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08 one owner senioir owned perfectly maintained 190,000 miles have fluff poof sound coming out of the exhaust

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08 SI
#1
this used to indicate a valve probelm.."poof" "flutter? every so often every 4 or so seconds at normal idle --standing behind the vehicle at the muffler.-anything to be concernced about ..?

getting ready to do the 200,000 mile maintanice routine-..valve adj. and plugs etc--Thank you
 
OP
R
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What I Drive
08 SI
Thread Starter #2
so no responses or what??did plugs valve adj still jave the flutter runs perfect????comeon you kids...what say you??
 


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