f150 losing oil pressure

2000 FORD FIVE HUNDRED
114,000 MILES • V8 • 4WD • AUTOMATIC
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HAILEY45769
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hi i have a 2000 ford f150 supercab 4x4 with a 4.6litre triton (romeo) motor. when it warms up i completely loses oil pressure. now i can shut it off and then start it right back up and i will have oil pressure again for about 30 secs to a min. i changed the oil filter from a motorcraft to a stp and put 10w-40 motor oil in it and it still does the same thing..
Jun 6, 2011 at 6:15 PM
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CJ MEDEVAC
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See if anything in this answer might help you.

https://www.2carpros.com/questions/1995-ford-explorer-after-repairs-oil-pressure-drops-to-0-at-idle

The Medic
Jun 6, 2011 at 6:39 PM
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HAILEY45769
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i also ran a gauge test and the oil pressure does go clear out
Jun 6, 2011 at 7:14 PM
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HAILEY45769
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and it does not change if i rev the motor or not..
Jun 6, 2011 at 8:44 PM
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CJ MEDEVAC
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So you are saying with a mechanical gauge installed, pressure drops to "0" (ZERO?)....Does not come back up?

If this is the case, are you experiencing Engine Rattle/ Clatter/ or Knocking????

The Medic
Jun 6, 2011 at 10:19 PM