Ac vibration and aound when starting car and lwtting it just idle? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Frs32907 · 07-12-2014, 06:53 PM

I posted a thread earlier please disregard it. Issue is when i start the car up and have ac button on and xold air the car will make a vibration and loud noise. Turn it off it goes away. Always stops with ac on after intial driving of the car. Any clues to what this may be. I find it odd only happens on cold start and idling at first but then goes away. I would appreciate any help on this

Yamajee · 07-12-2014, 08:02 PM

If you mean rattling then try pressing on the clutch pedal when it's a cold start then see if it goes away, if it does then it's normal, the clutch usually makes most of the noise at cold startups other than the engine.

Frs32907 · 07-12-2014, 09:59 PM

Nope doesnt matter if clutch is engaged or not. It is directly related to the max ac button being turned on at start up and idle. Its almost like a shaking

ntron1 · 07-13-2014, 07:32 AM

Here is the TSB on this.

Frs32907 · 07-15-2014, 09:18 AM

Bot sure thats the issue..

nos145 · 07-16-2014, 03:34 PM

it dips bad w AC on, the tsb helps a lot but doesnt alleviate the issue completely.

also, they literally just dump more gas in the chambers.

Frs32907 · 07-16-2014, 03:53 PM

The rpms dont dip i have the lasted ecutek update. Basically it sounds like a thump that goes away once you drive and then stop again.

07-12-2014, 06:53 PM	#1
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Ac vibration and aound when starting car and lwtting it just idle? I posted a thread earlier please disregard it. Issue is when i start the car up and have ac button on and xold air the car will make a vibration and loud noise. Turn it off it goes away. Always stops with ac on after intial driving of the car. Any clues to what this may be. I find it odd only happens on cold start and idling at first but then goes away. I would appreciate any help on this

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07-12-2014, 08:02 PM	#2
Yamajee Senior Member Join Date: May 2013 Drives: Rocket Bunny'd GT86 Location: Dubai Posts: 556 Thanks: 68 Thanked 144 Times in 100 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	If you mean rattling then try pressing on the clutch pedal when it's a cold start then see if it goes away, if it does then it's normal, the clutch usually makes most of the noise at cold startups other than the engine.

07-12-2014, 09:59 PM	#3
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Nope doesnt matter if clutch is engaged or not. It is directly related to the max ac button being turned on at start up and idle. Its almost like a shaking

07-15-2014, 09:18 AM	#5
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Bot sure thats the issue..

07-16-2014, 03:34 PM	#6
nos145 Cognite Join Date: Oct 2011 Drives: 2013 Whiteout FRS Location: Toronto, Canada Posts: 245 Thanks: 121 Thanked 57 Times in 52 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	it dips bad w AC on, the tsb helps a lot but doesnt alleviate the issue completely. also, they literally just dump more gas in the chambers.

07-16-2014, 03:53 PM	#7
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The rpms dont dip i have the lasted ecutek update. Basically it sounds like a thump that goes away once you drive and then stop again.

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