Toyota Sienna Noises, Rattles, and Squeaks

45 messages, Last post on Aug 15, 2009 at 2:45 PM

You are in the Toyota Sienna Forum. Your Host is Karens

What is this discussion about? Toyota Sienna, Van

Outline

Messages Page 2 of 5: 1; 2; 3; 4; 5; Prev; Next; Last

#6 of 45: Re: 2007 sienna - loud hum noise when accelerating [hause7] by allez; Nov 01, 2007 (6:39 pm)

Replying to: hause7 (Oct 31, 2007 9:17 pm)

Could one of you guys shoot a 0-60 video of your 07 Sienna? i have one on youtube of my 04 Sienna, but wanna see the new 07's power. Can someone please do one?

Sorry, not me. Plan to keep my car a long time . . .

#7 of 45: thanks by hbandurski; Nov 01, 2007 (9:26 pm)

the noise is making me crazy... it's a minivan - it should be quite so kids can sleep - just like in the commercial

but on a serious note I am going to test drive new siennas to see if they have it too.

If there is anyone else that knows more info about this noise, please share

#8 of 45: Re: 2007 sienna - loud hum noise when accelerating [hbandurski] by anusha; Dec 11, 2007 (11:00 am)

Replying to: hbandurski (Oct 31, 2007 5:30 am)

I have the same noise on my Sienna LE and its becoming unbearable.(loud noise at three specific rpm’s and it's similar noise to engine struggling for power on an incline, worst is between 50 to 60 mph) I can assure you its NOT the lack of power here, as I am the only one in the minivan, with 3.5liter engine. It’s some kind of resonating from the engine. If I back off or accelerate form the resonating speed the noise goes away. If I stay at the speed the noise becomes louder and louder - never seen this before in my life and I have been driving for 15 years.

I have taken it back to the dealer a number of times. The technicians have all confirmed the noise is excessive and have tried the following:
Tightened air intake assy
Changed the Exhaust system
Replaced the Air intake assy
Loosened all engine mounts and tried to adjust engine in cradle

All the above DID NOT resolves the problem, so they reported to SE Toyota for their technical specialist to investigate.
He arrived and confirmed noise was EXESIVE and I was informed that he was going to file with TOYOTA ENGINEERING and that there is NO fix currently available. He would NOT give me the reported reference number to Toyota Engineering.

Since then I have spoken to Toyota and raised a Case number so I can update on the problem. But after few days they have contacted me and said there is NOTHING WRONG WITH SIENNA and that the noise inherent. I was NOT happy with the feedback and they have asked me to take up the dispute settlement program
I am disgusted with the feedback as four Toyota technicians have all confirmed the noise is excessive (They would not be happy with this excessive noise in their car)

I am not sure where to go from here!!!!! I wanted to work with them but they have washed their hands

#9 of 45: this is not good by hbandurski; Dec 11, 2007 (11:30 am)

Hi Anusha,
Thanks for your message. Since my original post I took it to the dealer and they said nothing is wrong with that noise, they said all of them do that.
I didn't have time to go for a test drive, but few days later I did take one of their new cars and noise was not there.

So you are right, they are trying to cover things up here but I am surprised more people don't have this problem. It is really bad noise, and clearly something is wrong with it - i have a feeling that by the time it gets to 60,000 miles, the van will be a junk.

I will now take this officially to the dealer and will try to update you - if you hear anything from them as well, please let me know.

By the way, I am in Toronto, Ontario. What about you?

siennami (Dec 17, 2007 6:44 pm)
lubang1 (May 26, 2008 4:40 pm)

#10 of 45: HEADLIGHTS water vapor/condensation by lweeks; Dec 12, 2007 (11:04 am)

My 04 Sienna has water condensation in right headlight I removed the bulbs & blasted with hair dryer for about 45 min., but it came back during !st rainfall.Dealer wants $600.00 to replace Any solutions out there? Lloyd

ateixeira (Dec 12, 2007 11:20 am)

#11 of 45: Re: HEADLIGHTS water vapor/condensation [lweeks] by ateixeira; Dec 12, 2007 (11:20 am)

Replying to: lweeks (Dec 12, 2007 11:04 am)

Must be a seal. Did you try to seal it up with silicone or something? Be very careful not to get any on the transparent areas, of course.

#12 of 45: Re: this is not good [hbandurski] by siennami; Dec 17, 2007 (6:44 pm)

Replying to: hbandurski (Dec 11, 2007 11:30 am)

First of all, let me say that I am sorry that you're having so much trouble with your vehicle. One thing I noticed when I test-drove this 2GR Sienna (not a 1998-2006) is that it is a NOISY little booger! In fact that is the first thing I noticed, as I drove a 2000 Sienna for three + years and never noticed that much engine sound. So, I am willing to guess that it's normal, unfortunately. I say this because not only did I test-drive one, but the one I currently drive is from a totally different dealership, and the engine sounds exactly the same. I am the only one who rides in or drives the car, so I've pretty much gotten used to it, along with a little hesitation on the turns. To me it's a trade off for a bigger engine. I can put up with the noise for that. 'Course, now I do like my country music up loud, too, so that might make a difference!

I'm not trying to make light of your situation; I really enjoy driving the Silver Shadow, so of course I wish that everyone else's experience would be as positive as mine!

Take care,

#13 of 45: thanks by hbandurski; Dec 17, 2007 (6:58 pm)

Hey,
Thanks very much for your message. I guess we will have to get used to it as well, but what bothers me is that this noise is only happening at certain speed and certain rpm - it's just not right.

Thanks

#14 of 45: 2GR vs. 3MZ by ateixeira; Dec 19, 2007 (8:22 am)

The 2GR V6 uses a timing chain, so it is indeed noiser than the 3.3l V6 predecessor (called 3MZ). Fair enough to get 266hp instead of 215hp.

However, in Car & Driver tests, Sienna was still the 2nd most quiet van at cruising speeds.

Toyota added sound insulation to the firewall and under the doors to compensate somewhat for the timing chains.

Timing belts have a change interval, chains don't, so the 2GR is also lower maintenance.

Here's a pic of the extra insulation from Toyota.

rclonch (Dec 21, 2007 12:20 pm)
- ateixeira (Dec 26, 2007 12:16 pm)
  - siennami (Dec 26, 2007 6:10 pm)

New Sound Insulation.JPG
364x431 (24kb)

#15 of 45: i am not trying to be difficult, but... by hbandurski; Dec 19, 2007 (9:32 am)

(thank you for the explanation, it looks like you know a lot about these cars, are you a mechanic?)

in my mind these changes would have nothing to do with why there is _NO_ noise when driving 40 km with 2200 rpm vs driving 80 km with 2200 rpm with a weird NOISE.

And most importantly, why this is not happening on all 2007 Sienna LE's - just very few.