Unstable Oil Pressure

FORD F-150
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TEXASRED85
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I have a 1997 Ford F-150 V6 186K miles. The oil pressure has become very unstable. When I am not on the throttle, the oil pressure drops dangerously low. As soon as I am back on the gas, oil pressure is back to normal. Or I can put it in neutral and the pressure is back up. The oil pump is less than a year old. Whats the problem?
Aug 20, 2007 at 6:41 AM
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TEXASRED85
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Lower intake gasket failed and let water into cylinder 5. Did a full rebuild and replaced the oil pump while I had the motor out.
Aug 20, 2007 at 7:23 AM
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TEXASRED85
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I could not find a mechanical oil pressure gauge to use. I went ahead and picked up the sending unit since it was only $10. Where is is located?
Aug 20, 2007 at 9:53 AM
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TEXASRED85
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nevermind I just found it
Aug 20, 2007 at 10:04 AM
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