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While driving along, at times my oil pressure.

Tiny
BOBBY CLEMENTS
  • MEMBER
  • 1988 FORD F-150
  • 158,000 MILES
While driving along, at times my oil pressure gauge will bounce from the middle which is normal to really low then stay in low for a while then bouce back to normal
Friday, March 29th, 2013 AT 12:51 AM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,757 POSTS
The most likely suspect is the oil pressure sending unit. Check the pressure with a mechanical gauge. Intermittently low pressure can be caused by debris holding the pressure relief valve open but more commonly if it's not the sending unit it's due to a spun bearing that occasionally orients itself to block the oil passage in the journal.
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Friday, March 29th, 2013 AT 1:17 AM

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