I bought a 1999 Dodge Ram 1500, came to find out later that someone put 1997 Dodge parts on. Including a transmision, bought a use 2001 tranny and put it in. Now my tranny wont go into overdrive and my trans temp lights are on. Need help!

 

did you change the comp? you might have to bring it to a dealership or tranny shop and get it reformated, maybe could be worng.

 

not sure about the computer if it is for 97 or 99.

 

does it matter that the plug number dont match?

 

What was wrong with the trans you took out?

I think some of the connector pinouts changed in 98, and again for 2000...... so, it might just be a simple matter of wires not being in the right place.

If the PCM thinks the trans is overheating, it will disable fourth gear.

 

the tranny that was in it was kicking out of overdrive and the trans temp light would come on a little later. replaced all sensor and seloids and it still did it. now it wont go into overdrive at all.

 

Still have the check valve in the trans line going to the lower fitting on the radiator? Might be the cause of your overheating issue on the original trans.

 

I don't think the petson who had it before me had the computer formated to the tranny.

 

Did you replace them with the same ones? Like Hey You stated before, 2nd gen rams have 3 different types of solenoids.

 

the new tranny I put in had new sensors and seloids, I did replace the speed sensor and the govenor sensor. I couldnt replace the temp. sensor or the gov pressure sensor they were different.