Question about 2002 Jeep Grand Cherokee

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I just bought a '02 Jeep Grand Cherokee and the oil press. indicator is always on H. I heard the engine during idle making a "clancking" sound which i heard before in cars with the wrong oil type in them. What is the first thing i should change or look at to fix the gauge? and can the slicht noise be caused just by the wrong oil type? Thanks.

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I would recommend changing the oil and filter, using the correct oil. It's possible the wrong oil could cause the noise. Wait and see if the oil change has any effect on the oil pressure reading. If it doesn't, change the oil pressure switch or sending unit.

Posted on Dec 31, 2010

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