Last post on Apr 29, 2013 at 10:44 AM
You are in the Toyota Sienna
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Toyota Sienna, Van
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#1 of 108 2004 XLE Spark knock
Nov 13, 2006 (7:54 am)
I have a 2004 XLE with approx 40,000 miles and I have a very persistent spark knock that is anoying. Does anyone know how to remedy this? I f I remember you used to be able to retard the timing just a touch and eliminate this one some vehicles. Would this work on this one and if so how can I go about doing it?
I have also noticed that these vans eat tires. I'm on my second set and they are already wearing unevenly (after alignment) and making the dreaded wop wop wop noise ( yes I rotate them and keep them inflated firmly).
Thanks for your help.
#2 of 108 Re: 2004 XLE Spark knock [new2diesel]
Nov 13, 2006 (11:31 am)
I have an '04 with similar mileage, but have not experienced your problems - not with knocking and not with tires. We are on our 2nd set.
In a way, I can understand if these vehicles go through tires quicker than other vehicles b/c of friction. Just like sportscar tires wear out more quickly b/c they are made to grip the road and, thus, increase friction, the weight of the minivans should give more friction to the tires than other vehicles.
Good luck with your issues.
#3 of 108 Engine Vibration
Jan 03, 2007 (11:32 pm)
My 2000 Sienna XLE has 84K miles on the odometer. I took it in for the "big" service. Now it has harsh engine vibration at idle while the car is in gear (i.e. stopped in traffic). The engine is also noticeably louder when it shifts into OD at freeway speeds (55-65 MPH). Finally, the gas mileage has dropped about 2 mpg. My dealer can't seem to figure out what the problem is. They changed two engine mounts which isolates the vibation somewhat but there is still engine vibration.
Has anyone experienced this problem? Can someone offer some advice? I like my Sienna but the vibration is starting to get on my nerves.
#4 of 108 2006 LE Surpentine Belt
Jan 04, 2007 (10:38 am)
I was driving someone else's 2006 LE with 25K miles on it. When I start it, the sound comes like slippage of serpentine belt. Then it goes away. Is this normal?
Second, Service RQD was on constantly. He said, it has to be reset everytime after oil change is due. Is this normal also.
#5 of 108 Re: 2004 XLE Spark knock [new2diesel]
Jan 10, 2007 (9:02 pm)
There is a TSB on the nocking I took mines to the dealer
and got fix at no charge.
#6 of 108 2002 Sienna LE - ECM Replacement
Jan 19, 2007 (12:35 pm)
I had recently had a check engine light diagnosed as a faulty ECM. This module is very expensive ($1700)and I was looking for a replacement.
Any ideas here?
What impact is there for not replacing this module as the car is running okay?
#7 of 108 2001 Toyota Sienna noise after parking?
Jan 25, 2007 (12:25 am)
Every time I get into my Sienna to go somewhere, after a few seconds it will make a weird noise that I can feel through the pedal for about two seconds. It seems to be speed triggered, not time triggered, and it takes a little while, it's not immediate. It also doesn't seem to be related to whether I back out or pull forward, or have anything to do with whether I use the brakes or not.
It reminds me of those old toy cars that had a little plastic strip that touched the gear to make a noise. After it does the noise (EVERY time I go somewhere), it won't do it again until I turn the car off and go somewhere else. I haven't tried putting it back in park after it does the noise to see if it does it again, but I am completely confused as to what it could be. Any ideas? I am hoping it's not something expensive in the transmission.
#8 of 108 Re: 2001 Toyota Sienna noise after parking? [nhzero]
Jan 25, 2007 (4:52 am)
This sounds like, your ABS braking system "Self Test". Most cars exhibit this behavior today. Some more loudly than others. Don't worry, no problems
#9 of 108 Re: 2004 XLE Spark knock [jaccord]
Feb 05, 2007 (10:13 am)
Do you know the TSB number so I can refer to it? Also how long did the repair take and did it work?
#10 of 108 Re: 2001 Toyota Sienna noise after parking? [nhzero]
Feb 05, 2007 (12:15 pm)
Anti-Lock Brakes it is! It is really noticeable in the Sienna. My last vehicle, a 2005 Tacoma was the first vehicle I had with anti-lock. It made a whoosh or shwoosh sound when first started up and you took off in the driveway. About 5-8 seconds after you started moving. Does it in reverse, too.
We had snow a while back and I had some kids in the car who asked me to go sideways on the ice. You should have heard the anti-lock brakes then. Sounded like a little motor running when the tires slid when I applied the brakes.