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gbmidyear66
03-29-2013, 03:36 PM
I've had my 90 now for 3 years. Since I've had it- it rarely shifts cleanly into 3rd. I had always assumed it was a damaged synchro. I changed the transmission fluid and there was no change in the shift behaviour.

My clutch slave cylinder had already been replaced, but was weeping a little bit of fluid - not enough to need to fill the resevoir more than once a year. I bought a new slave from Jim at Powertorquesystems (very helpful guy) about a year ago - realizing I would eventually need to replace the it.

So - I changed the slave last weekend, and lo and behold it has shifted smooth as silk into 3rd ever since!

I've read of a few others who have had similar transmission behaviour - you might want to take a close look at your slave. Not a big deal to change (just a PITA getting under the car...)

vilant
03-30-2013, 05:36 PM
I just noticed a week or so ago the clutch fluid reservoir hidden behind the ECM. So I ordered new clutch fluid (probably still the original in there). I noticed a squealing a few months ago and thought it was the power steering or the serpentine belt. So I changed the belt and power steering fluid. Today I just noticed the squealing is actually happening when I push the clutch in. Hopefully a fluid change fixes it. If not, looks like I'll have to the same :(.

Dynomite
03-30-2013, 05:46 PM
I just noticed a week or so ago the clutch fluid reservoir hidden behind the ECM. So I ordered new clutch fluid (probably still the original in there). I noticed a squealing a few months ago and thought it was the power steering or the serpentine belt. So I changed the belt and power steering fluid. Today I just noticed the squealing is actually happening when I push the clutch in. Hopefully a fluid change fixes it. If not, looks like I'll have to the same :(.

Sounds like throwout bearing.

Throwout Bearings and Clutch Forks (http://forums.corvetteforum.com/c4-zr-1-discussion/3005470-tech-info-lt5-modifications-rebuild-tricks-500-hp-2.html#post1581480710)

vilant
03-30-2013, 05:59 PM
Sounds like throwout bearing.

Throwout Bearings and Clutch Forks (http://forums.corvetteforum.com/c4-zr-1-discussion/3005470-tech-info-lt5-modifications-rebuild-tricks-500-hp-2.html#post1581480710)
Well, that doesn't look like any easy fix. Figures. Wouldn't mind doing the work if the parts were free. This car is slowly bleeding me to death, lol.