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1997 Chevy Silverado Starting Problems

Tiny
SCOTT ARMSTRONG
  • MEMBER
  • 1997 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 15,000 MILES
The starter went out, replaced it now I have such a weak spark it wont start. Checked the coil pack, its fine, changed the ignition control module, same, changed the pick up coil(module) whatever, same thing. I have a good red top Optima battery, so enough voltage. I have 12 volts going the the coil but a very weak yellow spark coming out of the coil. Can anyone point me in the right direction next? The ECU
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Monday, December 29th, 2008 AT 4:04 PM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Ou to try another coil. Your getting plenty of power. The other side should be getting a -12v pulse each time it fires, that way it charges the coil, then when the pulse leaves the magnetic field colapses and gives you one heck of a jolt.
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Wednesday, September 2nd, 2020 AT 5:55 PM

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