well driving home on the freeway last night and out of nowhere i lost all power,truck wasnt running hot it just lost all power.now when i start it runs like its on 4 cyl and alot of smoke comes out.did i warp my heads or blow a head gasket. what could it be thanks

 

color of smoke? anything in your radiator that looks strange or oily? excess water in exhaust pipe?

 

how many miles on the truck? it sounds like your timing belt skipped. I am unsure wether these are interference motors but I wouldn't run it at all. good luck with it

 

Sounds like a popped head gasket. Dont guess you hear any noise?

With the way it sounded like you were having problems getting power out of your truck, you had a real bad tune.

Also it cant be a timing belt, you have a chain, and they break. If they break, you arent running

 

yea the smoke is white i havent checked to coolant for any oil but the dipstick looks normal color.im pretty shure its a head gasket. It seems like theres no compression but i have to wait till tuesday.could a bad tune cause this or the cams i had installed could not have been installed properly. what the heck do i do the trucks got 26k on it