a burned exhaust valve is a indication of a lean fuel / air mixture in that cylinder
try running a full can or 2 of seafoam mixed in with the fuel in the tank ( 1 can of seafoam per tank )
let the seafoam clean out any clogged fuel injectors as you use your vehicle
Last edited by cheese_man; 04-19-2014 at 05:32 PM.
Reason: added wording