truck isn't getting any spark possible bad ignition switch (not tumbler)

1994 CHEVROLET SILVERADO
161,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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SPARKYGIZMO
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i think my ignition switch is bad because its not sending spark to the ignition coil. but the truck still turns over and fuel still gets to the throttle body i have replaced the whole entire distributor, also the icv and map senor.
Aug 25, 2016 at 6:02 PM
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TWYSTED696
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Have you tested the ignition switch with a volt meter to check your theory
Aug 25, 2016 at 6:08 PM
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SPARKYGIZMO
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yes zero
Aug 25, 2016 at 6:09 PM
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TWYSTED696
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Did you make sure your battery is plugged in?
Aug 25, 2016 at 6:13 PM
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SPARKYGIZMO
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yes...
Aug 25, 2016 at 6:17 PM
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SATURNTECH9
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https://www.2carpros.com/articles/how-to-test-an-ignition-system
I posted a article to help you step by step let me know what you find and we will go from there.
Aug 25, 2016 at 6:41 PM
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SPARKYGIZMO
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Saturntech i have only one "coil pact" i have a ignition coil
Aug 25, 2016 at 6:44 PM
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SATURNTECH9
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With the key in the run position use a volt meter ground the black lead to the engine.Then hook the red lead to the b terminal connector going to the coil you should see battery voltage.Also unplug your pick up coil and measure the resistance of it should be 500-1500 ohms .
Aug 25, 2016 at 8:54 PM