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

Tiny
SPARKYGIZMO
  • MEMBER
  • 1994 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 161,000 MILES
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.
Thursday, August 25th, 2016 AT 6:02 PM

7 Replies

Tiny
TWYSTED696
  • MEMBER
  • 2 POSTS
Have you tested the ignition switch with a volt meter to check your theory
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Thursday, August 25th, 2016 AT 6:08 PM
Tiny
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Yes zero
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Thursday, August 25th, 2016 AT 6:09 PM
Tiny
TWYSTED696
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Did you make sure your battery is plugged in?
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Thursday, August 25th, 2016 AT 6:13 PM
Tiny
SPARKYGIZMO
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Yes.
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+1
Thursday, August 25th, 2016 AT 6:17 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
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.
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Thursday, August 25th, 2016 AT 6:41 PM
Tiny
SPARKYGIZMO
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Saturntech I have only one "coil pact" I have a ignition coil
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Thursday, August 25th, 2016 AT 6:44 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
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.
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Thursday, August 25th, 2016 AT 8:54 PM

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