1999 Toyota Avalon Engine cooling Problems
- Complaints
- 6about this part
- Share
- 7%of 92 total for the year
- Median mileage
- 37,050miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine cooling of the 1999 Toyota Avalon, 7% of the 92 complaints for this model year. Where a mileage was given, the median is 37,050 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Check engine light illuminated at 25-30 MPH. Dealer advised consumer to keep driving the vehicle until light might go off on it's own. Check engine light stayed on for 4 weeks, computer diagnostic was done at that time, and it showed that charcoal canister vacuum switching valve had to be replaced. Toyota paid for part under good will program.”
NHTSA complaint #10047971, filed 2003-12, 34,200 miles“Dt: 1999 Toyota Avalon. Had the evaporative canister system tank replaced on october 18,2005. The tank was leaking gas, and check engine light came on. Called the manufacturer, and they said there was not recall. Had not contacted my dealership, and I had not had any accidents. This has not happened before.”
NHTSA complaint #10140155, filed 2005-10“Engine developed sludge at 18,000 miles and dealer says the engine will seize up soon. Regular oil changes were performed and proved to the dealer, but the dealer says sludge is not covered under warrenty and I am responsible for replacing the engine. I believe there is a defect in my engine and should be replaced by Toyota. I am affraid of engine seizure while driving and causing an accident.”
NHTSA complaint #750645, filed 2001-08“Problem 1: the car shifts poorly when you let off the gas and then accelerate or do a rolling stop. Toyota's field technical specialist, ron wytock said that those driving situations produced a 2 gear downshift when it shouldn't but that was normal and not repairable. Problem 2: the car has a very nasty, acrid odor, that gives us headaches and makes us nauseous when we drive it. We have taken the car in more than 4 times in attempts to get it repaired, but the smell is still there. …”
NHTSA complaint #716469, filed 1999-12“Engine was hestitating and smoke was coming out of tail pipe. Mileage just turned over 21,000, and dealer would not honor warranty. Dealer was refusing to repair vehice unless consumer covered the cost. Dealer stated that oil changes were done on time, building up sludge in engine.”
NHTSA complaint #897387, filed 2001-10Related service bulletins
- 10061567Apr 23, 2013Summary to be provided on a future date.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2013 | 3 | 2% |
| 2011 | 2 | 2% |
| 2010 | 1 | 2% |
| 2009 | 1 | 1% |
| 2008 | 3 | 1% |
| 2007 | 8 | 3% |
| 2006 | 57 | 16% |
| 2005 | 24 | 11% |
| 2004 | 5 | 2% |
| 2003 | 5 | 2% |
| 2002 | 7 | 6% |
| 2001 | 14 | 10% |
| 2000 | 18 | 10% |
| 1999 | 6 | 7% |
| 1998 | 9 | 5% |
| 1997 | 8 | 6% |
| 1996 | 19 | 17% |
| 1995 | 6 | 8% |
Other parts of the 1999 Toyota Avalon
22 complaintsVehicle speed control
20 complaintsSuspension
14 complaintsBrakes
6 complaintsElectrical system
6 complaintsTires
5 complaintsFuel system
4 complaintsSeat belts
4 complaintsTransmission and drivetrain
4 complaintsEquipment
3 complaintsSteering
3 complaintsBody and structure
3 complaints
← All problems reported for the 1999 Toyota Avalon
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology