ignition coils

1999 MERCURY MARQUIS
78,000 MILES • V8 • 2WD • AUTOMATIC
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SHARKMAN3184
  • MEMBER
  • 1 POST
can you check ignition coils on a mercury marquis with a meter>?
Aug 22, 2011 at 9:17 PM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
Yes and no. You can take a resistance reading but the problem is that they are heat sensitive and the reading will drastically change when it gets hot and may only be failing at that time so it's pretty unreliable to test a coil.
Aug 22, 2011 at 9:35 PM
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