From a Hyundai dealer technician- there is no serviceable fuel filter on the 2003 Sonata. The filter is a "lifetime" strainer on the fuel pump in the fuel tank. It would be replaced with the replacement of the fuel pump only.
how do you replace fuel pump on the 2003 sonata
The 2003 Hyundai Sonata has 16 valves.
how many spark plugs in the v6 2.7l 2003 Hyundai sonata?
The 2003 Hyundai Sonata is a gas-powered vehicle.
The 2003 Hyundai Sonata has a 5-speed manual.
The 2003 Hyundai Sonata has an inline 4 engine.
The 2003 Hyundai Sonata has double overhead cam (DOHC).
The 2003 Hyundai Sonata runs on regular unleaded.
The 2003 Hyundai Sonata is 15 ft. 6.9 in. (186.9 in.) long.
The curb weight of the 2003 Hyundai Sonata is 3181 lbs..
The 2003 Hyundai Sonata's turning circle is 34.4 ft..
The height of the 2003 Hyundai Sonata is 4 ft. 8 in. (56 in.).
inside the tranny pan