I went mudding last Friday night and my truck ran fine when I parked it but the next day I started it and I have a ticking noise after my rpm is over 1500 it doesn't have any tick before then, I gunned it a few times and it hasn't last any power. The engine is a 2000 5.3 that just rolled a 100,000 miles. Any help would be great.
Thanks, Dustin

 

Can you get a sound clip? Blown header gasket?