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Wheezing sound behind dash on a '98 Blazer
I own a '98 Blazer.....when it starts up it has this very annoying wheezing sound behind the dash. The 'behind the dash' noise continues when it's in drive unless you throw the RPM's above 1500 or so at which time it stops completely.
I thought maybe it's something in the exhaust system....maybe back pressure and when the RPM's kick up it has enough pressure to free up whatever is causing the noise?
Any help would be great
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