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My 1999 Chevy Suburban K1500 cranks; but will not start.

Engine cranks well; but will not start. Shortly before this happened the check engine light came on. Code P0141 for O2 sensor heater. Fuel pump sounds like it activates when I turn the key.

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You have to determine whether there is no fuel supply or no spark supply. Disconnect one plug wire and ground it to the engine and crank the vehicle. There should be a visible spark and snapping heard. If spark ok check fuel pressure on the fuel rail with a guage. Should be 55-60lbs.

Posted on Apr 11, 2015


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