High rpm ticking/pinging
Before you ask, I have done extensive searches and still need more information.
Symptoms: Clacking/ticking/rattling starting at 4000rpms and continuing on up. I have new wires, stock MAF, lid, FTRA. It sounds like valvetrain noise, it is loud and sounds damaging.
I believe it is detonation. IAT was around 95 degrees. I had a little KR, but not much. A/F is between 880 - 915 milavolts throughout the rpm range, but it is closer to 880 towards redline.
Solution: New plugs and clean with Seafoam. I have a new thermostat and will install it tomorrow and lower my fan temps. I am picking up a PCV valve tomrrow as well. After that I am at a loss. I heard change out the fuel filter, what am I missing. Any help would be appreciated.
Frank
Are you burning any oil?


