Just put new transmission in my s10 Zr2... Transmission slip code keeps coming up.. it shifts fine.. what is it

SOURCE: 1994 JEEP GRAND CHEROKEE-TRANSMISSION "SLIPS" ON TAKE OFF.

First of all make sure you are checking the fluid right. Some people do not know that in order to check transmission fluid the engine needs to be running and the temperature needs to be sort of warm althought you should be able to get a good Idea just by the engine running. In this instance you might have a governer valve that isn't properly working to shift the engine when hydraulic pressure reaches a certain PSI. I would suggest having it flushed and put in new fluid and filter. If this doesn't work the problem is more serious and might need some professional assistance.

SOURCE: slight miss in engine, hard shift from 1st to 2nd long 2nd gear

Check both O2 sensor(s) and catalytic coverter.. P0420 means catalyst below threshold. Also check the sensor at the transmission and solenoid.

SOURCE: 1992 Mitsubishi Eclipse transmission slips in overdrive

well the low cost way to go first would be to try and change the trans fluids. If the problems still remains the it may be an internal problem

SOURCE: 1997 Dodge Intrepid transmission slipping when warm

I was told to change my Transmission Control Module,located on the transmission . You can get it new for under $200 but, I was advised to get it from a junk yard it's alot cheaper and its easier. I hope this helps

SOURCE: 2003 Chevy Impala transmission

my 03 impala only jerks hard when the engine is cold or slightly cold. when its warm its fine. i never had it looked at before.