Top Answer

try using a higher grade of gasolineif that dosent work takeit in to have your timing checked.

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The 2003 Toyota Avalon has 24 valves.

The 2003 Toyota Avalon has a V6 engine.

The 2003 Toyota Avalon is a gas-powered vehicle.

The 2003 Toyota Avalon has a 4-speed automatic.

The height of the 2003 Toyota Avalon is 4 ft. 9.1 in. (57.1 in.).

The curb weight of the 2003 Toyota Avalon is 3417 lbs..

The 2003 Toyota Avalon has double overhead cam (DOHC).

The 2003 Toyota Avalon has a drag coefficient of .28 Cd.

The 2003 Toyota Avalon is 15 ft. 11.9 in. (191.9 in.) long.

The 2003 Toyota Avalon runs on premium unleaded (required).

The 2003 Toyota Avalon has 38.7 in. of front head room.

The 2003 Toyota Avalon has 41.7 in. of front leg room.

The 2003 Toyota Avalon has 55.2 in. of front hip room.

The 2003 Toyota Avalon has 40.1 in. of rear leg room.

The 2003 Toyota Avalon has 58.4 in. of front shoulder room.

The 2003 Toyota Avalon has 55.1 in. of rear hip room.

The 2003 Toyota Avalon has 58.1 in. of rear shoulder room.

The 2003 Toyota Avalon has 37.9 in. of rear head room.

The rear track of the 2003 Toyota Avalon is 5 ft. 0 in. (60 in.).

The 2003 Toyota Avalon has a 8 ft. 11.1 in. (107.1 in.) wheel base.

The front track of the 2003 Toyota Avalon is 5 ft. 1 in. (61 in.).

The ground clearance of the 2003 Toyota Avalon is 0 ft. 5.1 in. (5.1 in.).

The maximum cargo capacity of the 2003 Toyota Avalon is 15.9 cu.ft..

The 2003 Toyota Avalon has a 3.0 L base engine size.

The 2003 Toyota Avalon has a 3 yr./ 36000 mi. basic warranty.