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'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

Thread: R4100 trans Reply to Thread
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  Topic Review (Newest First)
02-16-2018 11:59 AM
stumpman not what I wanted to hear thanks mark will call transmission shop to set up appointment thanks again
02-16-2018 11:49 AM
Mark Kovalsky The next thing to check is the overdrive one way clutch. I'm 99% sure it's failed.

The way to check it is to take the trans out of the truck and tear it down. While it is all apart it's time to do a full rebuild. That's what it is going to take to fix this transmission. This CANNOT be a solenoid or anything electrical.
02-16-2018 10:58 AM
stumpman truck will not move in drive. ae shows transmission selector working in all gears when moving shift lever also shows od when shifter is in drive and od button on shows d when od is off . so if pcm is not calling for both solenoids to turn off in drive where and what to check for next thanks
02-16-2018 07:25 AM
stumpman only have low gear when gear shift is in 1st gear nothing in d
02-16-2018 07:07 AM
Mark Kovalsky It's telling you to drive the truck and see if the solenoids are commanded to change when the transmission should shift.
02-16-2018 06:24 AM
stumpman thanks mark /rt hooked ae up gear selector in d solenoids 1on 2off. gear selector in 2 solenoids 1on 2on gear selector in 1 solenoids 1 on 2off any idea what this is telling me thanks
02-15-2018 09:37 PM
RT AE will not turn the solenoids on or off, but it will report what they are being commanded to do. Not necessarily what they are doing, but what the PCM is calling for.

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02-15-2018 09:34 PM
Mark Kovalsky I've never used AE. I have no idea what it can and cannot do.
02-15-2018 09:07 PM
stumpman no doesn't change will ae turn solenoids on and off no idea on read command gear please school me on that thanke
02-15-2018 08:54 PM
Mark Kovalsky
Originally Posted by stumpman View Post
no drive or second gear reverse and low works fluid full not burnt no sigh of trans slipping ae shows #1 solenoid on 2/3 off 213000 miles thanks
Solenoid 1 on and solenoid 2 off is correct for first gear. Does this ever change? You need to turn on solenoid 2 and keep 1 on to get second gear. Solenoid 1 goes off and 2 stays on for third gear. Both are off for fourth gear.

Can you read the commanded gear with the AE?

And it's 4R100, not R4100.
02-15-2018 08:00 PM
stumpman no codes od lite not flashing but will turn on and off with switch thanks for reply
02-15-2018 07:53 PM
jleedog Mark will come along with some insight soon. Any codes? Was the O/D light flashing?
02-15-2018 05:49 PM
R4100 trans

no drive or second gear reverse and low works fluid full not burnt no sigh of trans slipping ae shows #1 solenoid on 2/3 off 213000 miles thanks

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