Engine rattling noise while idling - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

skogs · 05-24-2017, 05:10 AM

I noticed today that my GT86 makes this weird rattling noise when it is warm and idling.

It sounds exactly like in this youtube-clip:
[ame="https://www.youtube.com/watch?v=qIlHnd39iHU"]Scion FRS, Subaru BRZ, Toyota GT86 engine rattle noise after warmed up. - YouTube[/ame]

Has anyone here had that problem? The car is still under warranty, but i'm guessing they will try to snake their way out of it.

humfrz · 05-24-2017, 12:34 PM

Hi ya, skogs ....... well that don't sound like mine.

Back-in-the-day, if it had solid lifters, I would have said the a lifter is out of adjustment; if it had hydrolytic lifters, I would have said the a lifter is stuck.

Now, today ...... I'm never sure.

What power mods do you have..??

Did you car just start doing this .. ??

Are you sure it's not the HPFP doing its "cricket" thing .. ??

What's the last thing that you messed with under the hood..??

You may wish to try to isolate the source of the sound by using a stethoscope (or a long screwdriver with the handle up to your ear and the other end touching various suspect parts).

Come back.

humfrz

Ultramaroon · 05-24-2017, 02:00 PM

Is it an automatic?

skogs · 05-25-2017, 09:48 AM

The car is completely stock. Automatic.19k km on it. I just bought it the other day.

Maybe its normal? I just didnt expect it to sound like an old diesel. Could be HPFP, but i've heard that described as very high pitched.

Ultramaroon · 05-25-2017, 12:43 PM

Quote:

Originally Posted by skogs

The car is completely stock. Automatic.19k km on it. I just bought it the other day.

Maybe its normal? I just didnt expect it to sound like an old diesel. Could be HPFP, but i've heard that described as very high pitched.

The clip you linked is also an automatic with a failed vacuum pump coupling. It is driven by the rear end of the 1-3 intake camshaft (right side).

skogs · 05-26-2017, 03:50 AM

Could this affect shifting? The shifts are not exactly smooth.. jumps forward shifting up, and almost locking the wheels on certain downshifts. Typically in low rev low load condition. Feels like an amateur shifting in a manual.

Ultramaroon · 05-26-2017, 12:31 PM

No but get it fixed anyhow. Warranty.

strat61caster · 05-26-2017, 01:12 PM

To be clear, it's the 'slapping' sound that's the problem in that video, the ticky-tacky noise is normal.

Here's a few 'normal' engines.

[ame="https://www.youtube.com/watch?v=W2Lyud0XcNA"]2015 FRS idle chirping - YouTube[/ame]

[ame="https://www.youtube.com/watch?v=DF1_v-OfxWk"]GT86 rough idle and noisy pulley - YouTube[/ame]

[ame="https://www.youtube.com/watch?v=B8NgXU8rU-g"]Subaru BRZ High Pressure Fuel Pump Chirping Noise at Idle. - YouTube[/ame]

skogs · 05-27-2017, 12:28 PM

Oh, so that's the way it's supposed to sound. No worries then. Thx!

Ultramaroon · 05-27-2017, 01:22 PM

Quote:

Originally Posted by skogs

Oh, so that's the way it's supposed to sound. No worries then. Thx!

Wait. You don't have the actual sound from the clip that you linked?

FRS Justin · 05-27-2017, 01:24 PM

To me it sounds like a rocker arm issue but its hard to tell in the video. I would get a long metal bar and place it on the rocker cover and listen to it.

Ultramaroon · 05-27-2017, 01:35 PM

Quote:

Originally Posted by FRS Justin

To me it sounds like a rocker arm issue but its hard to tell in the video. I would get a long metal bar and place it on the rocker cover and listen to it.

They can be hard to differentiate. That clip was verified to be the pump IIRC.

Agreed. bar, screwdriver, stethoscope...

