i need some help. when ever i get on the gas it sounds like im losing some sort of pressure some where. my cousin says it could be loss of compression in a piston or a vacume leak. if you have any other ideas let me know.

 

What year, What engine, how many miles, and transmission? Please describe how your truck seems to lose power, something slipping, feels like the engine is binding up, or perhaps is feels like it is loading up with gas. etc

 

it sounds like it winds up really high, rpms are up around 32, and it isnt going any faster or gaining power, im starting to think coil packs, its 2001 with 200k miles

 

Still waiting for engine and transmission. Can't offer help without your input.

 

if it's a 4.6/5.4 sounds like you blew out a spark plug look at your coils one will probably be broken... If it is a spark plug install a timecert not a helicoil..