2002 Hyundai Sonata hard to start

2002 HYUNDAI SONATA
101,875 MILES • 6 CYL • FWD • AUTOMATIC
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BOWDOG
  • MEMBER
  • 1 POST
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.
Jun 10, 2010 at 10:01 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
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
Jun 10, 2010 at 10:24 PM
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