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Old 04-19-2017, 10:15 AM   #1
nmh5028
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Default Is this sound normal when warming up?

I have a 2016 WRX with 13xxx miles. I just started noticing a high pitched sound at idle as the engine warms up. It doesn't happen immediately on a cold start, but it seems to start once the temperature gauge gets to the 110-120* range, and doesn't let up until above maybe 170-180. I don't recall the car making this noise until recently, but I can't say for sure that it hasn't been. Since I first noticed it, it has happened every time I drive the car.

- you can hear the high pitched sound go away when RPMs rise

- sound is gone


No performance mods other than AP Stage 1 91 OTS tune. I tried flashing back to stock and it did not fix the sound. My nearest dealer is over an hour away, so I didn't want to drive all the way there if I'm just hearing things or it is normal. Thanks!
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Last edited by nmh5028; 04-19-2017 at 10:22 AM.
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Old 04-19-2017, 10:21 AM   #2
simpleJ
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Normal as normal can be
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Old 04-19-2017, 10:31 AM   #3
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Originally Posted by simpleJ View Post
Normal as normal can be
Thanks, any reason that it just started doing it at the 12-13k mark? I don't think I've been missing it for 10k miles
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Old 04-19-2017, 11:40 AM   #4
simpleJ
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Mines at 60k and does it. Have noticed since I put in group n stuff 30k+ miles ago
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Old 04-19-2017, 05:29 PM   #5
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Quote:
Originally Posted by simpleJ View Post
Mines at 60k and does it. Have noticed since I put in group n stuff 30k+ miles ago
Has it gotten any worse/louder over the last 30k?

OP, I have this exact same noise and it's been driving me crazy! I also noticed I can't hear it at cold start... it's usually if I shut my car off and then start it back up after it's cooled down to the same temp range you mentioned.

I've gone as far as listening under the hood because it sounds to me like a whirring pulley or some sort of bearing noise... maybe side-affects of the TOB noise that we hear on moist days? I'm hesitant to take it to a dealer because the conditions are so specific to recreate the noise and they will probably just say it's normal, even if they hear it.

I have 18.5k on my car, noticed the noise around 15k...and it definitely wasn't there before then, just kind of started out of nowhere.
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Old 04-19-2017, 07:02 PM   #6
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push the clutch in and see if it changes.
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Old 04-19-2017, 07:21 PM   #7
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Originally Posted by n2oiroc View Post
push the clutch in and see if it changes.
Nope, doesn't matter where the clutch is. It even does it if I'm in gear driving at a low RPM
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Old 04-19-2017, 09:07 PM   #8
simpleJ
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I don't remember if it got worse. But I def have it:

The noise is almost "rotational" in nature
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Old 04-20-2017, 12:44 AM   #9
DreamyyWRX
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normal i believe
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Old 04-20-2017, 02:22 AM   #10
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my 2016 with 10k miles does not make that noise. anyone pop the hood and get an idea on the general area?
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Old 04-20-2017, 09:28 AM   #11
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Have not heard this on mine but vehicles tend to make funny noises when they're warming up. Normally if the noise goes away, I wouldn't worry.
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Old 04-20-2017, 10:57 AM   #12
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Originally Posted by mishapopa View Post
Have not heard this on mine but vehicles tend to make funny noises when they're warming up. Normally if the noise goes away, I wouldn't worry.

The reason I was concerned in the first place is that I'm planning on purchasing the COBB stage 2 kit, and I didn't want to run into any problems with warranty claims if it ends up being indications of a problem. It sounds like I'm not the only one who has the noise, which is reassuring (I guess).


I'll try to get a better idea of where the noise is coming from and report back in the next day or so. Sounds like it develops in the 12-15k range from the few reports here.
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Old 04-22-2017, 12:45 AM   #13
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Quote:
Originally Posted by n2oiroc View Post
my 2016 with 10k miles does not make that noise. anyone pop the hood and get an idea on the general area?
I popped the hood and couldn't pinpoint the noise - I will try again this weekend if I get a chance. I have one of those automotive stethoscope things that I can try Sounds like a pulley to me, or bearing noise.


Quote:
Originally Posted by nmh5028 View Post
The reason I was concerned in the first place is that I'm planning on purchasing the COBB stage 2 kit, and I didn't want to run into any problems with warranty claims if it ends up being indications of a problem. It sounds like I'm not the only one who has the noise, which is reassuring (I guess).


I'll try to get a better idea of where the noise is coming from and report back in the next day or so. Sounds like it develops in the 12-15k range from the few reports here.
Same, I am finally about to pull the trigger on an Accessport and now I am paranoid Please post if you figure anything out, I will do the same.
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Old 04-22-2017, 03:53 PM   #14
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I think it sounds like it's in the pulleys up front. I honestly think it it louder from inside the car, though, so I'm not really sure
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Old 04-27-2017, 08:59 PM   #15
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Exactly the same issue here with the same symptoms. Driving me mad, FFS its a new car. Was not able to pinpoint it either. almost sounds like a turbo flutter!
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Old 04-27-2017, 09:06 PM   #16
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Originally Posted by e363ma78 View Post
Exactly the same issue here with the same symptoms. Driving me mad, FFS its a new car. Was not able to pinpoint it either. almost sounds like a turbo flutter!
How many miles on yours?

