1995 z28 transmission problem
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Teching In
Joined: Sep 2012
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From: Gastonia nc.
1995 z28 transmission problem Thanks for taking time to read this. My transmission shifts perfect 1&2 wide open but when it tries to goto 3rd it studers 3 or 4 times before it shifts any ideas. Thanks for your time
Thread Starter
Teching In
Joined: Sep 2012
Posts: 38
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From: Gastonia nc.
I had it built buy curry transmission. It has a shift kit and I think the studer is the rev limiter. I can drive it hard at 3/4 throttle and it shifts hard just like 1&2 but if wide open it will hit the rev limiter. I also have 4.10 gears if that makes a difference new opti spark 8mm wires and pro comp cam 511-276. I have not had it tuned yet but it did this before all this was done. Thank you for any help
Last edited by speed2b; May 4, 2014 at 03:30 PM.
mine would hit the rev limiter going from 3rd into 4th. the rpms would also surge a little at wot towards the top of the gear. I downed my car to replace a bunch of stuff that was on its way out opti, fuel pump, and a leaking injector while it was down I had the computer tuned. when everything was back together it didn't do it anymore so I cant say which one corrected it for me but the tuner did change my shift points from 55,000ish to 53,000ish so my guess would be that is what solved the problem. the gear change without a tune would def confuse the computer and the shift points. fyi hitting the rev limiter is a lot better then an actual shudder from the tranny
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The trans build (mostly clutch clearance and valvebody parameters) has a big effect on how long it takes to complete that 2-3 shift. Not necessarily saying the build is bad; just program your 2-3 command to a lower rpm to avoid tagging the limiter.
Thread Starter
Teching In
Joined: Sep 2012
Posts: 38
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From: Gastonia nc.
Would it be better to take back to them and let them program that in or is that something I can do. Oh I was going to say when the car is cold when I leave in the morning it shifts good it's when it warms up is when it starts doing it
TECH Addict
Joined: Dec 2010
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From: Maricopa, AZ
If you are bouncing off the limiter, lower the shift point. If your trans shop can access your computer then they can tune it. Not sure if they have the equipment though, many (if not most) trans shops don't carry that kind of capability. Do you have TunerCats or TunerPro?
