Alright I have 2 knocking sounds, one is a click (which im not really worried about, im pretty sure i know what it is), and one is a knock:

1: When my car is at a stop light, if it is quiet enough, it sounds like a click everytime an explosion in the cylinder occurs... I am thinkin it is just my nology wires, as those charge up an extra spark and shoot it just after the first one to make a bigger explosion... Now im not sure if that is correct, but let me know if anyone has a better idea..

2: This is the one i am really worried about... When i step on the gas and let out the clutch in first gear, about 65% of the time it creates this really loud knocking sound. Almost like my engine is rocking back and fourth because we have such torquey engines... that could be the only thing i can think would be the case. But what is wierd is that my rpms are at 2000, which doesn't send the car rocking, it is just a knocking in the engine bay. Anyone have an opinion? What should i do?

 

are these new things? or things you just noticed/asked about? if its not new then the ticking is normal in the tC's engine..even stock..its nothing to do with your upgrades....the knocking noise..seems normal but it depends on the severity....if i'm cruising in 4th or 5th and let off the gas, i feel the engine thump...because it twists the opp. direction since its under load from coasting...thats normal....even in first if you arent steady in acceleration, you will feel it rock because of the torque.......i believe everything your describing is normal.i worried about it too at first... you can buy a dampener that is a shock absorber mounted to the engine that takes that engine roll and slows it down so you dont feel it on take hard take offs.....seems kind of pricey though..and you will definately feel engine vibration more....

is that what your describing or something else?

 

oh i like your color too.. i wish i wouldve gotten NB...there was one i couldve bought for the same price, but i had to have FM...now i see a bazillion of them on campus..but no NB's..

 

Another thing -- our cars seem to make strange noises when its cold out. Just something I noticed.

 

Thanks for the complement... FM was my second choice but i figured i would go w/ the NB

and yes our cars do make wierd noises... i noticed that... but what danielnc06 said, i think he correct... thats kind of what i assumed... ill probably just invest in a damper.. sometime...

Wheels come first.. then tints... then racing seats... then 4 point seat belts... then MAYBE i will get the damper haha :-P

this winter has been the toughest for my car.. i lowered it w/ tein s-techs, and put snow tires on that are too large so i am rubbing on almost every bump... my windshield nozzles freeze up a lot... i often have atleast a half an inch of ice on my car cause it sits outside all the time... ice on the road damages my front bumper cause it is so low to the ground... i could go on forever..

But i would never change what i have done... i could never be happier w/ tein s-techs and all that stuff...

 

1. do u have a stock intake? either way, the "ticking" might be something along the intake tract vibrating and possibly contacting a strut bar or other part of the intake tract. theres some vaccuum lines and T's and stuff there that could be the culprit.

2. are u on stock suspension? if not, it could be something in the strut assembly not seated right.

if you are, it might be a busted motor mount, esp. if it feels like your motor is moving excessively.

 

Dampners make the car more noisey not less

 

Exactly. They transfer more engine vibration to the body of the car.

What type of nology wires? If they are just the direct replacement for the COP wires in our car, they are doing nothing at all other than the money they cost you. There is no charging up, boosting, etc going on, since the coil sits right on top of the plug. The wire feeding the coil is a simple low voltage circuit, that recieves zero benefit from an aftermarket wire since there is very little to worry about in terms of loss (that is why they use coil on plug ignition to start with).

If you replaced the coil on plug setup with nology stuff that places the coil pack away from the head, they are doing one more thing other than costing you money... they are downgrading your ignition system. Nology sells a lot of bs crap to make people think they are improving something. One of the best parts of our cars setup is the coil on plug ignition system.

But, that is not your click most likely. There is a VSV on the intake tube that constantly makes a clicking sound. If you have a CAI, it will be louder due to it being mounted on metal. The injectors also make noise (a clicking sound) when they pulse. So either of those could be what you are hearing.

For the knocking, it could be a lot of things. An aftermarket intake is one of the big ones if you have one of those. If it is a K&N, it possibly broke one of its mounts and is rattling against the hole in the fender. This is very common of the K&N, and happens on some of the Injens as well.

Anything attached to the motor can make a noise if the motor moves a good amount.

 

i think the second noise the op was describing is one good clunk sound when engaging first gear at low speed. it comes from the driver's side, and it sounds like a suspension component. i started hearing it a couple months ago, but i can't pin down what it is. i'm going changing my wheels and going in for an alignment tomorrow, so i'll have the dealer try to figure it out.

 

If you are engaging 1st above 10 - 15mph, you should be doing that anyway and it probably will make a noise. I dont touch first unless I am stopped and getting ready to take off.

Some have mentioned issues with a clunk when going into first while sitting still, but what he is describing sounds like he is already in gear, and is accelerating hard from a stop.

 

when i typed low speed, i meant 5 mph or less. and i do match the revs.
i guess maybe the gear is already engaged when it makes the sound. it clunks just once when i first start accelerating.

 

Sorry i haven't posted in awhile...

What engifineer said about the broken CAI mounts sounds like it might be the case. And i trust him because i know he knows pretty much everything about the tc.

It only occurs when i am accelerating from a stop at a red light or a stop sign, and will continue to knock until my rpms reach about 2500 i am guessing.. i will check up on that..

Also it does not happen everytime. I will check all the CAI mounts and such, and post back soon.

 

by the way... engifineer... is that you on the track in your avitar? or someone else?

 

I wouldnt go so far as to say I know everything about the tC Dont want to raise peoples hopes too much! I just grew up with a mechanic for a father and have been a car geek for a long while, so I get used to troubleshooting things Plus, I was given a K&N and ran it for a while to add some decoration to the car. It broke the mounts just like his may have. That and just keeping up with what I can on the car I have heard a lot of others with those issues.

Yep, that is me in my avatar. I hit the local autox events here during the warm parts of the year. The tC does pretty well for what it is. With the new tires I will be running and some alignment tweaks I ahve in mind, it should be a lot better this year hopefully!

 

What suspension setup do you use?

And i am looking at doing some autocross races. Ya i am only 18 so i might wait till im out of college... but im jealous that you race autox.

A lot of fun?

 

I hate to threadjack but I'm also getting a knocking sound...but only at idle and its coming from the passenger side of the engine compartment. I still have the stock pullies so I'm clueless

 

i messed with my intake a little bit... took a look at the mounts and it certainly looks like they are the problem...

 

That's CT for you. I wish I had a garage for my baby. I hate the snow I am supposed to be getting tints Tuesday but since it is supposed to snow I don't know if they can do it that day because they have to heat shrink it. Well anyways good luck with the noise, I hope you find out what it is and are able to fix it and don't worry it is almost spring so no more stupid ice and snow. CT sucks lolz
P.S. Did you check the throttle casing?

 

when was your last oil change? Any oil leaks? I would tell you to rule out a rod knock as quickly as possible. The last thing you need is a bent crankshaft rod causing the piston to knock the side of the cylinder due to a lack of oil in the engine. It's happened to me before, so now everytime I hear something like this its the first thing I think of.