M/T Shift tone - NJFBOA - Home of New Jersey's Camaros and Firebirds

fbirdfreak · 10-15-2013, 11:43 AM

Hi all,

I'll get the specs out of the way first:

2000 LS1 trans am 120k miles
Factory clutch/Trans
Tick performance adjustable master cylinder installed 30 miles ago
Car is barely driven 10 miles/week.

So when I go to shift, I will sometimes hear a deep whirring while releasing the clutch or while the pedal is fully depressed for a 3-2 downshift. It is not a grinding, but is constant when it happens until I engage the gear. There are no engagement issues though. I notice it most when going in reverse, as the sound is most noticeable when using the clutch the way you do in reverse. Also as I said it doesn't happen all the time.

Thoughts?

MyFirstZ · 10-15-2013, 12:00 PM

Was the noise there before you installed the tick ?

Sounds like it could be the throwout bearing. They way its intermittent and mostly during engagement/disengagement of the clutch.

Also the cheapest thing to try, everything else is going to be internal

When you get it in the 3-2 downshift is this while the clutch is engage or pedal to the floor. I was driving with someone before the tranzilla mention the coast side of that gear sounds like it was making noise.

Possibly two different problems.... I'd try the slave/throwout bearing first though and inspect the clutch while its out.

Original clutch or stock replacement ?

fbirdfreak · 10-15-2013, 12:17 PM

No it started making this just after the tick was installed.

During the 3-2 downshift it's while the pedal is to the floor and during engagement but goes away after I'm in gear.

And to the best of my knowledge it's a Factory clutch, I'm the second owner and have a ton of paperwork from the first owner however it could have been omitted from my documents I was given

MyFirstZ · 10-15-2013, 02:13 PM

Well I would start with the tick. Maybe call them and tell them your symptoms

Its properly bled?

But still could be the throwout since its on the slave

fbirdfreak · 10-16-2013, 08:22 AM

Yes it's properly bled (to my knowledge) I bench bled it and used a MityVac, and recently checked my reservoir and fluid levels were fine. I'll give them a ring and see what they have to say.