Sorry for the rudimentary question as I am new to the DMF & SMF clutches:
My 01 Duramax has a occasional chriping/squeaking from the transmission when the clutch pedal is depressed. I was quick to jump to the concusion that the throw-out bearing should be replaced when I can get to it. After reading here about the flywheels and other stuff, I want to make sure that I haven't mis-diagnosed and actually this is normal, or worse like a very expensive repair. FYI the flywheel replaced 50K miles ago at the GM dealer by previous owner (now has 129k miles).
The last time I replaced a clutch was about 6 years ago and it was on a Chevy 3/4 ton 4X4 350/SM465/NP208. Took about three days and I remember the PIA it was to lift the trans by a cherry picker with a chain though the t-case opening in the floorpan. Not really looking forward to 3 days on my garage floor again.
Does it squeak only as the pedal is going in and out? Does it do it with the engine off? If so and you get under the truck and have someone push the clutch in and let it out, is the noise coming from the trans? Could be a failing slave cylinder.
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