Cold starting issues
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New User
Joined: Jan 2006
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Cold starting issues
During cold startups my 99 PS make lots of noise coming from the exhaust (4"). It is not constant, it acts like it is building pressure and releases. It quits when the engine is warm. While driving I do feel a loss of power but rpms do not appear to change. Any ideas would be helpful. Thanks
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Enjoy FTE....and
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Joined: Aug 2005
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From: Eastern Shore Md
Originally Posted by OfficerDangle
exhaust back pressure valve, helps warm the motor up
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Joined: Jan 2006
Posts: 1,605
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From: Elkhorn, WI
that is normal. it is just your exhaust back pressure valve closing to put a load on the engine to help it warm up. it wil open when you hit normal operating temp or when you hit the throttle hard and need power right away. if you live where it is cold you should not delete it
-Justin
-Justin
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From: The Great Plains
Originally Posted by RushN350
Probably, If you don't want it unplug it. Iv'e had mine unplugged for quite awhile now with no problem. Some have said that it will throw a code but it hasn't happened to me.
