Gonzo98

iTrader: (7)

I just switched back to a 4l60e from a TH350. When I had the 350 I had my tuner take all the trans stuff from the tune. I just got the 4L60e in and wanted to see if it engaged all the gear. The car has reverse, and moves when its in drive third and second gears. When I put the car in first it kinda lurches and dosent want to move. If you bring the rev's up it will move slowly. I checked the fluid level and it seems fine. I was wondering if it the tune messing it up. Let me know what you think.

performabuilt

iTrader: (25)

Yes without the pcm proper tune in the pcm the trans will just be in limp mode and if the trans has a transgo it will bind up in manual low one when in that condition

Gonzo98

iTrader: (7)

Thanks man, thats what I thought was going on. BTW nice write up in Popular Hotrodding.

performabuilt

iTrader: (25)

Thanks and your welcome

jimmyblue

iTrader: (11)

Might also check the linkage, if you start in second
you get no first.