Ignition coils

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

WRENCHTECH

MECHANIC
20,758 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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Ignition coils

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