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my 2004 fx4 has trans code b on the dor tag but the transmission in it is (4R75W) Four Wheel Drive (ID 3L3P-LA so can i use a 4r75 from a expedition to replace it
Now I'm not too sure - there may be electronic differences between a 4R75E and 4R75W. You have a 4R75E in your truck. Ask a transmission shop.
That is what I thought as well b tag on the door but the transmission tag ID 3L3P-LA which is a 4r75w according to ford dealer. So that has been a nightmare figuring out as well. it wont **** above 2cnd neutrals out put new servo and valve body in no help. So time to replace
Trans shop says a lot of the new style 04 had w sneaked in them wasn't until 05 they weeded them all to e. I think may be some one tried to change it before.
It was like this when I got it but price was right My other truck is a totally different beast its a 95 f 350 4x4 power stroke and its been through it but keeps on a ticking
I honestly don't know. From what I read, neutraling out when trying to shift to 3rd is most often a failed direct clutch or intermediate/stub shaft. It could be a solenoid, but if that's the case you should have a flashing OD-OFF light and DTC's.. From that link:
In 2003 Ford revised the 4R70W transmission with a stronger ring gear that had 24 lugs, as opposed to 6, for the output shaft sensor (OSS) to read off of, a new torque converter, a revised front pump assembly, and a vehicle speed sensor (VSS) that compliments the OSS to improve shift quality and efficiency. These improvements allowed the 4R75W to handle more power while being more efficient and economical. While not used on all 2003 model year vehicles, the 4R75W/E transmissions eventually replaced the 4R70W/E.
Newer transmissions that are referred to as 4R70E or 4R75E have modifications that compliment Fords switching to throttle by wire. The PCM was given a more powerful microprocessor and Ford added a turbine speed sensor to the transmission. This allows the PCM to know the speed of the input shaft after the torque converter which is used in combination with crankshaft speed to detect the amount of slipping going on in the torque converter. This information provides PCM with the basis for fully electronic shift scheduling which limits "hunting" and fine-tunes shift speed and feel. It lets the PCM know what the torque will be in the next gear so it can choose the shift points based on the vehicle's projected performance in the next gear. Coupled with the electronic throttle strategy, the transmission computes the output torque required to maintain the vehicle speed, and chooses the correct gear and converter state accordingly.
I think that the best thing to do, is replace your transmission with the same transmission. If you get another transmission, even though they are all technically 4RXX, you will most likely have issues. You would spend more time and money trying to make it work. And the end result would just not be as good as starting off with the correct transmission. That's assuming that you actually somehow got it to work.
We rebuild transmissions... my boss taught me E150/E250/F150 4.6/5.4L: 04-08 (and early production 09) = 4R70W 09-14 4R70E. Crown Vic's also included but have a longer shaft & tail. Of course there are other vehicles that fit... but these sell like hot cakes, so I've learned them well. Most people call us asking for an E, but they actually need a W bc there is a lot of miss information published. I have these pics to send customers to help them decipher E from W
10-13-2019 | 10:44 PM
