4r100 normal operation? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 6 (permalink) Old 11-02-2015, 07:18 PM Thread Starter
Justaworktruck
 
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4r100 normal operation?

Just installed a rebuilt 4r100 w shift kit into 97 OBS.
I am using Compushift tranny controller in the 4R100 mode.
I did not change anything internal.
What is typical shift sequence?
I have the following, 1-2-3-TCC on- 4 TCC on.
1,I cannot feel TTC lock up (screen verifies it coming on). Then it stays on through out 3-4 shift. (I would think it goes off then shifts?)
2, When in 4th (OD)(TCC locked) I push down on pedal rpms go from 2100 to 2500 with a gradual increase to speed. I romp on it and it goes but not relative to rpm. Is this normal? Worried about towing this way.

Pullinweight

1997 f250,03 cummins, HE351 turbo,van Aiken tuner, cobalt gauges, fass fuel,NADP 4r100, compushift tranny controller, air ride suspension, 05 axle swap, hydra boost upgrade
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post #2 of 6 (permalink) Old 11-03-2015, 01:27 PM Thread Starter
Justaworktruck
 
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Re: 4r100 normal operation?

Anyone know if they can feel your tcc lock up in 3-4 shifts??


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Pullinweight

1997 f250,03 cummins, HE351 turbo,van Aiken tuner, cobalt gauges, fass fuel,NADP 4r100, compushift tranny controller, air ride suspension, 05 axle swap, hydra boost upgrade
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post #3 of 6 (permalink) Old 11-03-2015, 06:45 PM Thread Starter
Justaworktruck
 
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Re: 4r100 normal operation?

After talking with Compushift I changed the TCC type from PWM to non PWM. I now feel the TCC lock up more than shift points. It also drops it by 300rpm. Works like it should just a little harsh now.
Turns out 2001 4r100 may or may not have PWM setup.

Pullinweight

1997 f250,03 cummins, HE351 turbo,van Aiken tuner, cobalt gauges, fass fuel,NADP 4r100, compushift tranny controller, air ride suspension, 05 axle swap, hydra boost upgrade
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post #4 of 6 (permalink) Old 11-03-2015, 07:25 PM
Former Ford Trans Engr.
 
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Re: 4r100 normal operation?

All 2001 4R100 had a PWM lockup from the factory. That doesn't mean someone couldn't have changed the solenoid body to a non-PWM one.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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post #5 of 6 (permalink) Old 11-05-2015, 04:27 AM Thread Starter
Justaworktruck
 
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Re: 4r100 normal operation?

Ok, so the rebuilder installed a non pwm. Why would they do this, as opposed to factory setup?


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Pullinweight

1997 f250,03 cummins, HE351 turbo,van Aiken tuner, cobalt gauges, fass fuel,NADP 4r100, compushift tranny controller, air ride suspension, 05 axle swap, hydra boost upgrade
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post #6 of 6 (permalink) Old 11-06-2015, 02:33 AM
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Re: 4r100 normal operation?

You'd have to ask them. I don't know.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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