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Single Knock When I Hit Gas Petal.

1329 Views 5 Replies 5 Participants Last post by  Zajac0905
While coming from a stop or clutch engaged or neutral, when I hit the gas petal I hear a single knock from engine. Don't know if it's something down the line of spark knock..anyone with similar issue or have heard of this.. only when I hit the gas with a little weight and it's a single knock, but it's repetitive if I hit it again.
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Automatic? If so I wonder if it's the transmission reengaging after the stop.
 

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Since you indicate it occurs in neutral and with the clutch Disengaged (engaged is when your foot is not on the pedal) I will speculate you are hearing the dual mass flywheel taking up the slack (internal springs compress) with a audible 'knock'

Without actually hearing it or knowing the intensity of the sound, my first thought is this is not abnormal.

Rob
 

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Discussion Starter · #6 ·
We run 91 in the dodge viper so I've used that in the car when I did research about it and it's still there, still noticeable..I wish there was a way of recording sound. Not sure how good recording from inside would sound.
 
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