coupe4 Posted September 25, 2021 Share Posted September 25, 2021 hello folks,i have a 2002 tt [ary engine]and the air pump whistles on cold start up for about a minute, and then its fine,i removed it last week and replaced all the bolts as i was told this would reduce the noise but it didnt,im tempted to just disconnect it,has anybody any info on these pumps as im told they were just a phase vag went through and they dont do much for the emissions anyway,any advice would be really appreciated, thanks greg. Quote Link to comment Share on other sites More sharing options...
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