vibration in prius almost bass sound system like

priuswv · 07-08-2009, 10:28 PM

Hello all,
My prius started making a weird noise today. There are no check engine lights, or anything lit up on the dash, or anything out of the ordinary. The engine starts and there's this horrendous vibration all over the car. It sounds exactly like a subwoofer in the vehicle. Its so bad that the rear view mirror is vibrating. It only does this at low throttle response. If I floor it, it goes away. If I hold the brake and hit the throttle i can get it to keep doing it. I searched, but the only thing close to this was in very cold weather, and don't believe this is my problem as it was in the upper 80's today. Any help you could provide would be greatly appreciated.
Thank you for your time,
John

Patrick Wong · 07-09-2009, 01:05 AM

Sounds like a dealer visit is warranted.

If you feel like experimenting, remove the negative 12V battery terminal cable where it attaches to the body, and leave the battery disconnected for five minutes. Then reconnect and see if that helps.

The idea is to give all of the various ECUs a chance to reset. Maybe the hybrid vehicle ECU is being weird and MG1 is fighting the engine, so that the engine cannot idle normally.

morpheusx · 07-09-2009, 08:15 AM

Another question was there any maintenance done on your car recently. (even if it seems unrelated)

The only other possibility I can think of is maybe you are driving with a rear window open, without the front window on the same side being opened also they sound like a helicopter is about to land on your car.

Bob64 · 07-10-2009, 12:17 PM

Is it making the vibration while the car is stopped?

Have you checked the oil level?

priuswv · 07-10-2009, 06:28 PM

All of the windows are up. Oil level is good. The next day it stopped. Can not recreate the noise now. The other night I could hold the break down, hit the gas (to make the engine start)without the vehicle in motion and it would start. The noise that is. I have an appointment monday with the dealership. Was hoping someone might know something I might be able to do myself and avoid the dealership if at all possible. Thanks for everyones input.

V8Cobrakid · 07-10-2009, 06:34 PM

how odd... the only time i had something similar to this was when i had a spark plug failure... your problem sounds different though... and "new"..

lenjack · 07-14-2009, 08:24 PM

Loose or damaged exhaust system hanger?

07-08-2009, 10:28 PM	#1
priuswv Junior Member Join Date: Jul 2009 Location: wv Posts: 2 My Car: 2006 Prius Model: N/A Package: #6 Touring Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	vibration in prius almost bass sound system like Hello all, My prius started making a weird noise today. There are no check engine lights, or anything lit up on the dash, or anything out of the ordinary. The engine starts and there's this horrendous vibration all over the car. It sounds exactly like a subwoofer in the vehicle. Its so bad that the rear view mirror is vibrating. It only does this at low throttle response. If I floor it, it goes away. If I hold the brake and hit the throttle i can get it to keep doing it. I searched, but the only thing close to this was in very cold weather, and don't believe this is my problem as it was in the upper 80's today. Any help you could provide would be greatly appreciated. Thank you for your time, John

07-09-2009, 01:05 AM	#2
Patrick Wong DIY Enthusiast Join Date: Mar 2008 Location: Green Valley, AZ Posts: 4,042 My Car: 2004 Prius Model: N/A Package: #9 Thanks: 21 Thanked 211 Times in 182 Posts Friends: 44	Re: vibration in prius almost bass sound system like Sounds like a dealer visit is warranted. If you feel like experimenting, remove the negative 12V battery terminal cable where it attaches to the body, and leave the battery disconnected for five minutes. Then reconnect and see if that helps. The idea is to give all of the various ECUs a chance to reset. Maybe the hybrid vehicle ECU is being weird and MG1 is fighting the engine, so that the engine cannot idle normally.

07-09-2009, 08:15 AM	#3
morpheusx Professor Chaos Join Date: Mar 2007 Location: Akron, OH Posts: 1,505 My Car: 2007 Prius Model: Package: #2 Thanks: 7 Thanked 38 Times in 24 Posts Friends: 3	Re: vibration in prius almost bass sound system like Another question was there any maintenance done on your car recently. (even if it seems unrelated) The only other possibility I can think of is maybe you are driving with a rear window open, without the front window on the same side being opened also they sound like a helicopter is about to land on your car.

07-10-2009, 12:17 PM	#4
Bob64 Sapphire of the Blue Sky Join Date: Apr 2007 Location: Virginia Posts: 1,132 My Car: 2007 Prius Model: N/A Package: #2 Thanks: 3 Thanked 9 Times in 9 Posts Friends: 0	Re: vibration in prius almost bass sound system like Is it making the vibration while the car is stopped? Have you checked the oil level?

07-10-2009, 06:28 PM	#5
priuswv Junior Member Join Date: Jul 2009 Location: wv Posts: 2 My Car: 2006 Prius Model: N/A Package: #6 Touring Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Re: vibration in prius almost bass sound system like All of the windows are up. Oil level is good. The next day it stopped. Can not recreate the noise now. The other night I could hold the break down, hit the gas (to make the engine start)without the vehicle in motion and it would start. The noise that is. I have an appointment monday with the dealership. Was hoping someone might know something I might be able to do myself and avoid the dealership if at all possible. Thanks for everyones input.

07-10-2009, 06:34 PM	#6
V8Cobrakid Senior Member Join Date: Jun 2004 Location: hell Posts: 2,894 My Car: 2004 Prius Model: N/A Package: #9 Thanks: 9 Thanked 18 Times in 18 Posts Friends: 5	Re: vibration in prius almost bass sound system like how odd... the only time i had something similar to this was when i had a spark plug failure... your problem sounds different though... and "new"..

07-14-2009, 08:24 PM	#7
lenjack Senior Member Join Date: Dec 2006 Location: Pennsylvania USA Posts: 455 My Car: 2010 Prius Model: III Package: No Package Thanks: 0 Thanked 7 Times in 7 Posts Friends: 0	Re: vibration in prius almost bass sound system like Loose or damaged exhaust system hanger?

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