Greetings all

Maybe someone can help 2000 chevy express van 1500 it's a full size conversion van. When the vehicle is warmed up going up hills It loses power until i get on flat ground or of course down hill, I had the tranny checked changed the fluids at transmission shop AAmco everything turned out fine ran ok for a few weeks and right back to the same problem ,I'm really thinking it's the tranny any ideas out there .

thanks Rocket

 

Maybe your torque converter going out if not the tranny??

 

Does your Service Engine Soon light ever come on when going uphill? My 2001 Explorer conversion will do this from time to time, I notice a slight decrease in power as well. Once the top of the hill is reached, the SES light will go off within 5 minutes.

 

I was thinking the samething tranny / torque converter, there is no service engine soon light.

Thanks