2002 HYUNDAI SONATA HARD TO START

  • Tiny
  • bowdog
  • 2002 Hyundai Sonata

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.

Friday, June 11th, 2010 AT 5:01 AM

1 Answer

  • Tiny
  • rasmataz
  • Member

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

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Friday, June 11th, 2010 AT 5:24 AM

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