1994 f-250 Stalls when stopped unless in first gear

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welding@comcast.net - 09 Mar 2006 05:50 GMT

My truck is doing something wierd I stop at a light and if it is in
drive or second gear it will lurch like trying to go forward then the
engine dies if I restart it and put it in reverse drive or second it
dies but if I put it in first gear it is ok this is a E40D automatic
tranny is it tranny problem,switch problem computor problem anyone with
simular problem???????

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CJB - 09 Mar 2006 14:20 GMT

I'm a real novice, but, having had a couple of E4OD's and studying about
them, I'd wonder if you don't have a problem with the MLPS, the Manual Lever
Position Switch. It's the piece that replaced what we used to call the
backup light switch. The difference is, it tells the computer exactly which
gear you've selected. They were pretty common failures, and the replacement
piece is a redesign to fix the problem.

Just a guess,

CJB

> My truck is doing something wierd I stop at a light and if it is in
> drive or second gear it will lurch like trying to go forward then the
> engine dies if I restart it and put it in reverse drive or second it
> dies but if I put it in first gear it is ok this is a E40D automatic
> tranny is it tranny problem,switch problem computor problem anyone with
> simular problem???????

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Whitelightning - 09 Mar 2006 18:20 GMT

> I'm a real novice, but, having had a couple of E4OD's and studying about
> them, I'd wonder if you don't have a problem with the MLPS, the Manual Lever
[quoted text clipped - 4 lines]
>
> Just a guess,

could also be a problem with the torque converter look-up system

Whitelightning

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pkurtz2 - 15 Mar 2006 17:32 GMT

>> I'm a real novice, but, having had a couple of E4OD's and studying about
>> them, I'd wonder if you don't have a problem with the MLPS, the Manual
[quoted text clipped - 11 lines]
>
> Whitelightning

I am with Whitelightning on this one. It sounds like the lockup clutch on
the torque converter is not unlocking and therefore trying to hold the
transmission in 3rd or 4th gear. You might think its getting back to 2nd
gear, but it probably isnt, and if the lock-up i still engaged it puts the
trans into direct drive, meaning that the engine is directly coupled to the
rear wheels. You need to take this to a tranny shop and have them check it
out.

Pk

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