Toyota - Sienna :: 2004 - Heating System / Passenger Side Vent Is Very Cold

When I turn on the heat, I only get hot air through the drivers side vent,the passenger side vent is very cold. I had it in to be worked on (at a Non-Toyota shop)and they tore it completely apart and could not diagnose the problem. It affects the entire system,meaning the air going to defrost is also hot on the drivers side and cold on the passenger side.

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Toyota - Sienna :: Shaking At Around 30 Mph And Higher

My Sienna's Got the Shakes! At around 30mph and higher, my 2004 Toyota Sienna starts with a constant vibration coming from the front end. It gets faster as the speed increases and it only happens when I'm accelerating... when I take my foot off the gas it goes away. I unknowingly bought the car with this problem, and I'm trying to decide if it's worth it to fix it or sell as is, but I'm getting stumped about the cause. A couple mechanics thought it is from bad motor mounts. I replaced the front mount because it was the easiest to access and could clearly be seen as cracked in the rubber. However, it didn't seem to change the vibration at all, and my mechanic then wasn't convinced that spending money on trying to replace the other mounts was going to do the trick. Another person took a look at it and didn't think it was the motor mounts either, but thought it was something in the drive train which would need to be checked out by the dealer which would be fairly costly. I would love to get it fixed because the rest of the minivan is in good condition.

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Toyota - Sienna :: The Back Rear Get Only Cold Air

I bought a brand new 2005 Toyota Sienna and since then have nevered got any warm air to come through the rear vents. Only the front passenger and driver gets the heated air. The back rear get only cold air.

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Toyota - Sienna :: 2006 - Airbag Light On

I looked up the service history of a Sienna 2006 (have been planing to buy the minivan) and found that it had a few incidents with AIR BAG ON. When I initially searched for 2006 Sienna I mostly hit the door latch problems. Looks like the airbag issue has been reported on several blogs and there is no recall yet on this issue.

My question is, if I buy extended warranty, whether this would cover the repair cost or not. Or, should I stay away from 2006 Siennas? If so, which models/years should I avoid?

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Sienna :: 2002 Toyota Shutting Off When Stopping

My Toyota Sienna 2002 van has been stalling when I stop off and on for about 2 weeks. Most times it starts up again and continues to run. I can go days and it doesn't happen then yesterday it happened 7 times in the course of 10 minutes. I've had it connected to a computer diagnostic system three times, couldn't find any error messages.

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Toyota - Sienna :: 2010 - Alarm Keeps Going Off Randomly

My 2010 Toyota Sienna alarm keeps going off randomly...there is no method to the madness. It happens after it's been running or not. It happens at all hours of the day and night. It can happen four times in a row and then not for days on end. It's literally driving me insane. I can stop it by pressing the unlock button on the remote. But it will often -- though not always -- do it a few more times after that. So, I open all the doors/trunk remotely and that usually puts an end to it for that period...but not always. But it always happens again...whether it's the next day or seven days later. The mechanic says they need to keep the car and hear/see it happen...but that means leaving my car with them for days on end, which I simply can't afford to do.

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Toyota - Sienna :: CEL Comes On Occasionally After Driving For 50 Miles Or So

My wife's 2005 Sienna is a very reliable vehicle. But occasionally when I drive it a fair distance--50 miles or so, but not always that far--the check engine light will come on. (It's something vague about emissions, but isn't it always?) And then a day or so after my wife drives it again, the light goes off. The van seems to run fine at all times. So is it something I'm doing when I drive it?

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Toyota - Sienna :: ABS And Tire Light Comes On / Goes Out When Reboot The Car

Well, a serious problem may be pending on my 2002 Sienna. I get a lot of flats, and usually lose a tire on average each year, due to lots of junk on the roads and streets. So, in the last couple weeks, sometimes the tire light comes on, and I assume I have another leak. But, then it has gone out again after a while and the pressure is okay.

Yesterday, moderate temperatures, I drove only 3 miles or so, to visit friends. The car sat an hour or more. When I started it, the ABS light was blinking and the tire light was on.

I stopped the car, and re-booted, that is, turned it off, and started it again. Lights were okay. Today, I started it, and the ABS and tire lights were on, and not blinking. I re-booted the car, and they were okay.

Three things come to mind:

- Computer
- Bad or intermittent connections somewhere in the light system. The fact a re-boot fixes it tends to preclude this, but with electronics, there is no such thing as 100% sure anything.
- Ambient conditions. I normally park at the end of the house, but workers first put a dump truck load of sand there. Then, they moved in a couple pickups of laja (flagstone) with pieces from very small to maybe 150 pounds each piece.

So, I have parked along the house, and there is a roof drain which drains 500 square feet or more, with a 13 foot drop. I park with the driver's door maybe 3 to five feet from the place it hits. And, it has been raining lightly for the last couple weeks, and heavily the last three days. No water in the car body, but who knows what happens underneath.

I stopped typing and moved enough stones to park there again, and will be telling the workers they need to keep my parking place open for me.

I know we used to have problems with our electronics in private airplanes, and the fix was to install a liner inside the electronics access door. Electronics does not work well when submerged. I also checked with my new scanner, and no DTC; and no history at all.

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Toyota - Sienna :: 2004 - Air Conditioner Only Blow Hot Air

I have an 8 year old 2004 Toyota Sienna LE minivan. This past weekend I tried running the air conditioner when the temperature was in the low 80's (F) outside. Unfortunately, the AC only blew hot air, even though I drove a pretty long distance with the AC on.

I think the refrigerant has leaked out and is depleted. Whether or not I should attempt to recharge the AC by myself with my neighbor's assistance (he has all of the gear for recharging the refrigerant) or if this is a job that is better left to a professional.

