1999 Chevy Silverado fuel in intake plenum

1999 CHEVROLET SILVERADO
Avatar
SKEET11358
  • MEMBER
  • 1 POST
Engine Mechanical problem
1999 Chevy Silverado V8 Four Wheel Drive Automatic 98.000 miles
----------------------------------------------------------------
My truck quite running after looking over the motor i seen gas leaking out throughthe throttle body i open the throttle body gas ran out i then taken off the plenum about a pint of gas came out, what is causing this and how to correct this problem.
Sep 17, 2008 at 7:22 PM
Advertisement
Avatar
2CARPRO JACK
  • CAR REPAIR CONTRIBUTOR
  • 11,533 POSTS
5.3 liter? sounds like the fuel pressure regulator is blown and dumping raw fuel into the intake.It is located on the drivers side of the engien on the fuel rail, it has a small vacuum line that goes up to the intake manifold. You can purchase them at the dealer for a reasonable price and change it yourself.
Sep 17, 2008 at 7:27 PM
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Could be the regulator or the injector/s leaking or the fuel pressure excessive
Sep 17, 2008 at 7:29 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.