Ignition coils

Tiny
SHARKMAN3184
  • MEMBER
  • 1999 MERCURY MARQUIS
  • V8
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
Can you check ignition coils on a mercury marquis with a meter>?
Monday, August 22nd, 2011 AT 9:17 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 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.
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Monday, August 22nd, 2011 AT 9:35 PM

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