Alright I did a search, and all I could come up with is what the ticking noise is when the car is shut off. For about 2 weeks now I have herd a weird knocking noise coming from the motor. It doesn't do it when I start it up, or when I idle. After I come back after a freeway drive or the car has been running for awhile, it will make a loud enough knocking noise for me to hear it coming from the motor. Exactly where at I have no idea since it will not do it when it idles. In my complex I go down a slight little hill so I leave it in 2nd gear and let it wind down and it will make the knocking sound, once I give it some gas and get it a little above 2k it seems to go away, or if i push the clutch in it will stop making the noise. I was wondering if I should take this in and have it looked at, if it is really serious? or if it is just one of those anoying things you have to put up with since we own cobalts?

 

hm.. start simple...

check to see if your low on oil... report back when this is complete...

does it sound like valvetrain?

 

doesn't every car have that ticking noise after you turn the car off. I mean my camaro use to do it too I believe its a normal noise.

 

I checked the oil level and it is right where it should be. As I said it is not a ticking noise. It is a knocking noise and it is happening when the car is running, in 2nd gear around 2k rpms. It sounds like it is coming from the top of the motor but beyond that I cannot really tell. I have no check engine lights, and the car idle fines.

 

does the car feel any different under load?

 

not really, the car feels fine, it pulls just like it always has.

 

I gotta get my oil changed here anyways so I will have them check out the timing chain while its at the dealership

 

did you check the alignment of your ingalls?

 

that is a good point, I haven't checked it since I installed it last summer. Whats the word on them moving just enough to mis align themseleves?

 

i thought it's pretty well common knowledge that this was the cat cooling down.... cars have done this for years...

 

read it again.. you read his remarks wrong.. i thought he was talking about that at first too