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The oil pressure light goes on and off intermittently.

Hyundai 2002 xg350 - oil light goes on and off as I drove home yesterday. I gave it an oil and filter change and it stayed off almost a day. It started doing it again this afternoon, it seemed to stay off longer as I accelerated. I checked the oil level and it is good

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I had a similar problem with my 2003 Sante Fe (intermittant problem, the light went off when I accelerated). I took it to the dealership. They looked for a bad send oil switch (not the problem) as well as some other possible culprits but could not, at first, find what was causing the light to come on (but they did confirm that I had low oil pressure). So, they took the engine apart. What it was was the pan was "dented" upwards, so that less oil was able to come in. It wasn't the bearings. It wasn't the crank case. It wasn't the oil pump. So, they fixed the dent, put everthing back together and . . .it worked! The light went off and stayed off. It cost $337 in labor. I was very very very relieved.

(Apologies if this explanation is hard to follow-I'm no mechanic and am basing my response on my understanding of the mechanic's explanation).

Posted on Jul 15, 2009

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This light is telling you that the engine has low oil pressure, it may just be the sending unit on the engine that is defective, or it might have low oil pressure, since low oil pressure will destroy the engine bearings it is best to find out what is going on right away, replace the oil pressure sender 1st, if the light still comes on, have the oil pressure checked by a mechanic.

Posted on Dec 03, 2008

  • yadayada
    yadayada Dec 04, 2008

    What answer are you looking for? hope you don't destroy your engine love.

  • yadayada
    yadayada Dec 04, 2008

    bonuzzz what does brake fluid ave to do with the oil light?


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DO NOT RUN IT!! Oil light on means no pressure to lubricate engine, even in intervals lack of oil pressure will soon lock your engine. Change the oil pump before running it again

Posted on Feb 11, 2017

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You might have to put more break fluid in.

Posted on Dec 03, 2008

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Posted on Jan 02, 2017

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Hi there, my 2002 Dodge Intrepid's oil light just came on (and STAYED on, no flickering) yesterday when we had a -20 degree day. I didn't warm up the car very good before taking off (maybe 30-40 seconds)....

The thing to do is to remove the oil pressure sender and put a mechanical oil pressure gauge onto the fitting. Start the car (if it will start) and watch the mechanical gauge. If there is no oil pressure or very low oil pressure (less than 5 psi minimum), immediately stop the engine. Engine damage is sure to result with oil pressure that low. The cause of the low pressure will have to be diagnosed and corrected before running the engine again. Causes of low pressure could be worn engine bearings or a worn out oil pump. There could also be a restriction in the oil system such as a clogged filter or clogged oil pump pick up screen in the oil pan. The oil itself, if it is dirty and full of moisture will become like mayonnaise in the bottom of the pan at such cold temperatures and the oil pump will not be able to pick it up.

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Feb 02, 2011 | 2004 Hyundai XG350

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How do I replace the oil pressure switch?

First, check the oil pressure switch's wire to ensure that it's not contacting the belt pulley.

The SMP model runs less than $20 if you buy online

It's about the size of your thumb, and is threaded into the lower edge of the block next to the oil filter.

***Don't forget to VOTE for the guys who take an interest in helping!

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