1996 Mercury Mystique Pulsing Engine

1996 MERCURY MYSTIQUE
48,000 MILES • 4 CYL • FWD • AUTOMATIC
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JLMATHIEU
  • MEMBER
  • 1 POST
When holding the engine RPM's up, the engine pulses high to low. At idle the engine runs smooth.
Jun 18, 2008 at 2:18 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
i would suspect a possible vaccum leak, maybe a faulty fuel filter.

hows the air filter looK?
Jun 18, 2008 at 2:59 AM
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