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Old 07-02-2014, 09:33 PM   #1
Civ
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Default 06 WRX front ticking/clicking noise

Just a few details about my car. 2006 WRX. 103XXX miles. Bought the car with 55XXX miles on it. Stock tranny. Stock rotors and brakes (at least I believe so). Haven't changed much except going to Stage 2 with supporting mods.

Over the weekend I took notice to this noise. I haven't driven my car much since then as I'm hesitant to make the problem worse than it is. I'll try my best to describe what I'm hearing and when it occurs.

From 2nd-4th gear when I'm decelerating using "engine/tranny" braking the noise comes into play at under 2K rpms. It hardly occurs when I tap or use the brakes but it can be heard slightly. I was able to hear it more distinctly when just using the engine/tranny to brake on its own.

I've also taken notice that the noise occurs when I turn right or left slowly when decelerating as well. I can't pin point it's location and I don't have a solid camera that I can hook up underneath my car to see where it's coming from.

That's pretty much all I can come up with. I've tried searching through Google to see what was closest to my problem but nothing really described the decelerating part I did.

My closest answers thus far are: Brakes are loose, CV is broken or Rotors are rubbing on the brake shield.

If anyone has had a similar incident or knows what my problem is that would be greatly appreciated. Thanks in advance for any links to possible solutions as well!
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Old 07-02-2014, 09:52 PM   #2
SlimJim8804
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Doubt it's the brakes. Only way I could see that being a possible scenario is if a piston was frozen and half the pad was flopping about. (Actually have seen this before on the 4/2pot equipped WRXs), don't recall if there was any noise associated with it or what it sounded like.

Brakes are simple enough to inspect anyway. Not a bad idea to see if any pistons are frozen up. Common in the North East.

Axle would be my top suspect.
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Old 07-03-2014, 03:06 PM   #3
Cobra93
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yeah, that sounds like an axle.
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Old 07-03-2014, 08:29 PM   #4
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....mmmmm....weird....
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Old 07-04-2014, 05:41 PM   #5
Civ
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Update: I should have done this sooner but the idea never occurred to me until today. While the car was parked I did a few revs and the same noise happened to be noticeable even while sitting still. Kept the car in neutral and revved several times.

Twice I noticed the knocking sound inside the car but I recorded it with my phone. The phone itself caught more noises underneath my car. Currently uploading a video to YouTube. I'll hopefully have a link tonight to share.

Fingers crossed I don't see that it's a thrown rod
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Old 07-04-2014, 06:15 PM   #6
Uncle Scotty
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does it do it at 2800-3200 rpm's???

if so, that is almost certainly the $5000 noise
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Old 07-04-2014, 06:26 PM   #7
Civ
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From what I noticed while listening to it and from the video it happens under 2500 rpms. I took a look at a few other videos and I'm really starting to believe it is.

But I'll still upload my video and link it here to get an opinion from you fellas.

In the meantime, anyone care to make a contribution to save my Ru? Maybe an engine? Some $$$? Being broke sucks lol
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Old 07-04-2014, 07:10 PM   #8
MikeG4936
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My 06 WRX makes the same noise. Been doing it for 14k miles now. It's not the engine. I'm pretty sure its either the heat shield around the headers, or maybe a slight leak around the wastegate actuator arm on the turbo... Post up a video and we'll tell you for sure.
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Old 07-04-2014, 07:24 PM   #9
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As promised the video! I hope it really isn't a rod.

Mike I'm praying what you just said is my solution. My ray of hope right now lol
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Old 07-05-2014, 11:18 AM   #10
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Video posted. Anybody?
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Old 07-05-2014, 04:23 PM   #11
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Yeah, that's the EXACT sound that mine has. Probably nothing to worry about. Might want to check if your oil pickup has cracked, but I've put 20K + miles on it since I first noticed it and it hasn't gotten any worse. If you do hear it getting worse, then it might be a rod/bearing.....

Have you sent an oil sample to Blackstone? That will tell you for 100% certain if you have a bearing issue... mine comes back clean every oil change even with that noise...
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Old 07-06-2014, 10:23 AM   #12
Civ
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Quote:
Originally Posted by MikeG4936 View Post
Yeah, that's the EXACT sound that mine has. Probably nothing to worry about. Might want to check if your oil pickup has cracked, but I've put 20K + miles on it since I first noticed it and it hasn't gotten any worse. If you do hear it getting worse, then it might be a rod/bearing..... Have you sent an oil sample to Blackstone? That will tell you for 100% certain if you have a bearing issue... mine comes back clean every oil change even with that noise...
I've never sent an oil sample in to be sure. I took a look at the site and maybe I'll try it out to make sure for safety. Thanks for that.

When I slow down while driving the noise will disappear if I stop quicker or if I tap the brakes abruptly, let off and continue to decelerate. It's a tricky noise. Wish I had a GoPro or some type of camera to help me identify where this is coming from.

Also to note: I drove my car through some tunnels and by some buildings to hear the sounds echoing and to figure out where and when it occurred most often. Two things I know for sure:

1. Noise occurs decelerating and continuously from 2000rpms-1500rpms when left in gear only in 2nd-4th gears. Rarely 3rd but more often in 2nd and 4th.

2. The noise also occurs when turning right in between those rpms. Sometimes when accelerating. Mostly when decelerating. Doesn't seem to occur at all when turning left.

I figured this out driving around for a couple miles. To me, this doesn't seem like rod knock or a thrown rod. Something outside the engine or another component that requires the removal of some parts to get to it haha. Either way, I'm stumped.

But thanks Mike! You've given me hope and today I'm going to have a look myself.
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Old 07-06-2014, 12:24 PM   #13
Civ
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UPDATE: tranny dipstick was loose. It was raised near the intercooler. Pushed it in and thought I may have solved my problems. Went for a test drive and heard the noise again.

So I took off splash guard underneath car and decided to check all heat shield. BINGO! We found a winner. The middle heat shield as I'll describe it that covers the exhaust manifold heading to the up pipe (singular skinny looking one with about 8 small bolts holding it into place) was loose as a door knob! Tapped it with my palm thinking it was still hot, which it was, and it clanked against the other heat shields. Grabbed it with some gloves and I could slightly twist it back and forth a little.

It's practically touching nothing. The only things keeping it in there are the other heat shields from blocking it off. The bolts are too rusty and my jack doesn't go any higher. Going to try and find a friend or a garage that wouldn't mind helping me get under there and cutting this little nuisance out!

Mike, I suggest you take a look and see for yourself if this could be your dilemma as well!

Another thing to note: I said it only made noise when I turned right. When I moved it with my hand, there's hardly any play on the drivers side of the shield towards the major components of the manifold. But it can slide towards the lower up pipe heat shield a little. Thus giving me my noise when turning right!
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Old 07-06-2014, 03:43 PM   #14
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Nice find dude.... I suspected that exact heat shield was the problem on mine as well, but never really spent the time to look at it after my Blackstone reports came back 100% clean.
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