Thread: gt 3.8 run's rough on idle
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Old 06-09-2011, 09:32 AM   #2
GTP Dad
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Re: gt 3.8 run's rough on idle
Which vacuum hose are you unplugging? I would check and replace the PCV valve if you haven't done so in the past several months, it could be sticking and not allowing air into the engine.
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