4R100 Issues
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4R100 Issues
I've got a 1999 7.3 powerstroke with a 4R100 automatic transmission and the other day while driving up a hill, I lost power and then could only drive in reverse after that. I researched it and found that teh feed bolts were likely loose. I pulled it apart, found that they were loose, put it all back together and suddenly it could drive again.
While driving it around the neighborhood it seemed to have less power than normal, and then when I went to turn around it wouldn't shift into reverse, and while in neutral or forwards it tried to drive forwards. I then shifted to park and heard a clicking noise, and then it would only drive when I put it in reverse (it was actually going backwards too). By the time I got back to my house I found that it would go forwards in Drive but took more power than I expected to pull off the curb so I stopped and out it away for the night. Does anyone have any suggestions as to what the problem could be?
While driving it around the neighborhood it seemed to have less power than normal, and then when I went to turn around it wouldn't shift into reverse, and while in neutral or forwards it tried to drive forwards. I then shifted to park and heard a clicking noise, and then it would only drive when I put it in reverse (it was actually going backwards too). By the time I got back to my house I found that it would go forwards in Drive but took more power than I expected to pull off the curb so I stopped and out it away for the night. Does anyone have any suggestions as to what the problem could be?
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From: WV
This was my first thought as well. Some of your symptoms resemble a low fluid level condition. But some of them do not... At least it’s a free check.
Fluid should be checked on level ground, in Park, warm, and with the engine idling.
Fluid should be checked on level ground, in Park, warm, and with the engine idling.
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Honestly I'm a little unsure on that. I was told it should take 18 quarts of fluid, but after about 14 it seemed to be overful--even after driving around it looked a little overful.
I'm sorry, I still am new with this and don't really know what is what--where is the manual valve and how would I know if the linkage is correct?
Did you possibly get the linkage out of place on the manual valve?
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Now you just need a listening device (scan tool or scan app) to hear what your truck is trying to tell you.
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Honestly I'm a little unsure on that. I was told it should take 18 quarts of fluid, but after about 14 it seemed to be overful--even after driving around it looked a little overful.
I'm sorry, I still am new with this and don't really know what is what--where is the manual valve and how would I know if the linkage is correct?
I'm sorry, I still am new with this and don't really know what is what--where is the manual valve and how would I know if the linkage is correct?
EDIT: It appears Y2KW57 and I were typing at the same time.
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Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
No, the DTR is not the manual valve. The DTR cannot cause this problem. The manual valve is inside the pan, in the valve body. It had to be disconnected from the shift linkage to get the valve body off to tighten the feed bolts. I expect that the manual valve is not correctly attached to the shift linkage.
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I just ran my scanner and got all kinds of codes
Code: P0713 - TFT Sensor Circuit High Voltage Input
Code: P0750 - Shift Solenoid #1 Electrical fault
Code: P0755 - Shift Solenoid #2 Electrical fault
Code: P0743 - TCC circuit indicated the solenoid as ON (low voltage) when requested OFF (high voltage)
Code: P1754 - CCS Electrical fault
Code: P1746 - EPC Solenoid Open Circuit
But now I'm stumped on what to start with. Would this signify a bad solenoid pack or the wiring to it? Or something entirely different?
Thanks!
Code: P0713 - TFT Sensor Circuit High Voltage Input
Code: P0750 - Shift Solenoid #1 Electrical fault
Code: P0755 - Shift Solenoid #2 Electrical fault
Code: P0743 - TCC circuit indicated the solenoid as ON (low voltage) when requested OFF (high voltage)
Code: P1754 - CCS Electrical fault
Code: P1746 - EPC Solenoid Open Circuit
But now I'm stumped on what to start with. Would this signify a bad solenoid pack or the wiring to it? Or something entirely different?
Thanks!
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
It is a total disconnect of the connector on the right side of the trans. Either every part of the solenoid body failed at the same time, or the connector is disconnected, or the wiring harness is damaged.
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I also just checked fluid levels and even after driving last night and then sitting for 8 hours, the fluid is still showing about two inches above the cold line. Is this a problem or will it be ok to run it like this?
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I just started the vehicle and all the codes cleared, but once again, it just starts to move forwards in drive and then wont move but reverse works great. Any suggestions?
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I was a little unsure if I put the checkballs in the exact spot (I looked at diagrams but still couldn't tell for certain) would this cause any of these problems?