OK heres what going on. 2.5l v6 automatic. This just started happening, Transmission has only 20k on rebuild, So far I did a fluid flush, changed vehicle speed sensor, and idle air control valve. Its better but it will not shift or very hard when its cold out (below 35 F) once its warmed up, its perfect. Now after driving on the highway at 55-60mph rpms around 2250 for 15 minutes, the torque converter will disengage from lockup and rpms will go from 2250 to about 2700 at 55-60 mph. Try to stop and the car downshifts like a truck, not smooth at all. And try to stop and the car pushes you like your on the gas. Start to drive again and it wont shift, you have to let off the gas like your using a manual trans. Now stop again put it in neutral and rpms go about 3500. Shut the car off, put it in park, restart and you can drive away and the trans shifts like a dream until it decides to act up again. I think its electrical
Im out of ideas, im thinking of trying the transmission speed sensor and possibly the range sensor to see if thats bad. After that im lost. I cant afford a shop, I work part time but I did take it to one and there are no codes at all.
Any ideas, please help before I lose my trans or something.
Tuesday, January 17th, 2012 AT 9:38 PM