1999 Toyota Sienna engine and engine cooling problems
39 owner complaints filed with NHTSA name the engine and engine cooling on the 1999 Toyota Sienna — 18% of all complaints for this model year.
What owners report
“I have a toyota sienna 99 and my check light coming out and start to smoke so I find the engine do the oil be sludge, I want to know if is some way of toyota fix this problem for me whit out charge because is a manufacture problem. *tr”
filed Oct 18, 2010
“I am reporting another toyota sticky accelerator pedal. Our 1999 sienna minivan has had 3 incidents of stuck accelerator, the most recent was jan. 21, 2010. I believe it has become "stuck" between 40 and 45mph. Other incidents were in summer (cannot remember date) and october 2009. The 1st incident…”
filed Jan 28, 2010
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine and Engine Cooling problems in other Sienna years
| Year | Reports | Share |
|---|---|---|
| 2013 Sienna | 1 | 1% |
| 2012 Sienna | 1 | 0% |
| 2011 Sienna | 6 | 1% |
| 2010 Sienna | 4 | 2% |
| 2009 Sienna | 4 | 2% |
| 2008 Sienna | 12 | 3% |
| 2007 Sienna | 14 | 4% |
| 2006 Sienna | 4 | 0% |
| 2005 Sienna | 17 | 2% |
| 2004 Sienna | 46 | 2% |
| 2003 Sienna | 6 | 6% |
| 2002 Sienna | 16 | 9% |
Other reported problem areas on the 1999 Toyota Sienna
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.