Question about 1996 Jeep Grand Cherokee

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I have a jeep grand cherokee laredo with the 4.0L inline 6 and it stalls when driving and is also hard to start. the engine turns over, so i know its getting enough juice but it will not start. after doing this trying to start i smell gas so i know that the injectors are spraying. i noticed that i am not getting spark by doing the spark plug tricky. when it starts that means it has spark and other times it just doesn't. this thing is stupid. i have changed spark plugs, wires, distributor, distributor cap, ignition coil, alternator, battery, battery cables and terminals, fuel pump, relays, engine computer, map sensor, idle air control valve, throttle body, crankshaft sensor, o2 sensors, catalytic converter, exhaust manifold, cleaned injectors, rebuilt transmission and man i gotta tell ya nothing seem to stop it. why is it not firing like its supposed to when i start it. it can't be the timing chain because when its running good i have no problems. as long as i don't stop it and let it sit for to long it starts right up like a brand new vehicle. i can drive it across the country. some one please help me

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  • mike loshbough
    mike loshbough May 11, 2010

    pick up coil in the distributor have you done that yet?



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It is most probably the crancase ventilator gizmo. Go to the Jeep dealer or other reputable mechanic to repair. I did and it cured the problem. It cost me about $120 and it was well worth it.

Posted on Mar 06, 2009

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Have you actually had a fuel pressure test done on this Jeep? I had a 93 cherokee limited and i replaced the fuel pumpo but the new one was bad and it wasnt getting enough psi's

Posted on Mar 05, 2009


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SOURCE: where is the crankshaft sensor

11 o'clock on bellhousing even with the flywheel. looking from rear.

Posted on Sep 12, 2010

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