Generation III Internal Engine 1997-2006 LS1 | LS6
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Old Feb 20, 2003 | 10:11 PM
  #1  
Jim's Avatar
Jim
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Staging Lane
 
Joined: Nov 2002
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From: Florida
Default burnt valve

How can you tell if you have a burnt valve? A couple of people told me that is what my problem is. My car started running really rough the other day while driving around town. I know its loading up on fuel really bad, but it feels like a very bad miss. Idle quality is very poor. Has anyone ever had a problem with a burnt valve?
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Old Feb 20, 2003 | 10:48 PM
  #2  
Tim Sloper's Avatar
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From: Orlando, FL
Default Re: burnt valve

Jim,

There a 3 things more likely to have happened than a burnt valve...

1) bent pushrod (if using stock pushrods)
2) bent valve
3) broken/weak valve spring

What valvetrain mods do you have (if any)? Have you had any over-revs recently?

Tim
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Old Feb 21, 2003 | 08:56 PM
  #3  
LS1derfull's Avatar
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From: new england
Default Re: burnt valve

I agree with Tim Sloper, burnt valves were usually from poor intake manifold fuel distribution, not a problem on LS1 motors.
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