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Premium Member
TBSS 3SS
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1,991 Posts
Discussion Starter #1
I installed corvette servos this weekend and took it out for a drive but may have a problem. It feels like it doesn't shift into 4th gear. Double check the install today and its correct....damn Pain-in-the-ass to take the cover off.

At 60mph my RPM is 2500-2700 and as I shift the level from D to 3 there is no downshift.

I read somewhere if you installs aftermarket servos, to change the transmission line pressure back to stock.

Here are my mods:
1. Stock Transmission
2. Corvette Servos
3. BBA 8-05-2010 tune.

What is the easy way to do this?

Thanks in advance for everyone's help.
 

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Premium Member
2007 AWD 3SS
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8,588 Posts
You messed up the install. If it doesn't shift to 4th, it's not a line pressure problem, in fact it should shift harder into 4th if you replaced the 4th servo.

Two things:
1. Servo installed wrong...
2. Pin length is too short. (since you have 2nd, I would doubt this).

Put the stock servo back in or take it to a trans tech who knows what he's looking at.
 

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Premium Member
TBSS 3SS
Joined
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1,991 Posts
Discussion Starter #3
Thanks for the insight. I will open'r up again to double check my install. I'm confident you are right.

I can't complain enough how much of a bitch is to take off the cover. :doh: Its definitely a two person job.

I appreciate your quick help and your awesome tune.
 
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