hey guys another 4l60e problem i just recently had it rebuilt and now after i installed it i have no first or overdrive i can manually shift it 2nd and 3rd and they work fine i also have reverse and its good too the wierd thing if i manually shift to first with it jacked up it will actually lock the wheels up as if its taking 2 gears anybody got any ideas as to wat this problem is

 

ShiftA solenoid possibly failed. Or a wiring problem from PCM to Transmission.. or PCM.

 

If the transmission is unplugged it defaults it into 2nd (in in manual pos.) and 3rd only. make sure the connection is on properly.

if its internal I would look at the low roller clutch assembley, it has to be goo in order for 1st gear to work.

Also and tranny codes? A good tranny shop usually has a scanner to will let you know if the computer is requesting 1st gear or not.

 

hey thanks for the input guys i already brought it back to the shop yes it has every tranny code on i looked at the main plug in and its loose so i suspect they'll need to put in a new tranny harness inside the transmission i hope they don't have any internall problems i'll let u guys no wat it is hopefully later this weel and thanks a bunch

 

does your speedo work? mine did the same and the speed sensor wasent connected correctly

 

With the loss of power to your transmission the symptoms you have seem to be normal. I'm sure that the plug not being connected is where the issue is. The binding you felt in manual low was because of the no power condition. Basically in limp mode the 3rd clutch is applied and I will assume that you have a transgo kit. With the gear command feature of this kit, the low clutch being applied at the same time as the 3-4 clutch creates this bind. Hopefully you did not damage the low clutch in the process. Vince

 

what was the result ? new to form and im having same issue after I rebuilt mt 3rd 4l60e. no 1st no overdrive no codes everything is new new !! harness solenoids everything but case was new

 

9 year old thread bump....don’t expect a response.

Do you have 12v on pin E?