Anyone close enough to a dealer that they can stop in and have someone listen? My dealer is almost 2 hours away
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Old 04-27-2017, 09:17 PM   #17
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Originally Posted by nmh5028 View Post
How many miles on yours?

Anyone close enough to a dealer that they can stop in and have someone listen? My dealer is almost 2 hours away
Just ticked over 20,000. To me the biggest issue is by the time I drive to the dealer the sound will disappear! meaning i will have to wait couple of hours before the engine is fully cold to show the problem. It might have been present for a while i just never noticed because I always had radio on as soon as i start the engine, only one day i didn't, that's when i noticed it.

Last edited by e363ma78; 04-27-2017 at 09:26 PM.
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Old 08-06-2017, 09:32 PM   #18
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Just had the entire clutch assembly replaced with an aftermarket one, the sound is still there. So definitely not TOB related.
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Old 08-07-2017, 09:27 AM   #19
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Quote:
Originally Posted by e363ma78 View Post
Just had the entire clutch assembly replaced with an aftermarket one, the sound is still there. So definitely not TOB related.
So... you're telling me you think your aftermarket kit doesn't use the same TOB as stock?

If that's the case I've got some very bad news for you, it almost certainly does....
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Old 08-07-2017, 10:24 AM   #20
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Originally Posted by uofime View Post
So... you're telling me you think your aftermarket kit doesn't use the same TOB as stock?

If that's the case I've got some very bad news for you, it almost certainly does....
There's a "revised" TOB from Subaru, you'll want that one. The new one I got with my ACT HD clutch sounded like a bird chirping under my hood. Fortunately when my motor blew up it was the perfect opportunity to change it.
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Old 08-08-2017, 12:29 AM   #21
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Originally Posted by uofime View Post
So... you're telling me you think your aftermarket kit doesn't use the same TOB as stock?

If that's the case I've got some very bad news for you, it almost certainly does....
TOB looked different from stock BUT even if it was the same (be honest i cant be 100%) new throwout bearing would normally fix the issue even if for short time, pedal feel is also different yet the sound is exactly as before and disappears when the motor is warmed up & does not change in anyway if the clutch pedal is pressed. So what I'M saying is that i don't think the noise in the video is TOB related.

Last edited by e363ma78; 08-08-2017 at 02:22 AM.
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Old 02-02-2019, 09:44 AM   #22
akanhi
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Reviving this old thread.

By any chance, is the sound like this?:

I took mine to Subaru and the tech said it was valvetrain noise and its normal. The thing is that the car didnt start doing it until these recent colder months. I have owned it since new (2017 MY) and it didn't make this noise before. My car is completely stock.

Has anyone solved this problem?
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Old 02-02-2019, 07:28 PM   #23
jasonwrx86
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Sounds pretty normal.
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Old 02-03-2019, 10:23 AM   #24
TrashyMG
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@akanhi,
My '19 WRX is the fourth Subaru I've own over the years, three of which I bought new off the lot. This sounds like the normal operating sound of a Subaru Boxer Engine...
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Old 02-04-2019, 09:26 PM   #25
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@akanhi,
My '19 WRX is the fourth Subaru I've own over the years, three of which I bought new off the lot. This sounds like the normal operating sound of a Subaru Boxer Engine...
I have owned my car since new also, experience with a 15 year old subaru in the family. I am not referring to the ticking noise or even the characteristic boxer engine noise. I am talking about that higher pitched background tapping noise (goes away when oil temp reaches 90C or so). This noise is also slightly irregular at idle. It has never made this noise until a few months ago, when outside started to get colder. I drive this car everyday so I know it what is normal. Aslo, my two associates are not experiencing the same problem (2015MY, 2017MY)

I took it to the dealer and when the tech examined it, he acknowledged the abnormal noise and he was sure it had something to do with a TSB related to the camshaft gear. He asked to keep it for the shop foreman to look at and I agreed.

A few hours later, I return and he tells me its a valve-train noise due to larger clearances when cold, I also asked him if it could also be piston slap but he denied this (makes sense - perfect coat skirting compared to the EJ). This valvetrain clearance explanation might have been believable if the car always did it when it was new or during the first winter, but not when it started happening suddenly.

It didn't seem like he believed this explanation the way he said it, because his "shop foreman" told him so.

Perhaps you could be right and this noise is within the scope of normal and it is a characteristic the FA20DIT aging but its awfully loud in cold weather.
Maybe cold soak of the HPFP?

Given that it is a new noise on a car I have owned for 50,000km, two other cars I know from new dont have it and Subaru's acknowledgement of the noise, I'm quite certain that something is going on.

Only a grounded technical explanation of why will be satisfactory.

I appreciate you responding to my post.
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