My 2000 V6 LS has 70,000 miles on it and recently began pinging. I use only 92 octane gasoline, and the problem gets only gets worse as the engine gets warmer. I don't know if the fuel filter or pcv valve have ever been replaced, or if the injectors have ever been cleaned.
I live in the mountains and driving uphill only makes the pining worse as the load on the engine increases.
Pour a bottle of Redline S-1 cleaner in the tank (yes, the whole bottle). If that doesn't help, change your plugs. I had the same problem at about the same mileage...
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Chris Gorman -LLSOC Forum Moderator-
2000 LS8 sport (lowered 2", LLSOC Intake, Magnaflow catback, tint, more..)
Engine ping
