Transmission question 2006 e350
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Transmission question 2006 e350
i have 2006 e350 v10 203,000 miles. Last week or so transmission giving trouble when van is warm on restarts. Start van after sits couple hours and it’s fine drive for miles and no problems. Stop at gas station and restart and it shifts a bit rough and no overdrive. Any ideas?
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
Cargo Master
Joined: Apr 2013
Posts: 3,087
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From: Central Florida
Don’t forget Mark a year ago when mine had a similar issue. I replaced the TFT and it was immediately solved.
My symptoms were:
-wouldn't shift beyond 3rd even on the highway
-would slam into reverse or drive unbelievably hard.
Very easy driveway fix. Drain fluid and pull pan and then it’s about 10seconds to fix it.
Make sure tyou use the correct fluid to refill. Mine requires Mercon SP and it took about 10quarts.
My symptoms were:
-wouldn't shift beyond 3rd even on the highway
-would slam into reverse or drive unbelievably hard.
Very easy driveway fix. Drain fluid and pull pan and then it’s about 10seconds to fix it.
Make sure tyou use the correct fluid to refill. Mine requires Mercon SP and it took about 10quarts.
Trailering
Joined: Aug 2015
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Thanks @merrilllangs for the timely thread. My 06 E350 with a 5R110 behind a 6.0 Powerstroke developed issues last week, right at the end of a family vacation. (Dodged a bullet there.)
Started to feel surging on the freeway as if it were downshifting incorrectly or lockup on the torque converter was uncoordinated. OVERDRIVE light on shifter was flashing. Got the van home and when shifted in to reverse to back onto my driveway, it slammed in and stalled the motor. Sounds closer to symptoms described by @Im50fast. (TFT referenced was the temp sensor for the trans?)
Pulled codes and came up with P0742 and P0743. These both came back as torque converter issues. Would this warrant replacement of solenoids? Or is this is service and time resolved issue? Thanks
Started to feel surging on the freeway as if it were downshifting incorrectly or lockup on the torque converter was uncoordinated. OVERDRIVE light on shifter was flashing. Got the van home and when shifted in to reverse to back onto my driveway, it slammed in and stalled the motor. Sounds closer to symptoms described by @Im50fast. (TFT referenced was the temp sensor for the trans?)
Pulled codes and came up with P0742 and P0743. These both came back as torque converter issues. Would this warrant replacement of solenoids? Or is this is service and time resolved issue? Thanks
Cargo Master
Joined: Apr 2013
Posts: 3,087
Likes: 24
From: Central Florida
I’m no expert here.
I went to local ford stealer and they said to replace the TFT and its wiring harness. Something like $1200 or so. they said maybe the TFT alone will fix it, but they wouldn’t take the chance of skipping the harness.
I did it at home in my driveway and it’s been fixed ever since.
I went to local ford stealer and they said to replace the TFT and its wiring harness. Something like $1200 or so. they said maybe the TFT alone will fix it, but they wouldn’t take the chance of skipping the harness.
I did it at home in my driveway and it’s been fixed ever since.
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,717
Likes: 2,642
From: SE Florida
Those indicate an electrical short to ground in the torque converter clutch solenoid circuit. It might be the solenoid, but it usually is in the wiring to the solenoid. Some electrical diagnosis is called for before replacing any parts.
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Trailering
Joined: Aug 2015
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Thanks for the quick response @Im50fast and @Mark Kovalsky.
Almost wishing that there was a solenoid replacement. I know how to turn a wrench, electrical diagnostics not my strongest suit. Mark, from your experience, what are the chances they are the circuits that sit inside the pan? They seem very robust to me. My big fear is that I will have to track down this short somewhere in the confines of the Econoline engine compartment. Really tight quarters in there.
Almost wishing that there was a solenoid replacement. I know how to turn a wrench, electrical diagnostics not my strongest suit. Mark, from your experience, what are the chances they are the circuits that sit inside the pan? They seem very robust to me. My big fear is that I will have to track down this short somewhere in the confines of the Econoline engine compartment. Really tight quarters in there.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,717
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From: SE Florida
I believe that would be a 4R70W.
Trailering
Joined: Aug 2015
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[QUOTE=Mark Kovalsky;18162805]It's usually the wiring outside the transmission. It may not be the most elegant solution, but you could just run a replacement wire instead of finding the bad spot.
I try not be hack about repairs, but i may have to resort to this. Thanks again.
I try not be hack about repairs, but i may have to resort to this. Thanks again.
Trailering
Joined: Aug 2015
Posts: 16
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Mark Kovalsky, follow up question. Finally got a chance to turn the van around on the driveway and my problem is no longer there. Shifted normally into reverse and drive, but did not get a chance to freeway it to cycle torque converter solenoid for lockup. Just about to pull rear harness and bench test. Question is would the P0742 and P0743 codes come up on startup with a self test or is this something that requires a road test?
