Check your adjustment on your throttle valve linkage-after you mentioned you
didn't have a "kickdown" either, it's a real good chance that this linkage
is out of adjustment. How is your 1-2 shift under normal acceleration? It
should shift between 25 and 30 MPH. I'm guessing that it is a real quick
shift which means your linkage travel is too short. The govenenor of the
transmission will partially take over if the adjustment is off but your
shifts won't be right. Another way to check if it's the linkage or an
internal trans problem is try manually shifting the trans. If your shift
quality is better that way, you can almost be assured that the linkage is
out of adjustment.
Steve Miner
Miner Auto Service
Winnebago, MN
----- Original Message -----
From: "Philippe Courant" <accf-club@xxxxxxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>; "Fwdlk" <L-FORWARDLOOK@xxxxxxxxxxxxx>;
"Chrysler 300 Yahoo List Server" <Chrysler300@xxxxxxxxxxxxxxx>
Sent: Wednesday, June 18, 2003 5:16 PM
Subject: IML: runaway on 2-3 upshift ('57 Torqueflite)
> hi,
> After my squealing brakes problem (i have no time since monday to fix
> it...) i had also another problem (which in fact i 've since i
> overhauled the trans. some years ago but more noticeable this damned
> monday) : an overspeeding of the engine every time the trans. upshifts
> from 2 to 3. Only a 1/2 second but not a very good thing for the engine
> .. As you think the runaway is much noticeable if the upshift occurs at
> a higher speed.
> If i look at the trasnmission power flow i note that when the trans must
> shift from 2 to 3 you must have simultaneously a disengagement of the KD
> band and an apply of the rear clutch (front clutch remains engaged). it
> seems that on my car the two actions are not simultaneaous... Why ?
> Problem with the 2-3 shift valve or the "shuttle valve". Or anything else
?
>
> Oil level is OK. Transmission has 4000 miles since overhaul. No slippage
> , no problem on 1-2 upshift.
>
> I have also a "forced kick down" problem (no KD ..) but i'll explain it
> on a next message
>
> --
>
> Philippe COURANT (Pau, France)- Webmaster des sites ACCF et C-I-F
> Imperial 1957 Crown convertible
> Buick 1996 Roadmaster wagon
>
> - American Car Club de France (ACCF) : http://www.accf.com
>
> - Chrysler Imperial France (C-I-F) : http://www.ifrance.com/c-i-f
>
> - Cadillac " Standard of Excellence " : http://www.ifrance.com/accf-cad
>
> - SportsCars : http://www.ifrance.com/accf-sprtcar
>
>
>
>
>
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