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knocking engine ls3

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Old Oct 10, 2007 | 02:40 PM
  #1  
cvette100's Avatar
cvette100
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Default knocking engine ls3

has anyone else noticed the engine knock around 2500 rpm
not under full power? my 08 sounds like the rods are about to come
out. drove it 900 miles from atlanta ga to texas and no proplems
i wonder if this noise is normal.
thanks,
cvette 100
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Old Oct 10, 2007 | 02:53 PM
  #2  
SnapperDragon's Avatar
SnapperDragon
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From: Canton/Detroit Michigan
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Maybe bad gas?
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Old Oct 10, 2007 | 03:01 PM
  #3  
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Braumeister
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From: St. Peters Mo
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You have checked the oil haven't you??
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Old Oct 10, 2007 | 03:01 PM
  #4  
3 Z06ZR1's Avatar
3 Z06ZR1
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From: salem OR
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Originally Posted by cvette100
has anyone else noticed the engine knock around 2500 rpm
not under full power? my 08 sounds like the rods are about to come
out. drove it 900 miles from atlanta ga to texas and no proplems
i wonder if this noise is normal.
thanks,
cvette 100
Not normal! 4500 miles on mine and the motor is very quiet!
To the dealer quickly!
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Old Oct 10, 2007 | 03:21 PM
  #5  
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Thrill6
Burning Brakes
 
Joined: May 2007
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From: Columbia Maryland
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Are you using premium gas?
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Old Oct 10, 2007 | 04:05 PM
  #6  
drivinfast's Avatar
drivinfast
Melting Slicks
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From: Houston 06 C6 Ysi SC 402 fgd TX
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Originally Posted by SnapperDragon
Maybe bad gas?
Threads on this indicate Citgo, Kroger, Sams, many others that say 93 and 91 ocatane are not anywhere near that.

Chevron, Shell others are the recommended ones.

Ever now and then I'll get lucky and get a good batch of off brand
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