Help!! no power???

Mudn_1

Sweet Home
Joined
Apr 24, 2007
Messages
5,290
My buddies 01' has lost power, truck still runs smooth but there is just no power almost like it is in limp mode!

we have replaced fuel filter, lift pump, VP-44 and TPS!

the truck was throwing lift pump codes and an Idle validation switch code, we erased them after install and they didn't come back

any ideas??:bang:bang
 
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