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power loss

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Old March 1st, 2010, 8:24 PM
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Question power loss

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
Old March 1st, 2010, 9:25 PM
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Maybe your torque converter going out if not the tranny??
Old March 2nd, 2010, 1:43 PM
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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.
Old March 2nd, 2010, 2:06 PM
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I was thinking the samething tranny / torque converter, there is no service engine soon light.

Thanks
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