rough idle and no prime

Discussion in 'Chevy Truck Forum' started by bigdog24c, Apr 25, 2013.

  1. bigdog24c

    bigdog24c New Member

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    I have a 1990 chevy 2500 5.7 350 tbi motor.when I turn the key on its does prime the throttle body to start. When I turn it over tbe injectors spray but it wont crank. I can pour a little gas in the bowl and it will start but runs real rough. It will idle for q out 15 to 20 sec the sputter out and die. Any ideas where I can start at to try to fix it..any help is greatly appreciated..only vechile we have all responses will be helpful. Thanx
     
  2. bigdog24c

    bigdog24c New Member

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    Sorry does not prime when key is on and pump is running when key is turned to on position
     
  3. leolkfrm

    leolkfrm Full Member

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    coolant temp switch
     

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