transmission wont shift gears when in drive
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I been out of town and just got back an hour ago.
The transmission engages freely when the lever is moved from park through to 2nd. It does not go into 1st.
The transmission that is currently in the vehicle was recently installed. It replaced the original one from time of assembly and there is no change. I believe that its either an adjustment issue or a computer issue.
The transmission engages freely when the lever is moved from park through to 2nd. It does not go into 1st.
The transmission that is currently in the vehicle was recently installed. It replaced the original one from time of assembly and there is no change. I believe that its either an adjustment issue or a computer issue.
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Yes I believe so as originally the unit came with 5.4L engine and transmission. The engine was replaced with a 2001 4.6L Crown Vic engine and I only found out after purchasing it. That's what you get for $600 bucks. I took it as a project so my son can have a vehicle to use. Now I was told by a transmission guy that the PCM is unable to read the transmission hence no change of gears due to incompatibility. He suggested I replace the engine or the transmission. I replaced the transmission with a re manufactured one for the vin number and compatible with the 4.6L. The problem remained the same. The transmission wont shift into another gear when placed in drive and would only change when the lever is moved manually. So using a Launch OBD2 scanner no fault codes were found. No check engine light is on. The over drive light is NOT illuminated and the button is pressed all the way in and cannot come out.This leads me to think that the PCM is at fault.
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The only way the PCM would be incompatible is if the truck came with a 4R100 transmission, and you replaced it with a 4R70W (or vice versa). Almost all 2001's came with a 4R70W, but a few 5.4's did have a 4R100, some of the 7700 payload package trucks with 7 lug wheels. What is the TRANS code on the door jamb sticker? 4R70W is code "U", 4R100 is code "E". Either transmission is compatible with either a 4.6 or 5.4, but you have to have the correct PCM. A 5.4 PCM will work with a 4.6 and vice versa. A 4R100 PCM will NOT work with a 4R70W, and vice versa.
If the manual lever will not move down to 1, you have a linkage adjustment issue or an internal transmission problem.
If the overdrive button is stuck, that's also an issue that needs to be addressed.
If the manual lever will not move down to 1, you have a linkage adjustment issue or an internal transmission problem.
If the overdrive button is stuck, that's also an issue that needs to be addressed.