Re: 04 Explorer Broken Valve Spring
I have a 02' Mountaineer, 4.6L V8. Just turned 70K. Wife said it started running rough. My mechanic checked it out and came up with that diagnosis. Two broken springs on two different cylinders. Mechanic said third instance in his shop. He says the manufacturer would not acknowledge a problem Rebuilt heads with after market springs and replaced damaged guide. VERY EXPENSIVE.