1999 Chevy Silverado Hard start and quick fuel pressure ble

1999 CHEVROLET SILVERADO
89,000 MILES • V8 • 4WD • AUTOMATIC
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DLUEDKE
  • MEMBER
  • 1 POST
Have a 99 silverado with 4.8, always starts on second attempt cold or hot. Checked fuel pressure: 50 psi, :60 psi when fuel pressure regulator vacuum line removed. After engine is shut off pressure drops from
50 psi to 0 in about 30 seconds. Can also hear hissing in fuel tank after shut down. I'm thinking the fuel check valve in the tank is shot. Should I check anything else before I run the tank near empty and pull the fuel pump?

Thanks
Dan
Jun 9, 2008 at 7:40 AM
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RHALL77
  • ✓Experienced Mechanic
  • 3,361 POSTS
i would replace the fuel pump
Jun 9, 2008 at 7:56 AM
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