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99 sonoma fuel issue

Discussion in 'Chevy S10 Forum (GMC Sonoma)' started by hummerman24, Apr 18, 2013.

  1. hummerman24

    hummerman24 New Member

    I have a 99 sonoma with a 4.3 v6 and 180,000 miles on it. The truck starts then dies one to five seconds later. When I depress the foot throttle the truck dies instantly. I think I have finally narrowed down to the fuel system because i put fuel in the intake and it ran for 30 seconds. The pressure is at 60 psi and drops to about 56 after the truck dies so I don't think its a leak or the fuel pump. Any help is appreciated.
  2. stratct

    stratct New Member

    Fuel filter first then try the pump. Sounds like a plugged filter.
  3. 09mgray

    09mgray Member 1 Year

    eather a Plugged filter or i kno on my Sonoma if Any of the Air Intake is Alittle Loose it HATES to run or wont even start 4.3 Vortex is a very picky engine

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