I have the GM stage 2 with an intake, no tuning mods. Its been getting cooler out in the 50's at night, I don't know if temp has anything to do with it though. Across all cylinders I hear loud ticking coming from the top of the motor. I change my plugs every 10k miles so its not that. This only happens at idle, when i give it gas it will go away. And it does not happen all the time. If I shut it off and turn it back on it will go away for awhile. Anyone hear this before? It is running smooth and knock is at 0.0 on the aeroforce gauge. Any suggestions, theres no lack of power either, just sounds like a piece...

 

You are most likely hearing injector ticking, this is nothing to worry about.

 

Yeah thats what someone else told me, I just have never heard them that loud. I can hear it in my car with all the windows up and I have a loud exhaust.

 

Hmm, you shouldn't be able to hear the ticking usually from inside. How are the idler pulleys? Sometimes those will make noise as well, I know mine does at cold starts, but once the engine is warm, it does go away. This noise is also audible from inside.

 

Supercharger knock....

 

Could be the timing chain tensioner

 

Its not coming from the supercharger, i can hear it on the sides and top of the motor.

 

Ive heard the timing chain gives out a dandy noise sometimes...

Pretty sure its a clicking sound as well...

 

great... Well thank god for the 100k mile powertrain warranty!

 

yeah yeah.........i always get that too.....and im running stock....
cept mines sounds like its coming from the area around the supercharger throttle body....
it annoys me sometimes....cause i've only had my car for less than a year.

 

Mine ticks do, but it doesn't matter what the temp is. If it's just the injector thing than that's fine. Always has me a little worried and confused 'cause I didn't know what it was.

 

Um...what?!?

Is that even possible?

 

yea its called super-retarding...

 

?? Newbies baffle me.

Go start your car early in the am when it's nice and cold out. Listen to the knock. Come here, search for JonyB's thread on the supercharger knock. Kiss my feet.