butgoblin

My tranny has been acting up on my 91 RS. When i am flooring it, it doesnt want to shift out of first when it should. It just redlines, not pulling at all for about a second, then it switches to second and i get slammed into the back of my seat. This NEVER used to happen. Anyone have a diagnosis/cure? Thanks.

89IROCZZ4

hey!
That is sort of what is happening to me too. I am scared that I may need a new tranny. What the heck gives? when I floor it it doesn't shift at all. I don't let it rev much further than 6 grand. Help!

85ZZ4TPI

Hey I have this same problem! Any one know anything about it?

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ZZ4 crate motor,Stock tuned port,afpr,700R4 art carr shift kit,3.42 posi drums,Eibach pro kit,poly bushings throughout,yadayadayada

lodavis

have same problem too. someone should know how to fix this. help?

Trigger84

The TH-700R4 was desighned not to shift when the throttle is more than 2/3 of the way open. Try to let off just a little when you need it to shift. If this doesnt work your tranny's clutches may be worn away, so a new tranny (go with a TH-350)may be in your near future. I'm planning on getting a TH-350 for my ride as soon as the old 700R4 dies. I'm willing to give up the overdrive for reliability. The TH-350 is a much better tranny in my opinion.

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---Grady---
1984 Berlinetta.
LG4 305, 170 hp.
Rochester Quadraje(Comp. Controlled)
TH-700R4.
Flowmaster 80 series/ 3" cat-back pipe.
Accel Superstock Coil.
7.5 10-bolt rear/ 3.08's.
Edelbrock signature series air cleaner -w- K&N Filtercharger.
Pioneer head unit, Pioneer front 4X6's, Cerwin Vega rear 6x9's.
Daily Driver.

JoelOl75

Whadddaya mean not supposed to shift??? There's something wrong as any and all automatic transmissions built from the beginning of time are supposed to shift from 1st to 2nd at wot.

When the transmission shifts from 1st to second the band is applied, the intermediate clutch pack doesn't release (it was applied in 1st) and the intermediate sprag holds.

Since the intermediate clutches don't really take much abuse (I could still see the ink print on mine with 110,000 miles on it) I would suspect the band or some internal problem/internal leak.



[This message has been edited by JoelOl75 (edited April 11, 2001).]

chevyboy07 91

try adjusting the T.V. cable. Instructions are in the tech articles