Question about 1997 GMC Jimmy

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97 jimmy wont start

It cranks, but wont start up even after I have deduced problems by replacing the fuel filter, replacing the ignition coil, tested for spark by pulling one plug (cyl 2) by holding it to the block- it fired, plus I know the fuel pump is good cause we checked for pressure-good and checked for the pump motor sounds-good...its getting fuel, getting spark to the plugs...could this mean I have dirty injectors? It seems like it wants to start - what could be wrong?

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  • raaltunethem Dec 14, 2008

    I forgot to ask if its possible to clean the injectors on this vehicle and whats involved?
    4.3 l vortec


  • raaltunethem Dec 14, 2008

    Is it possible that I may have cracked the dist. cap when I washed the engine at a carwash when the engine was hot? It didnt want to start right after that but finally did. I drove it a few times after that, but the last time it was driven, it ran soooo badly and I had to fight a bit to keep it going.

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  • 328 Answers

Check for a bad distributor cap and or rotor..........a bad cap and or rotor can caues firing (cross fire)across the terminals and introduce spark to the wrong cylinders at the wrong time.......
hope this helps.....good luck!

Posted on Dec 14, 2008

  • Emilio Lopez
    Emilio Lopez Jan 22, 2014

    Ive replaced everything including injcetors,fuel pump,fuel releaf.all tune up.checked compression.has spark.will start up if you inject fuel into the vacume line,for a second or two then dies.ive even repaced the ECU.still the same.

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