Bubbling/knocking (but not liquid) sound aside from chirping - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mike_ekim1024 · 03-27-2013, 02:26 PM

After the chirping started, I started using Lucas ethanol fuel conditioner:
http://www.jazzmotorsports.com/lucas...FRCmPAodqQcACg

But after a few fill-up, I notice this bubbly/boggy/diesel sound. I searched through the threads.. I can hear it in the cabin the most prominent, and not so much under the hood. Fuel pump?

Thanks!
Mike

Chimpo · 03-27-2013, 02:50 PM

So you've used this conditioner once and this noise immediately started, or you've used it multiple times and this noise randomly started?

stevemp5 · 03-27-2013, 03:04 PM

I have the same sound in my cabin ! I dont no where the sound coming.....

Sigh-on-Rice · 03-27-2013, 04:19 PM

I have the same noise and uploaded a video of that noise too.

White64Goat · 03-27-2013, 04:31 PM

Sound generator tube noise??

EL_to_TBD · 03-27-2013, 06:33 PM

As Sigh-on-Rice mentioned, it sounds exactly like this:

http://www.ft86club.com/forums/showthread.php?t=23845

BRZnut · 03-27-2013, 10:28 PM

Quote:

Originally Posted by mike_ekim1024

After the chirping started, I started using Lucas ethanol fuel conditioner:
http://www.jazzmotorsports.com/lucas...FRCmPAodqQcACg

But after a few fill-up, I notice this bubbly/boggy/diesel sound. I searched through the threads.. I can hear it in the cabin the most prominent, and not so much under the hood. Fuel pump?

Thanks!
Mike

Sounds like a car from the 1960s with 100K miles.

thatWESguy · 03-28-2013, 02:17 PM

mine just started doing this last weekend, at about 10.5k. It's intermittent. My girlfriend has started calling my car the bubble car because of the noise...definitely not a manly way for your car to be described lol

mike_ekim1024 · 03-28-2013, 02:31 PM

Quote:

Originally Posted by thatWESguy

mine just started doing this last weekend, at about 10.5k. It's intermittent. My girlfriend has started calling my car the bubble car because of the noise...definitely not a manly way for your car to be described lol

It only happens when the engine is warm and at idle, similar to the chirps. I may take it in for a checkup and see what they say. It's sounding like me using the ethanol treatment isn't a cause now.

Mike

White64Goat · 03-28-2013, 04:11 PM

Have you tried capping the sound generator tube yet? Might be as simple as that.

mike_ekim1024 · 03-28-2013, 04:26 PM

Quote:

Originally Posted by White64Goat

Have you tried capping the sound generator tube yet? Might be as simple as that.

I just ordered a cold air intake (the Takeda), so when I put that in next week I'll see what happens. Thanks for everyone's help!

Mike

mike_ekim1024 · 04-06-2013, 01:08 AM

Quote:

Originally Posted by White64Goat

Sound generator tube noise??

You know.. i just installed an intake today and noticed that the round generator thing can touch near the intake.. its mounted with bushings or something and is very flexible. I havent removed that part yet.. i might take it out or put sticky foam under it and see what happens.

Hanakuso · 04-06-2013, 01:54 AM

Does it kind of sound like something is loose? Like plastic? I thought my valve cover was tapping but it wasn't. Haven't found the issue yet

enivid · 04-06-2013, 04:14 PM

I think that is the same sound mine makes which has been happening for as long as I can remember. Randomly can hear it after getting off the freeway after a 30 min trip. I thought it was normal after reading this thread: http://www.ft86club.com/forums/showthread.php?t=14274

03-27-2013, 06:33 PM	#6
EL_to_TBD EL_to_FR-S! Join Date: Mar 2013 Drives: Scion FR-S Location: Ontario, Canada Posts: 46 Thanks: 15 Thanked 9 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	As Sigh-on-Rice mentioned, it sounds exactly like this: http://www.ft86club.com/forums/showthread.php?t=23845

03-28-2013, 02:17 PM	#8
thatWESguy Power Ranger Join Date: Jul 2012 Drives: 86 Location: SoCal Posts: 204 Thanks: 105 Thanked 66 Times in 39 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	mine just started doing this last weekend, at about 10.5k. It's intermittent. My girlfriend has started calling my car the bubble car because of the noise...definitely not a manly way for your car to be described lol __________________ Autofashion \| FIVEaxis \| Enkei

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03-27-2013, 02:50 PM	#2
Chimpo Senior Member Join Date: Sep 2012 Drives: '15 STi Ltd Location: Probably a location near you! Posts: 297 Thanks: 37 Thanked 149 Times in 61 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	So you've used this conditioner once and this noise immediately started, or you've used it multiple times and this noise randomly started?

03-27-2013, 03:04 PM	#3
stevemp5 Senior Member Join Date: Jan 2013 Drives: scion fr-s Location: montreal Posts: 217 Thanks: 89 Thanked 148 Times in 77 Posts Mentioned: 4 Post(s) Tagged: 1 Thread(s)	I have the same sound in my cabin ! I dont no where the sound coming.....

03-27-2013, 04:31 PM	#5
White64Goat Senior Member Join Date: Jun 2012 Drives: 13 BRZ CBS LTD MT, 02 WRX Location: Fred. Co. Md. Posts: 2,346 Thanks: 65 Thanked 1,111 Times in 627 Posts Mentioned: 19 Post(s) Tagged: 1 Thread(s)	Sound generator tube noise??

03-28-2013, 04:11 PM	#10
White64Goat Senior Member Join Date: Jun 2012 Drives: 13 BRZ CBS LTD MT, 02 WRX Location: Fred. Co. Md. Posts: 2,346 Thanks: 65 Thanked 1,111 Times in 627 Posts Mentioned: 19 Post(s) Tagged: 1 Thread(s)	Have you tried capping the sound generator tube yet? Might be as simple as that.

04-06-2013, 01:54 AM	#13
Hanakuso Senior Member Join Date: Apr 2012 Drives: FR-S Location: California Posts: 1,956 Thanks: 294 Thanked 673 Times in 390 Posts Mentioned: 11 Post(s) Tagged: 2 Thread(s)	Does it kind of sound like something is loose? Like plastic? I thought my valve cover was tapping but it wasn't. Haven't found the issue yet

04-06-2013, 04:14 PM	#14
enivid Senior Member Join Date: Aug 2012 Drives: WRB JR BRZED Location: Farmington Utah Posts: 445 Thanks: 6 Thanked 218 Times in 133 Posts Mentioned: 17 Post(s) Tagged: 0 Thread(s)	I think that is the same sound mine makes which has been happening for as long as I can remember. Randomly can hear it after getting off the freeway after a 30 min trip. I thought it was normal after reading this thread: http://www.ft86club.com/forums/showthread.php?t=14274

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