Could be the heat shield that is bolted onto the cross over pipe that connects the two manifolds being loose. It can vibrate and make a pining noise under hard acceleration. Dan --- sweetp01569 <paul.sweet@xxxxxxxxxxxx> wrote: > Not sure. The engine is quiet when gently > accelerating, but if I push > the pedal to the floor, I hear what sound like > pinging, like the > engine can't quite keep up with me gunning it. Then > if I ease up on > the pedal, the sound vanishes. > > What's the difference between pinging sounds and > rocker chatter? > > Paul > >[moderator snip] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/