I hope this is the right forum to ask this. My 06 SRT10 has 500 miles on it right now. When idling the loudest sound from under the hood is valvetrain noise. Is this normal (solid lifters maybe?) or is it service time already. It's not very loud really, the car is pretty quiet at idle.
new viper valvetrain noise (tick, tick, tick)
- Thread starter sctdev
- Start date
It is normal. I was concerned about the same noise when I first picked up my 06' SRT-10. It is a combination of valve/lifter noise and fuel injector noise. It sounds like a solid lift engine that needs a valve adjustment. I prefer the saying that someone else referred to as "A sewing machine". 
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Congrats on the successful SEARCH. Your dilligence deserves an answer:
When the Viper went to the light-weight hyper-eutechtic pistons in MY2000, with a tighter bore, extra ring, and the softer ('cream-puff') cam grind, the lower rotating masses combined in the motor itself and made it very quiet, compared to 92-99 versions with the heavier forged pistons and more aggressive cams.
Hence, the sewing-machine moniker 2000+.
The actual klickity sound you hear is 50% FUEL INJECTORS and 15% lifters, plus the other mechanicals. Mostly injectors....a simple solid probe or stethoscope confirms the source.
