Okay soo i installed my k&N intake last night...and now i hear a ticking noise when it is idling when i have the hood open... My friend says it was like that before but me i dont remember it ever doing that... so do any of you 2.4l guys want to just pop the hood and listen to your car idle and tell me if u got a little ticking noise...

does anyone have any idea if it is normal

 

...what octane gas do you use?

does it continue to do it if the car is off?

 

no it does not continue and it isnt a loud ticking...89 octane

does anyone else have this problem?? please check...and i dont think its spark knock....its not that loud its just really faint tick tick tick

 

u might need 91 octane....u need premium for the ss

 

ehhh, i believe the manual says 89+..but yea "try" 91 next time and see if it goes away... you sure its not just something vibrating

 

nooo its a little tick...and i didnt notice it until i put my intake in....will any of u guys gooo check for mee?
thanks

anybody?

 

Ecotec's are noisy , it's prolly just the valvetrain making noise.

 

okay...it only ticks when it is idling...once i rev it up...it just like goes away... or the engine over powers the noise..

 

That is the normal sound of the valvetrain. It is probably louder beacause the big air box on the engine isn't muffling it as much. The cat also makes little ticking noises when the car is running and for a little while after it is off.

Also 89 octane sould be fine. I have tried 89, 91, and 93 gas and monitored the knock sensors with my daskhawk and I have found no difference in my 0-60 times and the engine doesn't register any issues with knock. Every once in a while with 89 I have seen 1 knock out of 100 cycles which can happen with 91. So there might be a slightly higher chance of knock but nothing to worry about.

 

okay thanks brother

 

if it is a five speed, try it with the clutch pedal pushed in. mine does that, took 3 techs before someone told me that was normal on the 2.4s

 

Yeah normal valvetrain noise. All the cobalts make some noise at idle.

Also putting higher octane gas in your car does nothing at idle... it only matters when you are actually putting the engine under a load when it needs the extra protection from detonation or unless you run like 13:1 compression in the engine.

 

It could also be your fuel injectors making the nosie which would also be completely normal!

Mike

 

I almost forgot about the injectors. They also go click click as they open and close.

 

yeah i have the same ticking on a 2.2 it's just the injectors.

 

That's why you're not supposed to remove that cheezy plastic cover. LOL
Wop

 

it's a time bomb...

 

i have that ticking your talking about but now my car is at the dealer bc the when i rev it up the exhuast makes a wicked mean sound for the worst and when i brought it in they asked if i had an oil change recently bc there was oil all over the bottom of my engine,fuel rail, headers everything. but of course they wont fix it...... bc theres no cel

 

some of the SCs have been blowing oil out at the dipstick.

check the neck of it, see if it's wet there.