05-24-2017, 05:10 AM	#1
skogs Member Join Date: Apr 2017 Drives: GT86 2013 Location: Norway Posts: 55 Thanks: 13 Thanked 15 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Engine rattling noise while idling I noticed today that my GT86 makes this weird rattling noise when it is warm and idling. It sounds exactly like in this youtube-clip: [ame="https://www.youtube.com/watch?v=qIlHnd39iHU"]Scion FRS, Subaru BRZ, Toyota GT86 engine rattle noise after warmed up. - YouTube[/ame] Has anyone here had that problem? The car is still under warranty, but i'm guessing they will try to snake their way out of it.

05-24-2017, 02:00 PM	#3
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,395 Thanks: 53,053 Thanked 37,228 Times in 19,308 Posts Mentioned: 1118 Post(s) Tagged: 9 Thread(s)	Is it an automatic? __________________ service manuals

05-26-2017, 12:31 PM	#7
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,395 Thanks: 53,053 Thanked 37,228 Times in 19,308 Posts Mentioned: 1118 Post(s) Tagged: 9 Thread(s)	No but get it fixed anyhow. Warranty. __________________ service manuals

05-27-2017, 01:24 PM	#11
FRS Justin Senior Member Join Date: May 2014 Drives: 2013 Asphalt FRS Location: San Antonio Posts: 994 Thanks: 693 Thanked 695 Times in 417 Posts Mentioned: 22 Post(s) Tagged: 1 Thread(s)	To me it sounds like a rocker arm issue but its hard to tell in the video. I would get a long metal bar and place it on the rocker cover and listen to it. __________________ Instagram FT86PROJECT9S Facebook FT86PROJECT9S 710whp

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Odd noise when idling?	Terruko	Issues \| Warranty \| Recalls / TSB	29	10-16-2016 07:09 PM
Rattling noise	Eighty 6	Scion FR-S / Toyota 86 GT86 General Forum	4	06-07-2016 11:54 AM
Rattling Engine Noise (Video with sound)	mystic	Southern California	21	12-28-2013 04:11 AM
Rattling noise under the hood during engine braking at low RPM	Sigh-on-Rice	Engine, Exhaust, Transmission	60	07-28-2013 07:48 AM
Engine sputtering while idling with check engine light flashing, WTF	speedy racer	Scion FR-S / Toyota 86 GT86 General Forum	15	08-27-2012 06:50 AM

05-24-2017, 12:34 PM	#2
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 30,432 Thanks: 29,826 Thanked 32,845 Times in 16,844 Posts Mentioned: 715 Post(s) Tagged: 2 Thread(s)	Hi ya, skogs ....... well that don't sound like mine. Back-in-the-day, if it had solid lifters, I would have said the a lifter is out of adjustment; if it had hydrolytic lifters, I would have said the a lifter is stuck. Now, today ...... I'm never sure. What power mods do you have..?? Did you car just start doing this .. ?? Are you sure it's not the HPFP doing its "cricket" thing .. ?? What's the last thing that you messed with under the hood..?? You may wish to try to isolate the source of the sound by using a stethoscope (or a long screwdriver with the handle up to your ear and the other end touching various suspect parts). Come back. humfrz

05-25-2017, 09:48 AM	#4
skogs Member Join Date: Apr 2017 Drives: GT86 2013 Location: Norway Posts: 55 Thanks: 13 Thanked 15 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The car is completely stock. Automatic.19k km on it. I just bought it the other day. Maybe its normal? I just didnt expect it to sound like an old diesel. Could be HPFP, but i've heard that described as very high pitched.

05-26-2017, 03:50 AM	#6
skogs Member Join Date: Apr 2017 Drives: GT86 2013 Location: Norway Posts: 55 Thanks: 13 Thanked 15 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Could this affect shifting? The shifts are not exactly smooth.. jumps forward shifting up, and almost locking the wheels on certain downshifts. Typically in low rev low load condition. Feels like an amateur shifting in a manual.

05-27-2017, 12:28 PM	#9
skogs Member Join Date: Apr 2017 Drives: GT86 2013 Location: Norway Posts: 55 Thanks: 13 Thanked 15 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Oh, so that's the way it's supposed to sound. No worries then. Thx!

User Name		Remember Me?
Password