Question about Chevrolet Silverado 1500

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I started my truck up this morning and let it idle as always everyday and all of a sudden the engine turned off like if someone fliped a switch or something...checked for spark at the coil and found no spark...at the same time the fuel injectors are dry with no fuel coming out...is it key on fuel pump goes on for a moment then stops then upon cranking engine ecm signals spark and fuel delivery?...this is for a 1990 chevy TBI 5.7 4x4 K1500...fuses looks good don't know what is goin on...I need help!!!...

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Your fuel pump runs for a few seconds when you turn the ignition is turned on because the fuel pressure naturally eases off when the engine is stopped, it runs until it gets to>< 30PSI and kicks off. This is normal, you know that fuel is reaching the injector line. On some engines there is a solenoid that has to trigger before fuel can go into the fuel lines for the injectors. If this solenoid isn't firing the computer will detect it and shut off the ignition. Look for some kinda solenoid or gadget where your fuel line come up in front of the fire wall. It should be close to where the fuel line splits off to go to each bank. Hope it;s a wire come unplugged and easy fixed. dhgill1949

Posted on May 22, 2011

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