2001 Mercury Cougar motor is missing

2001 MERCURY COUGAR
101,000 MILES • 6 CYL • 2WD • AUTOMATIC
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CLAY123456789
  • MEMBER
  • 1 POST
why is my car missing when the air is on
Jun 27, 2010 at 11:13 AM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
A/C being on puts more stress on motor and is probably just making a miss thats already in engine even more apparent. it may be due for new spark plugs and wires as well as new fuel filter.
Jun 27, 2010 at 6:53 PM
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