by Brewer on Wed, 14 May 2014 9:43 +0000
I think I know the sound you mean. My 2010 sr5 does the same thing. Doesn't make the noise when driven harder, only when light throttle is being used. Got about 100,000 on mine, I've had it for 15,000. Seems to go away after about 10 mins of driving on mine. Might be something to do with the warm up cycle. It's not a harsh sound like a faulty injector, just a bit louder than when it's warm.
I'd be interested to know if your cleaning makes any difference.