has anybody else checked their compression on their truck?mines a 2000 w/ a 5.4 and i got 174 psi on 1-4 .i was just wonderin where i'm at as far as average,it also has 115,000 miles on it.i didn't do the other side cause i had to take the fuel rail off to get to the plugs,so doin a compression test with no fuel rail would be about stupid.and yes i did try it,didn't work.atleast i learned from it.