2000 MERCURY MARQUIS MISFIRE

  • Tiny
  • Wayne Easley
  • 2000 Mercury Marquis

Engine Performance problem
2000 Mercury Marquis V8 Two Wheel Drive Automatic 128000 miles

periodically the engine misfires when letting up the accelerator part way it never misses when accelerating hard. Have replaced plugs, boots, EGR valve and sensor, Crank position sensor and had fuel pressure checked. Replaced fuel filter and tranny fluid. Its driving me nuts. Please help! Thanks!

Do you
have the same problem?
Yes
No
Tuesday, September 21st, 2010 AT 8:39 PM

1 Reply

  • Tiny
  • rasmataz
  • Member

Clean and test the idle air control valve and the MAF sensor

Was this
answer
helpful?
Yes
No
+1
Tuesday, September 21st, 2010 AT 10:24 PM

Please login or register to post a reply.

Similar Questions