[AT] OT - Pickup Transmission Question

[dglass]

I never had that problem, but I did experience problems with AAMCO.  
That may be your biggest problem.

Rob Gray wrote:

> 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.... ;)
>
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