil


did the oil light come on? it it did that means a low pressure situation which can cause con rod bearing damage. the knock sensor can cause that too.

Sep 25, 2011 | 2001 Dodge Stratus

1 Answer

Oil pressure is good when cold. when it warms up


Does it make any knocking noises? It sounds like the engine is worn to the point where the camshaft bearings or the oil pump needs attention. You might get away with a higher viscosity oil temporarily.

Sep 02, 2009 | 1989 Dodge W150

1 Answer

Engine knock hard over 2500 rpm


Does the oil light come on or the knock occur during the engine warm up after a cold start?
There could be a couple of problems causing the issue. You could have an oil pressure pump or pump pressure regulator sticking. I would have a mechanical oil pressure gauge installed and verify oil pressure at idle and 2500 rpms to make sure oil pressure is in normal ranges.
You could also have excessive piston rod bearing, crankshaft bearing or cam shaft bearing wear that will cause oil pressure to drop too low to prevent the rod knock your hearing at 2500 rpm.
You said a knock and not a ticking noise,so I don't believe a lifter is the issue at 2500 rpm.
Start with the oil pressure check and go from there.
Let me know.
Regards,

Aug 22, 2009 | 1996 Dodge Stratus

1 Answer

Change oil pump 99' Ford Taurus V6-3.0 Station Wagon


does your oil light come on because if your oil light comes on and the the car is cold there is no knocking but when the car warms up you hear the knocking its going to be your oil pump and the oil pump screen

Jul 02, 2009 | 1999 Ford Taurus

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Knocking under valve cover on cold starts


Is there any smoke when you first start it? what is happening is the valve seals are probably worn and letting the oil seep past them. when your engine is first started it has no oil or very little oil at the top of the engine, thus causing the knocking noise. could be more but this is a most likely answer. oh and is you haven't changed your oil every 3,000 miles you had beeter start doing it.... answer knocking sounds usually come from bottom of engine try a better quality and correct viscosity oil

Nov 17, 2008 | Hyundai Motor 2002 Elantra

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