Question about 1993 GMC Sierra

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Truck seems to run on four cylinders some times then will be o.k.,fuel filter is o.k.,fuel pump is pumping o.k.,but throttle body is only pumping fuel through one side.checked power and I have 11.5 V at both connections to the injectors.????

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The injector is basically an electric motor or solenoid. If you have voltage, but no fuel, the injector is most likely bad.

Posted on Mar 14, 2011

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