F-Bodeee

My engine (00' Camaro SS M6 stock) is making a tapping sound. Im not sure what it is. It started today after i changed the plugs with a friend. The tapping increases as the RPMs increase. It sounds like its coming from the #1 cylinder area. We were changing the plugs and dropped one and it fell inside the motor mount so we couldnt get it. We then put an old plug in so there were 7 new plugs and 1 old plug. It then threw a #1 cyl. misfire code so i replaced that plug with a new one and the code didnt show up anymore after it was deleted. Oil was just changed. We arent sure if we clicked the #8 plug boot in all the way or not. Would this cause a tapping? The car seems to be running fine. No codes are being thrown anymore. I bought the car 4 days ago and it wasnt making a tapping. Could piston slap just start up like that? Any help greatly appreciated. Thanks

Ru2n00n3er

iTrader: (13)

I think I might have this problem as well. I've got a ticking sound that is also rpm dependant, but I can't figure out what it's from. I thought it was an exhaust leak but Speed Inc. couldn't find one. It's started ticking after a header/new spark plug install.

1jfuddle

iTrader: (7)

Check and recheck the plugs. A couple years ago, I had a tapping sound that I could not track down. It got bad enough that after exhausting every resource I had, I took it to a dealer. 20 minutes after I paid nearly $100 for a diagnosis of a collapsed lifter, a spark plug completely backed out and scared me half to death. Check and recheck the plugs.

-Joseph-

iTrader: (12)

Could be piston slap which is common and doesn't seem to have long-term effects on the engines I've torn down. Since your car is a M6, its very possible that a previous owner has a misshift incident (overrev) which could have bent some pushrods. The pushrods luckily are very weak and usually prevent further engine damage during an overrev. I have tons of stock take-out pushrods you can have for shipping costs if you want to save a few bucks if thats what it turns out to be.

30th droptop

iTrader: (-1)

Did the sound start right after the plug change? If so, it's almost for sure going to turn out to be a poorly connected wire or a loose plug. Valve train noise has a slightly different sound, and a piston slap sounds different than the other sounds. If you're not sure, it's best to get a professional opinion.

F-Bodeee

thats what it was. #8 boot was loose. Thanks guys

Ru2n00n3er

iTrader: (13)

You mean the boot that seats over the plug was loose? I'm still trying to figure out what is wrong with mine.

I have overevved it once in the past, but haven't had any problems with it. If I had a bent pushrod, is it just because of the header install that now I can hear it? I know the headers will transmit the sound more than the stock manifolds, so maybe the noise is just audible now.

Ru2n00n3er

iTrader: (13)

Anyone have any ideas as to what my ticking sound could be?

5POINT7

You sure the plugs were tightened down all the way? Check the plug wire boot to make sure it was snug?

Also, how loud is the ticking? My Formula ticked all the time...LS1's just tick.

Have your fuel injectors ever been cleaned since you bought the car?

Ru2n00n3er

iTrader: (13)

I didn't torque the spark plugs down, but I tightened all of them until they were snug. Fuel injectors haven't been cleaned.
The reason I'm wondering if it's something I did was because the ticking started after the headers/spark plug change. But that could possibly be just because now you can hear it without the cast iron manifolds in the way.

F-Bodeee

Ya, my #1 plug wasn't tightened all the way, thats why it was ticking. It sounded like an electrical tick. Like a spark kinda.

Ru2n00n3er

iTrader: (13)

That's what my father thought mine sounded like to, but I just figured it was an exhaust leak. I need to check if they're tight enough. Anyone know what they should be torqued to? Is it 22 ft-lbs?

5POINT7

I just tightened mine until they were snug.

F-Bodeee

you didn't change your spark plugs, "A.M."

5POINT7

Actually I did during the cam install.

Did you forget to post up your death to that stock 99-04 GT?