5LETR

I am having some trouble and wanted to see if I am on the right track.

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

zracer28

iTrader: (1)

Sounds like you are on the right track....Change that fuel filter and hopefully that will fix your problem.

Are you burning any oil?

GTObsessor

iTrader: (2)

I'm having the same problem and the fuel filter seemed to help it a lil but it's still there... with me it could be a timing problem. Oh yah... throw in some 100 octane in it if you wanna get on it w/ out hurting it... helps A LOT. Not straight 100 - but like 50/50 or somewhere around there. Good luck!

5LETR

I will add a new fuel filter to my list of things to do. I did change out the thermo and have it running cooler whcih seemed to help out a lot. Not near the detonation. More to come.....