firing order?

1992 MERCURY MARQUIS
230,000 MILES • V8 • 4WD • AUTOMATIC
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KENCO412
  • MEMBER
  • 1 POST
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.
Jun 14, 2009 at 2:51 PM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.


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

Hello, I found the above picture. Check out the images (below).
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Jun 14, 2009 at 4:02 PM
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