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Fuel systemPart report

2003 Toyota Avalon Fuel system Problems

Complaints
7about this part
Share
2%of 293 total for the year
Median mileage
63,736miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the fuel system of the 2003 Toyota Avalon, 2% of the 293 complaints for this model year. Where a mileage was given, the median is 63,736 miles. 2 of these say a crash was involved, according to the filers.

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.

“As I was backing out from a space in a parking lot, my car suddenly accelerated and I had a hard time getting it to stop with the brake pedal. The wheels were turned in a sharp left position. The engine sounded like it was at a high rev. The right side of my car crashed into two cars on the opposite side of the parking lot aisle before coming to a halt. The whole event lasted just a few seconds. Fortunately, no one was injured.”

NHTSA complaint #10488626, filed 2012-12, 99,070 miles

“The engine started cold and revved to 2500 RPM and then oscillated between 2500 and about 3000 RPM and never slowed down. I put the car in drive and drove it the block and a half to my house using the brake to stop at the only stop sign on the route but stopping was difficult. The next morning I experienced the same ultra-fast idle and drove the car on an errand that was about 2 miles distant. The same pattern persisted but the brakes were heating up and smelling from frequent use in keeping the car within the city speed limit. …”

NHTSA complaint #10671578, filed 2015-01, 138,766 miles

“The subject of this complaint is my 2003 Toyota Avalon lx which had a total mileage of approximately 17,100 miles. This vehicle was last serviced at 9,000 miles plus. On april 29, 2014 the subject vehicle was parked in the back parking lot of a small mini mall at 3601 e. Foothill blvd.,pasadena, california. After we finished shopping at the mini mall, we returned to the our vehicle and strapped ourselves in the car with our seatbelts. When I turned on the ignition of the subject vehicle I had my left foot on the parking brake and my right foot on the driving brake. …”

NHTSA complaint #10587633, filed 2014-05, 17,100 miles

“I believe that Toyota is covering up the real cause of the acceleration of the engine while driving. It happened to me while I was driving and was very frightening. The engine begin to speed up automatically and I could not stop it with my brakes. I put the car in neutral and then stopped. The engine continued to race. I took the car to the local Toyota dealer the next day and it did the same thing. It reached speeds of 70+MPH without me touching the pedal. The Toyota dealership replaced the idle air control valve pn. 22270-0a060. I have not had a problem since. …”

NHTSA complaint #10301799, filed 2010-01, 139,451 miles

“2003 Toyota Avalon xls. Stalled while driving. Had to leave the car in street and walk home. Would not restart for at least 30 minutes. Also would start, then stall and not restart for at least 30 minutes on other occasions intermittently. This was very concerning because the engine would just turn off during driving and not restart. Took to b&d auto repair, who could not replicate problem and then called Toyota dealership in carlsbad who told them was probably the idle air control valve as they had been finding this an issue with avalons. …”

NHTSA complaint #10294857, filed 2009-12, 63,736 miles

Fuel system: other model years

YearComplaintsShare of year
2020550%
20192130%
2018313%
201717%
201537%
201477%
201343%
201122%
200911%
200831%
200773%
2006103%
200563%
200452%
200372%
200233%
200164%
200021%
199944%
199853%
199722%
199611%
199523%

Other parts of the 2003 Toyota Avalon

Air bags
184 complaints
Vehicle speed control
51 complaints
Steering
19 complaints
Electrical system
18 complaints
Brakes
15 complaints
Suspension
9 complaints
Engine
7 complaints
Body and structure
7 complaints
Seat belts
6 complaints
Transmission and drivetrain
6 complaints
Engine cooling
5 complaints
Other or unknown
5 complaints

← All problems reported for the 2003 Toyota Avalon

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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