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Firing order

Tiny
KENCO412
  • MEMBER
  • 1992 MERCURY MARQUIS
  • V8
  • 4WD
  • AUTOMATIC
  • 230,000 MILES
Dual coil packs on this car, 2 cyl dead after tune up, by someone else. I think 2 wires may be crossed and I dont have any reference material. Narrowed both cylenders to the right side coil pack, cyls 2 and 7 not firing.
Sunday, June 14th, 2009 AT 2:51 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.


https://www.2carpros.com/forum/automotive_pictures/170934_mercury_marquis_1.jpg



Hello, I found the above picture.
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Sunday, June 14th, 2009 AT 4:02 PM

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