NEED HELP! E40D shifting problems, any one have a clue??? - Ford Powerstroke Diesel Forum
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Old 02-09-2011, 01:22 PM
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NEED HELP! E40D shifting problems, any one have a clue???

Still working on the same truck, 1993 Ford F-350 XLT, single wheel, crew cab, 7.3L IDI, E40D tranny and 190-k miles.
Truck has new IP and TPS has been set with scanner to specs. After messing with this thing for 3 weeks now, we have figured out nothing really other than when the truck is cold and the high idle is on the tranny shifts PERFECT, after the high idle kicks off and the truck is warmed up good it shift so hard in every gear is will snap you neck (well close, but does shift hard even into OD).....

Have dropped the pan to see if there was a shift kit installed and just found stock springs, replace the silenoid pack just to be on the safe side and still no luck. (inside the tranny looks new, nothing burt and NO bad smell)
Truck is showing ZERO CODES! Now I am being told to replace the computer. The tranny shop that has it now said they are going to check something with line pressure and go from there.

Has anyone every had this problem or know anyone I could talk to about it? I don't mind spending a little money on this truck but I am tired of spend money and getting nothing done! Spent about $400 so far and have the same problem, hell a few hundred more they could have re-built this thing.
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Old 02-13-2011, 04:07 AM
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I got the same issue. I didn't go through all the trouble you did but it did notice that where you set your throttle position sensor matters as to how you shift. Now i know there are guys on here that swear its 1.0 on the tps but when i set that i get my worst shifts. I have mine set at 7.2 now its still hard but not as bad. Im sure it all has to do with what you have your idle set at. Someone please correct me if im wrong. the 1.0 v setting only works if you have the factory setting on your idle anything higher or lower will make the tps read higher or lower.
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Old 02-13-2011, 07:27 PM
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Yeah I even made some adjustments on the TPS and got alittle softer shift out of it but did notice it was acting up when cold then, so we pulled the scanner back out and reset everthing back to specs. even the idle set to specs. Make me wish I had a spare truck with a 5 speed and just convert it to a hand grinder..... Damn shame this ol' truck has alot of power for a non-turbo IDI truck.
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Old 02-13-2011, 07:34 PM
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those e4od's are a lil more than a few hundred to rebuild....
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Old 02-14-2011, 10:02 AM
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REALLY!!!!!!!!!!!!!!!!

The post was a remark about having to spend $200 here and $200 there just changing out parts and not fixing the problem. Meaning WHY should I keep dropping money on something that is not a garranted fix.

The tranny shop is telling me around a $1000.00 to rebuild it. But who's the tranny computer is not the problem? No clue how to check it and can't find another one around to use to check mine first.
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Old 02-19-2011, 11:00 AM
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Similar issue with my 02 f350 psd. spent 2700 on maybes so far. today i yanked the pcm out of the cab and placed it in the cooler engine compartment it's 20* outside so I thought it would be a good test. seems the pcm was affected by the temp of the cab when all the techs thought it was the fluid being warm that caused my issues.
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