Thread: Turbo spool on start up?
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Old 10-18-2007, 04:55 PM
cchase cchase is offline
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Join Date: May 2007
Location: Columbus, OH
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its your Exhuast back pressure valve, its holding the exhuast air into the intake to help your truck warm up, its completly normal. If you have an exhaust it magifines it.
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