I've had an unbelievably hard shift into 2nd gear for quite sometime now in my 4R70W. I talked to the service department and they said it's the Transmission Range Sensor. Has anyone else replaced this part yet? Is it easy to do?
Thanks

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Nate
95 XLT 5.0/4r70w/3.31
SC SB 30X9.5's
Perfomance Cover Tonneau
Ventshades and Bugflector
Chrome Bedrails
nate95@f150guy.com

 

If the shift is late, and it revs high it may by the intermediate one-way clutch.
The other thing that causes this is the spring on the 1-2 accumulator breaks, lots of earlier 4R70Ws had this problem. The spring that controls the rate is broke and the thing shifts real hard. If you want a shift kit, that is one thing you can do to shift it harder.
FORGOT to answer the sensor question. If the trans range sensor is going bad you usually get all kinds of wierd shift patterns. If all you are having is a hard 1-2 shift then look at the stuff above. The accumulator spring can be replaced by dropping the pan. Go to www.tccoa.com and look for the tranny 101 article. Its got lots of good stuff.

Birdman

[This message has been edited by birdman (edited 06-11-2000).]

 

Did you ever find the source for the hard shift?

 

I had the 1-2 spring break. The shop said it fell out in three pieces when they dropped the valve body. New spring and it's running fine.

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1994 F150 XLT Supercab, 302 V8, MSD 5200, Flowmaster 40 series, K&N FIPK, Border Patrol Green