No Overdrive
10-01-2012, 03:29 PM
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Car: 1988 IROC-Z28
Engine: L98(383tpi) modified
Transmission: 700R4 rebuilt
Axle/Gears: 3:73 10bolt rebuilt
No Overdrive
I have a 1988 IROC with a rebuilt 700r4. Lately I’ve been trying to figure out a trans leak which I thought was the trans pan seal. Turns out it was the detent cable boot. So I took the boot off the trans housing and put a little RTV sealer around it and tighten it back up. Fired it up and topped off the fluid level. I Checked for leaks, and then took it for a spin and found I have no OVERDRIVE. I even tried to shift it manually but still nothing, other than gears 1 , 2, 3 which seem to shift fine. I didn’t think I really needed to reset my detent cable even though I did take off the TV boot from the trans housing, as nothing had changed. So I’m assuming I need to just reset the TV cable, and everything should be fine? So I was hoping for a little input on this.
10-01-2012, 09:28 PM
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Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
Re: No Overdrive
yup.... anytime its disturbed its best to reset it
10-01-2012, 10:00 PM
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Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: No Overdrive
Wait, did you get the hook re connected to the wire when you took the boot out?
10-02-2012, 12:24 PM
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Car: 1988 IROC-Z28
Engine: L98(383tpi) modified
Transmission: 700R4 rebuilt
Axle/Gears: 3:73 10bolt rebuilt
Re: No Overdrive
I tried to make sure it was still connected when I took it out, but I can just tug on the cable at the throttle body and it should retract right? Also I did take for a spin and as I said it shifts through 1, 2, 3 up and down fine, just no 4/overdrive.
10-26-2012, 12:23 PM
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Car: 1988 IROC-Z28
Engine: L98(383tpi) modified
Transmission: 700R4 rebuilt
Axle/Gears: 3:73 10bolt rebuilt
Re: No Overdrive
Just an update
I reset the detent cable several times and still no over drive/4th gear!
I reset the detent cable several times and still no over drive/4th gear!
10-26-2012, 06:40 PM
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: No Overdrive
http://www.tvmadeez.com/article/index.php
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10-27-2012, 09:25 AM
#8
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Car: 1988 IROC-Z28
Engine: L98(383tpi) modified
Transmission: 700R4 rebuilt
Axle/Gears: 3:73 10bolt rebuilt
Re: No Overdrive
IIRC TV cable doesn't control gear selection ; it controls the shift points and firmness , etc
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