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Discussion Starter #1 (Edited)
What's that knocking More info.

I just wanted to run this past some of you to see what you think. I'm hearing a slight knocking sound from the engine when I start my car up cold and pull it out of the garage. I don't hear it after I pull out on to the road. It seems to run great on the road. It is a 1999 coupe with 57,232 miles on it. Thanks for your comments

More info. I noticed that the slight knocking sound would happen when the label on the serpentine would come across the top of the alternator.

Luke47
 

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did you put premium gas in it
 

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Its probably piston slap. From what I hear, its common on these cars. Whether its harmful is up for debate.
 
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