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Manual Transmission issue

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Old Jan 26, 2009 | 04:09 PM
  #1  
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St. Jude Donor '09
Default Manual Transmission issue

It is a 01 Vert with 88K miles on her. No mods have been made to engine, exhaust, shifter, tranny or drivetrain. It shares daily duty with 2 other cars.

1st gear and reverse are to the point that we have to force the shifter into gear. 2nd gear from 1st gear is the same way when the car is cold but seams to be fine once the car warms up. 3-6 do not seem to have any problem.

Each time we attempt to put into 1st or reverse is while we have come to a complete stop before attempting to put in gear. There is no grinding noise at any time during this or while the car is moving down the road.

The car moves just fine once in gear so no feel of clutch slipage. This is happening for the wife and me. It just started out of the blue on Saturday morning.

Has anyone had anything like this happen to them?
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Old Jan 26, 2009 | 05:39 PM
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Well I guess spoke to soon about no grinding. I went to back it out of the garage this afternoon. Nothing but grinding noise for reverse and would not go into to gear. Turn the car off and put it in first. Took the other car to work.

Last edited by AM.MSCL; Jan 27, 2009 at 11:03 AM.
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Old Jan 26, 2009 | 06:05 PM
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Mine is starting to get this way. I suspect that the clutch has just gotten thin with age. Mine is at 70K now, so just a bit less than yours.

Kudos to you for getting it to last that long, but it's time to get it open and see if it needs a new clutch.
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Old Jan 26, 2009 | 06:09 PM
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Put the car in 1st gear with the clutch pressed all the way down, rev the engine to about 4000 RPM and see if the car wants to move forward. If it feels like the car wants to creep forward then the clutch is not releasing all the way. If it's not releasing all the way, chances are you have a problem with the clutch hydraulics.
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Old Jan 26, 2009 | 07:15 PM
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Default and the best part is

You really should consider upgrading to a Z06 version trans.....oh and I happen to have one for sale that works just fine!
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Old Jan 27, 2009 | 11:08 AM
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if im not mistaken i think his 01 vert comes with the newer z06 size torque tube already. i just changed my clutch assembly and 250 miles after puttin it back together had to change the TT...
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Old Jan 27, 2009 | 01:37 PM
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Yeah, seems to have non-releasing-clutch symptoms. But, if you have not driven the car hard, the clutch itself should still be okay.
Could be the hydraulics, and you can't get to the slave cylinder without removing half the car!

Before you panic and spend many hundreds of bucks, you might try sucking the clutch fluid out of the reservoir and refilling with clean DOT3This only gets the dirty fluid out of the reservoir, so do it once a day for awhile, and the new fluid will kinda work its way down.

Then you can change the tranny fluid. Use approx 3.5 qts of Dexron 3 ATF. That can sometimes make a big difference.

good luck,
DG
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Old Jan 27, 2009 | 01:45 PM
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I agree.

Changing the clutch and trans fluid is an inexpensive project. It might cure your troubles.

Best of success
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Old Jan 27, 2009 | 02:24 PM
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Cool Thanks guys. Wife asked a valid question as to why would the clutch or tranny fluid only effect 1st, 2nd and reverse but not the other gears.

Now I just need to find a how to on the clutch slave cylinder.
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Old Jan 27, 2009 | 02:37 PM
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Here is a guess as to why this happens.

The gear ratio for 3rd, 4th, 5th, and 6th, is relatively close to engine speed when compared to 1st, 2nd, and reverse. So the synchos are better equiped to mach up the gears.

Changing the fluid will help this process.

while sitting still it, I would think it should be about the same level of difficulty for any gear, but once moving, the higher gears should get easier.

Again, a guess.

HTH
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Old Jan 27, 2009 | 02:39 PM
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Originally Posted by AM.MSCL

Now I just need to find a how to on the clutch slave cylinder.
The rear cradle, diff, transmission, and TT all need to come out to change the slave cylinder. a lot of work.

start with changing fluids. and cross your fingers that it works.
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