2002 Hyundai Sonata Repair Question
Topics covered: Fuel pump, Engine, Engine performance.
Mileage: No information provided.
Mileage: No information provided.
Asked on June 11, 2010
2002 Hyundai Sonata hard to start
Engine Performance problem
2002 Hyundai Sonata 6 cyl Front Wheel Drive Automatic 101875 miles
I replaced my fuel pump once for low residual pressure, and my vehicle is still hard to start. Could it be the fuel psi regulator, and how can I test it.
2002 Hyundai Sonata 6 cyl Front Wheel Drive Automatic 101875 miles
I replaced my fuel pump once for low residual pressure, and my vehicle is still hard to start. Could it be the fuel psi regulator, and how can I test it.
Answer
Replied on June 11, 2010
Fuel injectors or the fuel pressure regulator is leaking. If the FPR is leaking you will see gas in the vacuum hose/nipple and also the fuel pump check valve and a leaky fuel line