Toyota Sienna owners have reported 12 problems related to manifold/header/muffler/tail pipe (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota Sienna based on all problems reported for the Sienna.
The contact owns a 2008 Toyota Sienna. The contact stated that while driving 55 mph, smoke began to emit from the rear. The contact stopped the vehicle and noticed that a high pressure hose under the intake manifold was pierced and leaking oil. The vehicle was towed to an independent repair shop and was in the process of being evaluated. The vehicle was not repaired. The manufacturer was made aware of the failure and offered no assistance. The failure mileage was 40,105. Updated 4/2/12.
See all problems of the 2008 Toyota Sienna.
That was around 2012 new year time when I , my wife and my kid visited our friend at atlanta, GA. We drove our van on interstate highway I-75, in the middle of our trip, our van started shaking vigorously. I felt that was from engine, it forced me to stop on the side of I-75. After a while we restarted our van, we could only drive for < 65 miles/hour. Any acceleration resulted in vigorous shaking. After we came home I drove my van to an auto service center, and was checked. It turned out that 3 ignition coils, spark plugs, and manifold gasket had to be replaced. Yesterday (9/10/2015) the same problem happened again.
2009 Toyota Sienna. Consumer writes in regards to vehicle fire
the consumer's insurance company determined that oil leaked from a faulty valve and seal in the manifold cover. However, Toyota provided a different explanation as to how the vehicle caught on fire. They stated the fire was caused by spilled oil and overfilling of oil. Toyota stated they have a photo of the dip stick proving that the oil was overfilled, but refused to provide the picture.
See all problems of the 2009 Toyota Sienna.
Vehicle caught fire spontaneously during normal use. Fire started in the area of exhaust muffler and quickly spread into the cabin.
See all problems of the 2005 Toyota Sienna.
Coolant dripping under the muffler when the brand new van was driven 955 miles and the dealer still fixing it. This is the third time the van is in the dealer for the same problem and totoally they has spent 15 days. They said it was becasue something was wrong with the rear heater core.
Vehicle was blowing white smoke out, and when you removed the oil refill cap there was a gel type substance on it, the mechanic called it oil gel. Toyota knew about this and told consumer that they are not maintaining their auto, but with her vehicle this is not true.
See all problems of the 2002 Toyota Sienna.
Light blue smoke from tail pipe . Oil cap dark brown.
See all problems of the 1999 Toyota Sienna.
Had sludge in the engine. Engine lost oil and smoke coming out the tail pipe. They rebuilt my engine for free. Saying that I did not change oil frequent enough. I have proof and did change every 4-5000 miles but not with the Toyota dealership. My concern is that what did they change to make sure this doesn\\'t happen again. They could not promise me it wouldn\\'t even if I changed the oil every 3000 miles.
See all problems of the 1998 Toyota Sienna.
Fax fm george a. Stouffer (nc) request that Toyota cover the cost of a new engine for this 1998 Toyota Sienna due to an "oil gel" problem. White smoke had come from the tail pipe. The service dealer diagnosed that Toyota labeled an "oil gel problem" and told the consumer that the engine would be cleaned under warranty. The problem recurred and destroyed the engine. Toyota should be responsible for the payment under the same provisions as before. (they refused the request) the request for assistance was denied, because the manufacturer stated the consumer did not properly maintain the vehicle, however the consumer had proof that the vehicle was well maintained, once that proof was sent, the manufacturer claimed the warranty only covered one single repair, but the original repair never fixed the design flaw, but only cleaned out the oil gel.
At only 30,000 miles, while vehicle still under full bumper to bumper warranty, smoke began emitting from exhaust pipe. Took to dealer - dealer says it is steam. Next smoke gets worse (its blue) & oil light flashes when braking. Take it back to dealer - dealer says need oil change. Do it. Next - same stuff. Take it back. Dealer says oil leak in valves or rings - will call to set up appt. For repair. No call. I call dealer. Dealer says want oil change receipts. I get them. Dealer says no fix under warranty, not covered, caused by consumer lack of maintenance. I complain to manufacturer. No luck. I look on internet - hundreds of identical complaints on various web sites. Caused by sludge in engine, which analysis of shows water & fuel in oil. I contaact you.
While driving engine check light continously illuminates. Oil turns to thick sludge like substance, and blue black smoke comes from tail pipe. Please provide any further information.
See all problems of the 2000 Toyota Sienna.
While driving engine check light illuminates continously. Oil turns thick/ sludgy like substance, also, blows out blue black smoke from tail pipe. Please provide any further information.
|Problem Category||Number of Problems|
|Engine And Engine Cooling problems||
|Gasoline Engine problems||
|Check Engine Light On problems||
|Engine Oil Leaking problems||
|Engine Cooling System problems||
|Engine Belts And Pulleys problems||
|Engine Exhaust System problems||
|Manifold/header/muffler/tail Pipe problems||