E40D Problem - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 05-19-2003, 03:50 AM
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E40D Problem

Okay here we go. I have a 93 Bronco, 351W,E40D,355 gears.
The problem is when going throught the gears as soon as it
hits 3rd gear it goes into 4th gear real quick. And when I'm pulling a hill it won't drop into 3rd and stay. It goes
right back into 4th or when it lugs down far enough it goes
into 2nd. Is there some way to reprogram this problem or
does this sound like a mechanical problem? I would
appreciate your words of wisdom on this matter. I did the search thing but couldn't find anything like this. I already
changed the fluid and filter, changed the TP,and through Holy water on it. HA, just kidding on the water stuff. thanks in advance for any help.
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post #2 of (permalink) Old 05-19-2003, 07:32 AM
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Re: E40D Problem

You could have a couple of problems....The one that comes to mind is you have put bigger tires on the beast and have not reset your PSOM. Another is the "brains" is reading the speed sensor wrong. The Valve body could have some trash in it, third gear is going out....

take it to a tranny shop and let them pur the computer on it. they can bypass your computer and make it shift when they want to thus eliminating some stuff.

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post #3 of (permalink) Old 05-22-2003, 03:36 AM
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Re: E40D Problem

Thanks for the reply Havack. Yes, It does have some 32s
on it but the speedo is only 2mph off at 70 mph. I'm
going to try a shop if I can find a decent one around her
and when I get some extra green. I'll be going to 35s
here some day so I'll have to live with it till then. I
will let you know what happens. thanks again.
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