Trans Experts???
#1
Trans Experts???
1999 f150 4x4 4.6 4r70 with body swap from 2003 f150 4x2 5.4 4r100. Everything works except trans is stuck in limp mode (won't shift out of 2nd) and speedo doesnt work. Been diagnosing wiring for what seems like forever. Most recent thing I've been doing is checking voltage signals for all the speed sensors and all seem to be good. Everything is fine mechanically and even had transmission solenoids replaced (waste of money). Throwing codes for shift solenoid a and shift solenoid b. If anyone knows anything that I don't or anything else to look into it would be greatly appreciated.
#3
Had the 1999 pcm in at first, took it to ford dealer for flashing, they said pcm was no good, so put the other one in and all was fine until I had it at another mechanic to get looked at, they said that this PCM was no good, they talked me into getting another different pcm put in so now it has one that they got from a wrecker.
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#9
Because so much was done and there are SO many variables that we don't know how were addressed, this is going to be about impossible to diagnose online.
I would start by getting the wiring diagrams with computer pinouts and check to see if there is continuity from the PCM to the transmission on all the wires to the individual components. With the computer disconnected you can check for the proper resistances. If you are careful you can even apply voltage to the solenoids through the computer connector and harness to see if they work.
D
I would start by getting the wiring diagrams with computer pinouts and check to see if there is continuity from the PCM to the transmission on all the wires to the individual components. With the computer disconnected you can check for the proper resistances. If you are careful you can even apply voltage to the solenoids through the computer connector and harness to see if they work.
D
#10
#11
Because so much was done and there are SO many variables that we don't know how were addressed, this is going to be about impossible to diagnose online.
I would start by getting the wiring diagrams with computer pinouts and check to see if there is continuity from the PCM to the transmission on all the wires to the individual components. With the computer disconnected you can check for the proper resistances. If you are careful you can even apply voltage to the solenoids through the computer connector and harness to see if they work.
D
I would start by getting the wiring diagrams with computer pinouts and check to see if there is continuity from the PCM to the transmission on all the wires to the individual components. With the computer disconnected you can check for the proper resistances. If you are careful you can even apply voltage to the solenoids through the computer connector and harness to see if they work.
D
How would I apply voltage to test the solenoids? I am assuming that they are fine because the last shop I had it at replaced the solenoids.