Question about 1997 GMC Jimmy

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1997 jimmy wont start

Was driving and it stalled towed home. changed fuelpump ,fuelinjecters,did a complete tuneup,replaced crank sensor and engine computer. it still just cranks over. has spark and fuel pressure is in specs at 62 psi. wont even fire on starting fluid. help please!!!

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  • aseekings Jan 07, 2009

    the timing is good and all the dash lights do the bulb check when you turn the key on also the mass air flow is unplugged, still no start.

  • aseekings Jan 07, 2009

    i was told it could be the ignition switch so i think i will change it and see what happens.

  • briankruchow May 11, 2010

    When you turn the ignition switch to the run position does all the indicator lights come on?

  • bfg3 May 11, 2010

    I have seen the mass air flow sensors have effects similar to this. try unplugging it and see if it cranks. I believe it has a default setting that will allow it to crank even unplugged. it is located in tubing of intake inbetween breather box and intake of engine

  • bfg3 May 11, 2010

    it sounds like a timing problem. remove oil cap and try to see rocker arms with a flashlight to see if they are rotating.

  • jennifer godlewski May 11, 2010

    How's your timing?



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Check your stater wires

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