my oil pressure is fine when i start up but when it warms up and i rev the engine the oil pressure guage drops completly what is happening here?
Jul 26, 2010 at 6:18 PM
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BLUELIGHTNIN6
CAR REPAIR CONTRIBUTOR
16,542 POSTS
one of 3 things : either the motor oil is used up and no longer has it's potential for lubricating properly when heated up, the oil pump is weakening and can not pump the heated oil properly, or (most likely cause) the oil pressure gauge on your vehicle is inaccurate and the oil sender unit needs replaced.