Can you shift 4r70w without linkage? - TCCoA Forums
 
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post #1 of 10 (permalink) Old 04-20-2004, 11:56 PM Thread Starter
 
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Can you shift 4r70w without linkage?

I know that stock applications use a floor shifter that is linked to the mlps sensor, and that the eec uses this sensor to tell the eec to shift. But, can you just do away with the mlps sensor and floor shifter completely and shift electronically using some other control means?

Worded different, same question:
Does the shift lever still control hydraulics in the transmission or is it just for controlling the mlps sensor?

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post #2 of 10 (permalink) Old 04-21-2004, 12:02 AM
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Just for controlling the MLPS sensor

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post #3 of 10 (permalink) Old 04-21-2004, 12:24 AM
 
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Nope!, the cable is defintely there to take the car in and out of park also. With no cable, you'd never be able to put the car in park
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post #4 of 10 (permalink) Old 04-21-2004, 05:01 AM
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It's only a 94+ that has an MLPS I'm pretty sure. I noticed you have an 87.

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post #5 of 10 (permalink) Old 04-21-2004, 07:52 AM
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Quote:
Originally posted by kenshi
It's only a 94+ that has an MLPS I'm pretty sure. I noticed you have an 87.
He is planning a 351W/4R70W combo for his car.

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post #6 of 10 (permalink) Old 04-21-2004, 10:02 AM
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No matter what trans if you really wanted to get rid of the lever you could hook up a servo and pushbutton sytem to be real trick

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post #7 of 10 (permalink) Old 04-22-2004, 12:48 PM
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Yup, there is a manual valve in there also. The MLPS tells the EEC what forward gear position you're in, so it knows how/when to command a shift. It also has the neutral start and reverse light switches inside, but without the manual valve, you would have no gear engagement anyway.
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post #8 of 10 (permalink) Old 04-23-2004, 03:36 AM
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Quote:
Originally posted by hotbird
Yup, there is a manual valve in there also. The MLPS tells the EEC what forward gear position you're in, so it knows how/when to command a shift. It also has the neutral start and reverse light switches inside, but without the manual valve, you would have no gear engagement anyway.
Indeed. If you rigged up a servo, the shifter could easily be done away with. But you'd still have to have that mechanical movement of the manual shift valve.

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post #9 of 10 (permalink) Old 04-27-2004, 10:18 PM
 
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Simple answer, yes, the shift linkage still controls the hydraulics inside the trans mechanicaly. So much for "hi-tech"!!
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post #10 of 10 (permalink) Old 05-03-2004, 11:28 PM
 
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You'd still have the shifter or like everybody else said use a servo or air shift. But, you could just use a shifter for P-R-N-D and control the computer to shift the trans with buttons. you'd have to a Ford progammer to get that right though. But in all reallity it would be near impossible.

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