R Raul New member Sep 8, 2010 #1 its only somtimes i dont know if its the heads (they need adjusting or if u can) or something else, not sure, heard it in another explorer too.. what is it? and r the heads from a mustang?
its only somtimes i dont know if its the heads (they need adjusting or if u can) or something else, not sure, heard it in another explorer too.. what is it? and r the heads from a mustang?
