Re: 5R55W-S 5 speed automaticJanuary 9 2006 at 2:13 AM
|Mark Piechowski (no login)|
from IP address 18.104.22.168
Response to 5R55W-S 5 speed automatic
Working at the Ford dealership I have seen quite a few of these trans. The most common problems with them are the solenoid packs failing. The information I had received from Ford's tech hotline was that there was an anticorrosive additive to bulk Mercon 5 fluid that would cause plastic bushings within the solenoid pack to swell restricting solening action. Normally, the symptoms were delayed harsh reverse engaugement and harsh 2-3. Sometimes a slipping shift was present. Earlier united suffered from some gear whine issues. Ford suggest replacement of the forward planet, ring and sun. I haven't seen much breakage, other than some stripped fwd clutch teeth. Also higher mileage units suffer from the OD and INT servo pin case bores having excessive eggshape wear. I have seen repair kits with reamers and sleeves availible online. I would say I prefer the 5R55N over the S or W. The N has an additional clutch pack that comes on in place of the intermediate band and houses a oneway clutch to be overrun when shifting into 4th (direct). Ford has had several revisions on programming for the S and W to minimize overlap issues. The N is found in up to 02 V-8 Lincoln LS and maybe T-birds, not sure.
Naming four similar transmissions the 5R55N, 5R55W, 5R55S and 5R55E kinda ressembles a compass which makes it quite appearant that Ford did not know which way to go with these transmissions.
p.s. Hey Jay, when and why did you move to Texas?