Loose spark after it warms up?

1989 NISSAN PATHFINDER
200,000 MILES • 6 CYL • 4WD • AUTOMATIC
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BUSHMANGREG
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1989 Nissan Pathfinder. After starting it runs ok, then as it gradually warms up it runs rough, sometimes starts to stall while driving, then after about 19-20 minutes it stalls and there is no spark. After sitting for about 30 minutes it will start back up. I have replaced the distributor cap, plug wires, coil and ignition module. Any ideas?
May 6, 2015 at 5:59 PM
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JACOBANDNICKOLAS
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Did you replace the crank sensor which I believe it in the distributor?
May 6, 2015 at 7:13 PM
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BUSHMANGREG
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No, I haven't. Is that difficult to replace?
May 6, 2015 at 7:51 PM
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JACOBANDNICKOLAS
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It shouldn't be too bad.
May 7, 2015 at 5:26 AM
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BUSHMANGREG
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Do I have to completely remove the distributor in order to replace it, or can I replace it with the distributor still in the engine? Thank for the information!!
May 7, 2015 at 7:22 AM
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JACOBANDNICKOLAS
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1989 was awhile ago. I don't think it needs removed. My manual doesn't say. Take a look at the attached pic. It walks you through a test procedure. That could save you some time and money.
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May 7, 2015 at 7:02 PM