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filter minder bottomed out... noise?
Old 05-31-2008, 12:33 AM   #1 (permalink)
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filter minder bottomed out... noise?

coming home today I heard a noise I've never heard before... Only happened at WOT in OD above 3000rpm

couldn't really repeat it in 4th, but it certainly didn't sound tranny or speed related.

sounded turbo related... kinda/sorta like surge, but not so much "woof woof" as the turbo whistle kinda warbling slightly. Noticed I'm down maybe 1-2lbs at WOT. Everything else seemed fine. Thought maybe a boost leak that was only exposing at full song? (didn't make sense as it didn't do it in lower gears) Then I thought, well, I guess I found the lifespan of the sps62... I guess ~50k miles of 50-55psi is a pretty good run! but, again, it sounded fine otherwise... no shreeking like the wheel was rubbing, no woof/woof of surge (other than the occasional snap throttle release when jumping out to pass and seeing a car coming! LOL)

now, I've been up against a wall today w/ work running all over hell's half acre, and I've been beating on the ol' girl trying to shave time

earlier today we were flying up and down some gravel roads, and I often drive/work in dusty conditions.

I eye the filter minder every time I check the oil, and it hadn't pulled in despite the outerwear being fairly dirty/dusty.

pulled in and left her running, popped the hood and looked/listened for anything while I let the EGT's cool down. nothing looked out of place, etc.

saw the filter minder bottomed out and reset it and killed the truck.

pulled the little yellow cap out and there's a little white plastic valve/orifice that looks like it could oscillate if it was bouncing against the spring or if it was pulling so hard some air could sneak past the yellow cap.

the AFE race filter is drying right now (didn't look THAT bad, but the pre-filter was NASTY!)

just curious if anyone has ever run into a sound like that and traced it to the filter minder

thanks!

oh yeah, the shaft play on the sps62 feels like it did when I first pulled it out of the box I'd like to thank Industrial Injection for building a hell of a turbo and Shell Oil for their fine Rotella Synthetic
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