Also, if I do attempt the job by myself, would it be better to try and seal the leaks with a dedicated sealant first, or should I use the canned refrigerant that also contains some kind of sealant?

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Toyota - Sienna :: 1998 - Shuts Off While Driving

I have a 1998 toyota sienna with 170k. Yesterday when I was driving on the highway, the car turned completely off, and then after about 2 seconds started back up again. When it turned off, the electronics turned off along with the engine. I had no brake power, lost power steering, and couldn't even turn on the hazards. It did it 2 more times before I got home.

The second time, I noticed that it did this when I turned on the headlights. This time the engine stayed on, but the speedometer and tachometer went nuts (bouncing up and down) and all of the console lights turned on and off. When I turned the headlights off, everything went ok. When I got home and turned the car off, it went dead. Haven't tried starting it today, but the battery light went on dimly when I put the key in.

Took a quick look at the battery. The terminals are corroded. I'm going to clean them today, but I'm feeling that it won't do much. The battery light didn't turn on, so I'm thinking that the alternator is ok (am I wrong?). Since the electronics and brakes died when the engine died, I'm thinking it's not the distributor coil. Is my ecu fried?

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Toyota - Sienna :: 2007 - Brakes Suddenly Went Off?

The brakes on my 2007 Toyota Sienna suddenly went soft. The mechanic first replaced the rear pads, which needed to be done anyway, and when that didn't fix the problem he replaced the master cylinder. The brakes are still very soft. He has bled the system several times to get rid of possible air in the line, but that hasn't fixed the problem.

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Toyota - Sienna :: 2009 Model Shows MIL But No Code?

My 2009 Sienna has turned on the Malfunction Indicator Light but my OBD-II scanner shows "no codes". How can that be? How can I diagnose the problem?

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Toyota - Sienna :: Unintended Acceleration - Vehicle Went Up Over The Curb

I've read quite a few instances in this forum of unintended acceleration in the Toyota Sienna. Well it happened to me this morning. I was pulling into my parking spot at work with my foot lightly on the brake, going about 5 or 10 mph when the vehicle suddenly accelerated as if someone had floored the accelerator. The vehicle went up over the curb and into the side of the building. When I told the policeman what had happened, he said that isn't possible. I told him it was possible because it just happened to me. I had it towed to the dealership, called my insurance company and Toyota to make a report of the incident. They will be sending someone out to check out the car, but I'm sure they won't say there is anything wrong with it. I'm sure it won't be impartial since they don't want to be held liable. I also made a complaint with the NHTSA. I am afraid to drive the car and will never buy a Toyota again.

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Toyota - Sienna :: Brake Pedal Goes To The Floor And Car Does Not Slow Down

My Sienna 2005 experience intermittent complete brake failure 3 times within 18,000 miles,the brake pedal goes to the floor and it does not slow down, so I coast until I stop. However, when I release the brake pedal and then reapply the brakes, it works fine. A non-Toyota mechanic thinks it's due to malfunction of ABS. The dealership is unable to finds error codes and brakes work fine when the Sienna is in their hands. I scared that the brakes will not work the next time I reapply the brakes.

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Toyota - Sienna :: Audio Screen Shift To GPS After 10-20 Seconds?

I have a Sienna Limited 2013. Ever since I press audio button on the player, it shows the music information. But after 10-20 seconds, the screen shifts to GPS. Is there any setup or button i should do to stall the screen on audio and mp3?

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Toyota - Sienna :: Car Making Whistling Noise When Go Into Reverse

I own a 2005 Sienna CE with about 100,100 miles. In the past couple of weeks, I noticed that when I go into reverse, the car makes a whistling noise. At first I thought it was when I press on the brakes but it appears to make the noise even when not braking. It does not do this all the time; only sometimes. It appears to do it more when reversing and going down a slope.

I tried googling this but couldn't find anything. Some people say the brakes which were all replaced a couple of months ago.

Not sure if it is related but the car also makes low chirping noise when driving about 40 miles per hour.

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Toyota - Sienna :: 2003 - Replacing CA Catalytic Converter

Chk engine light is on. Checked it at Advance Auto and indicated either cat or the O2 sensor (rear). So, I went to replace the O2 sensor and learned the hard way that you can't just unscrew the nut. I torqued off the stud to which the O2 sensor attaches. Muffler shop told me you need to heat up the stud/nut first to remove it. Oh well, lesson learned. So, I'm looking at replacing the pipe with the catalytic converter attached since I can't seem to fix the broken stud (or actually get the one I didn't break off). The problem is, my car is apparently a CA model and has the special cat on it. I live in VA. What sort of problems might I run into if I replaced the cat with a non-CA version? They are significantly less expensive. This is for a 2003 Toyota Siienna

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Toyota - Sienna :: 2006 - AC Noise When Clutch Engages

I have a 2006 Toyota Sienna with approx 64K miles. Recently, I am hearing a squealing noise when the AC clutch engages (AC is working fine and blows very cold air). When AC is off for when the clutch is not engaged - no noise at all..... I have been getting alot of different answers as to what it could be and it is very confusing.... to me - it sounds like a clutch issue and I have seen videos on how to take apart and see if it is a bearing or bad clutch. I did pull the belt and checked the pulley - it turns freely and there is no bearing movement. How I can go about getting it repaired without replacing the entire compressor and other expensive parts.

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Toyota - Sienna :: 2006 - Tire Wear On AWD Drive

Has an underlying problem to the tire wear on AWD drive 2006 Sienna's run flats been identified?

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