So I had this guy bring his Pathfinder in last week, complaining of a whining noise from the engine. I'm thinking to myself cool, another secondary timing chain job.... Then I listen to it, and it seems like it would happen on decel of the engine. For instance, rev the engine and left off, and the rpm comes back down to idle there was a noise that best way I could describe would sound something like some sort of vacuum actuator that could actuate and release. squeaking/whine/whipple noise. So it turns out the noise was coming from the oil filter. He had a Mighty filter install that I'm sure came from some quicklube. My guess would be that the filter was going in and out of bypass and the noise is coming from the valve?
Anyone ever seen/heard something like this before
Anyone ever seen/heard something like this before