need 4l60e help. no 1st gear
#1
need 4l60e help. no 1st gear
i scaned it and have these codes
po758 2-3 shift solenoid circuit
po753 1-2 shift solenoid circuit
p1860 tcc pwm solenoid circuit
po740 tcc enable solenoid circuit
This is running on jack stands. I cleared the codes and ran it. It has no first gear at all and shifts very hard. Initially has fourth gear, but once it sets the codes it wont go back into fourth. Shifts fine in both auto and manual modes, but wont go into first manually either.
This is a new car to me, so i cant say if it ran good before or not. The only thig I did to the transmission was to add a cooler. I did add fluid and checkthe level. Could low fluid cause this or do the codes point in another direction.
Thanks
Ryan
po758 2-3 shift solenoid circuit
po753 1-2 shift solenoid circuit
p1860 tcc pwm solenoid circuit
po740 tcc enable solenoid circuit
This is running on jack stands. I cleared the codes and ran it. It has no first gear at all and shifts very hard. Initially has fourth gear, but once it sets the codes it wont go back into fourth. Shifts fine in both auto and manual modes, but wont go into first manually either.
This is a new car to me, so i cant say if it ran good before or not. The only thig I did to the transmission was to add a cooler. I did add fluid and checkthe level. Could low fluid cause this or do the codes point in another direction.
Thanks
Ryan
#7
TECH Addict
It is normal for the wheels to spin when trans is in neutral and wheels are off the ground. You are going to need some kind of scanner that will let you read which shift solenoids are on/off or if they are even coming on in each gear to be able to diagnose this problem.