Quote:
Originally Posted by Fitz
You've got Headers on that truck! Headers are notorious for leaks. A very small exhaust leak can, and often does, sound just like a lifter ticking. If you don't have a long (14-16 inch) screwdriver get a length of 1/4 in iron rod. Use it as a stethoscope at each header tube right at the flange, if one is louder, you just found your "tick".
|
For sure you need to check this, and rule it out. Also, check your pulleys, fan, and weird things that increase speed with engine rpm. Fuel pump, or rod could be the cause still since you never changed the cam. Best of luck.