Running issues

1998 CHEVROLET S-10
4 CYL • 2WD • MANUAL
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GARFIE3175
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  • 1 POST
enter your question...How do you check a coil pack to see if it is good
Jul 3, 2011 at 6:53 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
Coils can be tested by measuring the resistance of the primary and secondary circuits in them but it's usually very inconclusive because most of the failures are heat related and the coils only fail when they generate enough heat.
Jul 3, 2011 at 7:07 PM
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