Question about Jeep Grand Cherokee

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When braking the oil gauge will read at it's lowest point and a warning ding will sound but when under power and driving normal speeds it works fine.

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It is normal for the oil pressure fluctuate. this is caused by the oil pump not turning as fsst and pushing less oil. When the pressure starts to dip really low it is cause by the bearing wearing out and not holding the pressure. bearings normally wear out for two reasons, one is that it really high miles on the engine, the other is running it to low no engine oil. If you don't have really high miles , then I would look at the oil sending unit first. they can get clooged up and give bad readings.

Posted on Nov 15, 2010

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