Question about Porsche 944

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I have a 1983 Porsche 944 I was driving and the oil pressure indicates very low so I stop the car and not driving any more gauge is working how to find for shure that the oil pump is bad before remove avery thing? some other thing could be other than oil pump ?

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  • Newerton De Souza Jul 04, 2010

    Thank you very much I will check

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First of all, you need to connect a mechanical gauge to see if you really have a problem. Remove the oil pressure sensor and connect a mechanical style pick-up tube here to confirm. If you still don't have pressure, there are two possible common causes. The first possibility could be a loose crankshaft bolt. The bolt that holds the crankshaft pulley to the crank, actually squeezes the inner rotor of the oil pump and if it gets loose, the oil pump rotor will not turn. Sometimes this bolt is not tightened properly after a timing belt job has been done and you lose oil pressure. The next thing would be a faulty oil pressure relief valve. I'm pretty sure there is an updated unit for this year, very expensive.
Hope this helps,
Dave

Posted on Jul 04, 2010

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