[AT] OT - Pickup Transmission Question

[tomehrkam at houston.rr.com]

I agree any body but AAMCO, Brake Check, Just Brakes etc. They are all
crooks.

You probably have a great independent tyranny shop in your area. The trick
is finding them. Ask around. If you have a mechanic you trust then ask him
which shop he would choose. That is how I found mine.

If you have a little patience and a service manual you can probably fix it
your self. The computer helps a lot diagnosing these problems.

I do not remember for sure. I thought my 1991 had a mechanical speedometer.
It did have a Vehicle speed sensor for the computer. I do not remember but
maybe they ran off the speedometer cable. I seem to remember a cable coming
from the tail shaft of the Tanny and behind the dash it goes into the VSS.
Another cable is attached to the VSS and goes to the speedometer. If that
is the case maybe the cable or gear is bad. Look under the truck and see if
there is a old time speedometer cable.

PS: I have never heard a good AMCO story. Only horror stories.

Original Message:
-----------------
From: charlie hill chill8 at cox.net
Date: Wed, 22 Dec 2004 08:13:44 -0500
To: at at lists.antique-tractor.com
Subject: Re: [AT] OT - Pickup Transmission Question


Check the grounds and get it away from AAMCO as soon as possible and 
hopefully before they go into it.  Around here they charge you a small base 
charge to tear into it.  Then tell you  it is going to need a rebuild and 
won't put it back together without a big charge.  Your's may be different.

The speedometer is most likely electronic on a 1990.  Therefore if it is
not 
working consistently it stands to reason that it is a ground.  If you can 
get it back from AAMCO before it cost you any money try putting a jumper 
cable or similar ground from the transmission case to a good chassis
ground. 
(make sure the connections are good) and see if the problem goes away.

Charlie
----- Original Message ----- 
From: "Rob Gray" <Robgray at epix.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Tuesday, December 21, 2004 9:33 AM
Subject: [AT] OT - Pickup Transmission Question


>I have a '90 F150 automatic 4X4 which started to have shifting problems
the 
>same day as the speedometer started to "bounce" around from zero to the 
>actual driving speed. The transmission continued to shift worse and worse 
>as the speedometer got worse and worse until the speedometer stopped 
>working at all and I could barely drive the thing due to extremely 
>off-timing gear shifting. This was supposedly one of the first years for 
>Ford's electronic transmissions so I'm guessing that these trucks use the 
>speedometer to assist the auto tranny in "knowing" when to shift?
>
> I left it at AAMCO and they said that they have to open up the transfer 
> case and take a look. Has anyone experienced this sort of problem before 
> that could give me any insights as to how big a job it was to get 
> fixed....? I just had the torgue converter on the transmission replaced 6 
> months ago and with a truck this age I'm somewhat leery of digging a hole 
> too deep expense-wise... Maybe I should park it out in the field and
start 
> one of those old vehicle "collections" you see on some places here and 
> there.... ;)
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
> 


_______________________________________________
AT mailing list
http://www.antique-tractor.com/mailman/listinfo/at

--------------------------------------------------------------------
mail2web - Check your email from the web at
http://mail2web.com/ .