l

I have a 94 thunderbird that shifts erratically. if I am in town and only
going 5 mph it will shift through all the gears right into overdrive. i
don't think it is the throttle sensor because i can make it shift with the
gas pedal. if i am on a hill i have to work the gas pedal to make it
downshift or it will go right into overdrive and buck.can anyone help??

 

Backyard Mechanic

l <none> wrote:

> I have a 94 thunderbird that shifts erratically. if I am in town and
> only going 5 mph it will shift through all the gears right into
> overdrive. i don't think it is the throttle sensor because i can make
> it shift with the gas pedal. if i am on a hill i have to work the gas
> pedal to make it downshift or it will go right into overdrive and
> buck.can anyone help??
>

Engine?

Does your Cruise Control work?

Take it to Autozone, get codes read out, if it's a 4.6L

--
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!

lugnut

On Fri, 3 Feb 2006 20:25:52 -0500, l <none> wrote:

>I have a 94 thunderbird that shifts erratically. if I am in town and only
>going 5 mph it will shift through all the gears right into overdrive. i
>don't think it is the throttle sensor because i can make it shift with the
>gas pedal. if i am on a hill i have to work the gas pedal to make it
>downshift or it will go right into overdrive and buck.can anyone help??


As Backyard said, the first thing you need is to get the ECM
scanned for any fault codes. Any of fault code related to
vehicle speed or load may cause this. The nuetral switch on
the trans can cause this erratic operation w/o setting a
code in a lot of vehicles. But, don,t touch anything until
you get the ECM scanned and have some idea what you are
working with.

Lugnut

Puddin' Man

I belong to 94 TB LX V8. After considerable search, the
connection for my ECM was found under the dash on
shotgun side. Might wanna check there first, maybe save
a little time.

Puddin'

On Fri, 3 Feb 2006 20:25:52 -0500, l <none> wrote:

>I have a 94 thunderbird that shifts erratically. if I am in town and only
>going 5 mph it will shift through all the gears right into overdrive. i
>don't think it is the throttle sensor because i can make it shift with the
>gas pedal. if i am on a hill i have to work the gas pedal to make it
>downshift or it will go right into overdrive and buck.can anyone help??