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2013-14 Shelby GT500
What is this noise?
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<blockquote data-quote="efnfast" data-source="post: 16639916" data-attributes="member: 104733"><p>Could lifter noise happen on first cold start and then go away when driven/warmed up?</p><p></p><p>On first cold start I've got a slight knocking/tapping noise coming from the passenger side exhaust. If I stand at the front of the car I don't hear anything from the engine. It showed up exactly when I switched from stock exhaust to off-road H + catback. </p><p></p><p>The weird thing is I've listened to some videos and I can hear the same noise coming from other people's passenger pipes when they change out the stock setup. They do a before video - no knocking/tapping noise on passenger side - then they go a first start w/ exhaust and I can definitely hear the same noise (that goes away as it warms up and/or is driven)</p></blockquote><p></p>
[QUOTE="efnfast, post: 16639916, member: 104733"] Could lifter noise happen on first cold start and then go away when driven/warmed up? On first cold start I've got a slight knocking/tapping noise coming from the passenger side exhaust. If I stand at the front of the car I don't hear anything from the engine. It showed up exactly when I switched from stock exhaust to off-road H + catback. The weird thing is I've listened to some videos and I can hear the same noise coming from other people's passenger pipes when they change out the stock setup. They do a before video - no knocking/tapping noise on passenger side - then they go a first start w/ exhaust and I can definitely hear the same noise (that goes away as it warms up and/or is driven) [/QUOTE]
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2013-14 Shelby GT500
What is this noise?
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