p0742 range shift inhibited

[02bigstrokin]

hey mike i am starting to get a p0742 code every once in a while now. ever since the new motor its done it some. wont go in reverse. have to clear code. it happened to me tonight, i got on and it downshifted out of o/d and then when i got home i couldnt back in my driveway. i think the converter is fine as i put it in 4hi and at 2200 its pulling threw the brakes hard.(1057) what do you think? thanks

 

[Mike L.]

hey mike i am starting to get a p0742 code every once in a while now. ever since the new motor its done it some. wont go in reverse. have to clear code. it happened to me tonight, i got on and it downshifted out of o/d and then when i got home i couldnt back in my driveway. i think the converter is fine as i put it in 4hi and at 2200 its pulling threw the brakes hard.(1057) what do you think? thanks

Give me a little history on the life of your Alli.

 

[02bigstrokin]

mike, this is the one me and travis built. it has travis's 1057 converter. i probably only have maybe 12-15k on it. for a while it was just stock charger big tuning, then since about march its had the mpi twins on it and never missed a beat. now since we built the motor and put the bigger small charger on it, its starting to act up.

 

[Mike L.]

Sounds like you have a shorted out F trim solenoid. Easy fix with pan drop. Just replace it.