[noise] drive shaft rubbing? - SOLVED

seatown said:

Seems to be tied to the speed of the drive shaft.
Was under there last night , joints felt pretty tight, shaft spun cleanly. Didn’t see any clear rubbing though

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Geotrash said:

Sounds like either the starter or a cracked flex plate. A pretty common issue on these is the starter drive gear return spring fails and lets the gear bump against the ring gear on the flywheel. It's particularly noticeable under acceleration. Similar thread: https://www.tahoeyukonforum.com/threads/5-3-engine-tick-only-in-drive-reverse.148182/

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seatown said:

Interesting
A little bit different noise, but same reaction to acceleration.

Before I replace the starter is there a way to confirm ?

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Geotrash said:

Yes, but it requires removing the starter and holding it gear end down to see if the drive gear falls down to the end of the shaft. But, if your starter is original, it's not the worst thing in the world to replace it with a new one anyway. Eventually it *is* going to fail, so it's one less thing to worry about.

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seatown said:

replacing starter fixed it.

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Geotrash said:

Glad you got it sorted

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