4R100 HELP!!!
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Mountain Pass
Joined: Dec 2019
Posts: 204
Likes: 25
From: IN
4R100 HELP!!!
Driving down the interstate at 65 mph. Lost the transmission. I have reverse, but nothing else. When you put it in gear (1st, 2nd, or Drive) it won’t move. Just neutral. Half heartedly tries to move at about 2K on the tack. Defiantly slipping. Need to know what the most likely culprit is…. Transmission? Converter? Transfer case?
not leaking any fluid… not locked up, driveshafts are good. Just lost it out of nowhere. There were no clicks, no clunks, no smoke, no warning.
not leaking any fluid… not locked up, driveshafts are good. Just lost it out of nowhere. There were no clicks, no clunks, no smoke, no warning.
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Mountain Pass
Joined: Dec 2019
Posts: 204
Likes: 25
From: IN
Im pretty sure it’s transmission. Maybe it’s wishful thinking but… wondering if it could possibly be a valve body, or solenoid pack, filter issue possibly. Just playing devils advocate cuz I’m stuck on the side of the road, waiting on the tow rig to show up.
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Mountain Pass
Joined: Dec 2019
Posts: 204
Likes: 25
From: IN
no codes on my CTS3 and no check engine light…
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Mountain Pass
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@Mark Kovalsky is the one who knows his ****!
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Joined: Jul 2017
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From: WV
Originally Posted by BCMO
2001... Diode issue maybe?
When mine went out suddenly it was the TC but…
So it does have reverse? That should rule out TC. TC turns Input Shaft. Everything goes through there.
Grabbed this from somewhere years ago.
Wish I had a better understanding of how the mechanical side connected (as in what part/spline has physical connection to another for power transfer).
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,698
Likes: 2,620
From: SE Florida
It isn't the converter, the transfer case, the solenoids, or a diode. None of them can allow reverse to work but not forward. The trans has had an internal failure and needs to come out and be rebuilt or replaced.
Running codes is fun, but in this case, it would be a waste of time. Something mechanical broke inside the transmission.
Running codes is fun, but in this case, it would be a waste of time. Something mechanical broke inside the transmission.
