Question about Lincoln Navigator

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I strongly don't think the pump is the problem. The vehicle was doing the same thing before a brand new oil pump just put in, thinking that was the issue. This is what I am experiencing.... after a minute of the vehicle idling normal I observed the oil indicator light inside the vehicle fluctuate up, down, up down, then stay down at Low. Shortly after the knocking starts so I would cut off the engine to prevent damages. I also change the oil and install new oil filter.

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Oil pump is just doing it own job: helping pump circulated inside moving part. The oil indicator reports what it receive signal from the oil pressure sensor.
If your oil pressure's sensor is bad, it always reports the bad readings in the indicator.
When the engine is at idle you can open the oil cap to see if oil splattered. Knocking can be from other reasons.
Hope this can help.

Posted on Jul 20, 2009

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Posted on Jan 02, 2017

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