Last post on Jul 18, 2007 at 10:32 AM
You are in the Toyota Sienna
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Toyota Sienna, Van
#3506 of 3687 2001 Sienna XLE with rusting muffler
Mar 20, 2006 (4:28 am)
I also noticed the muffler has many small rusting spots after I noticed the rusting drops on my garage floor. I complained to toyota about it. They ignored me. It had less than 50,000 miles on it when I noticed it. I went to auto zone and bought some heat-resistant paint. I tried to clean it with sand paper and then painted with this ceramic heat-resistant paint. These small holes/spots have not busted yet at this time. I am just wondering anyone has noticed the same problem.
#3507 of 3687 Suspension Problems on a 2002 Sienna
Mar 20, 2006 (2:17 pm)
Have had to have both front arm suspension units replaced on our 2002 Sienna (88000 kms)Minivan due to the rubber bushes breaking away from the metal component arm. The dealer claims its due to driving over rough terrian but this has not happened. ANybody had experience with a problem like this? Seems like it could be a faulty part??
Photos of units at
#3508 of 3687 Re: Suspension Problems on a 2002 Sienna [bpendergast]
Mar 20, 2006 (2:43 pm)
Now that's timely.
Oh yeah I have experience with this.
Took my hitherto flawless '03 Sienna to a trusted independent shop to do a "k" service. It's at 46k miles -- 74,000 km -- so I figured we'd do the 30k "severe" schedule and all inspections.
Sure enough, I need new lower control arms left and right, for $144 each (dealer item), because the $10 rubber bushings have failed. They aren't available separately, of course.
My control arms aren't removed yet, but they appear to have failed in exactly the same way yours have; the mechanic showed me how you can push the arm up and down and the metal sleeve moves around the piece of rubber. Pretty stupid design.
I think the dealer is right on with his diagnosis; the part is not strong enough to withstand use in a 4,000+ lb minivan. I don't think you ruined the suspension over rough roads, 'cuz I know we didn't. It used to be my car before the wife took it over, and neither one of us particularly beats up on cars.
I'm gonna keep the old parts.
As a friend of mine said, "it's a Toyota, so you know there are 150,000 minivans driving around with the exact same problem. It's a car chassis trying to do a truck's job."
I think he's right; I think it's not the end of the world; I think that in a year or three, there will be a way to rebuild these because more and more will fail.
If I hadn't asked to check out a weird noise my wife mentioned, I doubt they would have found it. I bet someone will come up with a way to fix 'em cheaper, and then I'll have my original ones redone.
Thanks for your information and commiseration,
#3509 of 3687 Suspension Problems on a 2002 Sienna
Mar 20, 2006 (5:39 pm)
Thanks Mathias - You are the first to have the same problem I've seen -where are you located? So your dealer admitted it was a design problem?
#3510 of 3687 Re: Suspension Problems on a 2002 Sienna [bpendergast]
Mar 20, 2006 (6:02 pm)
I'm in MI.
Dealer? I took it to an indy I've been going to for years. And there's nothing to "admit", the darned things aren't supposed to fail... if it's a lousy design, they're all going to go bad early... if it's just a lousy part, it's just yours and mine.
Don't forget that minivans often don't get serviced all that well... mommy's too busy and all that. This failure isn't going to be found on a cursory inspection.
As far as "admitting" anything... admit hell -- the darned thing's out of warranty, it's on my nickel, lousy design or no.
I don't like it, but I accept it, and I certainly won't try to get any money out of either Toyota or the local dealership... I don't trust the mechanics there, so I never go and have no rapport.
The fact that my ATF was black after only 46k bothers me more than the stupid bushings. Maybe I should sell it; at least resale is stellar on these things.
#3511 of 3687 A/F sensor replacement
Mar 21, 2006 (6:24 am)
I see online that replacing these sensors is common for the Sienna, and other Toyota models as well.
Have they been covered under an emmissions or goodwill program yet? At $300+ a pop, these are becoming an expensive item to maintain on our 2000LE.
We've replaced the two sensors on the engine manifolds already, and now need to replace one again.
#3512 of 3687 Re: Glass scratches [paul6]
Mar 21, 2006 (11:50 am)
Same here brought to dealer prior to 36,000 and he looked confused. I knew that it was something wrong mechanically. All he told me was that sand got down there and scratched the glass in the exact same place as others said.
Denied the fact that this happened too all of the siennas I've seen. They never replaced my weather stripping or window. Just blew the sand out with air. The front wind shield also of low quality glass and scratches very easily. Also the passenger window motor died right after warrenty was up. I've seen this on other Siennas.
This an a few other things, will force me not to purchase another Toyota product.
Mar 21, 2006 (2:57 pm)
We had the scratched glass too - window was replaced - fortunately covered under warranty
#3514 of 3687 2004 Sienna with check engine light constantly on
Mar 21, 2006 (6:14 pm)
I bough a 2004 Sienna on June, 2003. Today my unit has 49500 miles. Last week my unit turns on the check engine light. When I went to the dealer, they told me that the computer was registering codes P0301, P0302, P0303, P0304, P0305 but the unit does not show any signal of malfunction. They reset the signal light, but 2 days after the signal turns on again. I return the unit to the dealer and after 5 days with the vehicle in the dealer they gave me back the van saying that they donít found any malfunctioning. Today (two days after) the light turns on again. Do you have any idea?
#3515 of 3687 Re: 2004 Sienna with check engine light constantly on [dmendez1]
Mar 22, 2006 (4:54 am)
maybe there is a TSB on it, for example i found this:
there may be another more recently issued TSB.
see if the VIN is in the expected range for this TSB.
even if not, this suggests the manufacturer had a problem with the coil packs produced and installed in a number of vehicles. your codes indicate misfiring (in every one but one cylinder? you sure you didn't omit code 0306?).
sounds like all they are doing for you is resetting the CEL (check engine light). are they going through all the diagnostic steps to deduce misfiring?
you could have an intermittent wiring problem to/from the coil pack or defective coil pack. then again, it might be something they aren't seeing because perhaps it is occuring when it is raining outside with moisture being kicked up into the engine compartment? ask if there is something they might do to rule out something that occurs as a result of excessive mosture (spray bottle test).
print out the TSB (all the pages of it), and bring it back to them.
hope it helps.