TCC Problems
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TCC Problems
Hey everyone, Hope you can help. I have a 2002 f250, 5.4l.
The overdrive light flashes and no overdrive operation.
We replace the torq, convertor but still have the same sumtoms
and have codes p0740 and p0743 which will not clear.
Any sugestions. We have the pan off, but not sure which is the right
solenoid or how to test.
Thanks again
Robert
The overdrive light flashes and no overdrive operation.
We replace the torq, convertor but still have the same sumtoms
and have codes p0740 and p0743 which will not clear.
Any sugestions. We have the pan off, but not sure which is the right
solenoid or how to test.
Thanks again
Robert
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Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
The torque converter clutch solenoid is the small black round solenoid bolted to the valvebody. There are 4 solenoids on the valvebody on a 4R70W. 2 of them are in a rectangular "pack" and are the shift solenoids, the pressure control solenoid (EPC) is held in place on the side of the valvebody next to the shift lever, and the last one is a small black solenoid held in place by a single bolt that is shared with the shift solenoid pack. That's the one you're looking for.
JL
JL
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
A4OD's were never installed in any of these trucks. It'll be a 4R70W or a 4R100,or possibly an E4OD.
JL
It is an F250 super duty, v8 triton. It belongs to a roofing Co, who works on their own
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
It's also going to have the PWM controlled TCC,and the solenoids are in a "pack" that's replaced as a unit. You might be able to find individual replacement solenoids,but you'll be better off replacing the entire "pack". They're around $150 from most suppliers.
JL
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Rob Cuenin
1973 - 1979 F-100 & Larger F-Series Trucks
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Mar 4, 2013 06:11 AM
