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260SX

07-09-2007 03:34 PM

Fluctuating Oil Pressure Gauge @ 4500...

The Oil pressure Gauge on my Volvo 496 Mag starts to fluctuate as the engine approaches 4500+ rpm. Up to 4500 it runs @ 60 psi, once I hit 4500 it fluctuates between 40-50 psi, if I slow down below 4500 it steadys and returns to 60.
Anyone have any ideas as to the cause--this problem has just appeared this season.

Thanks

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