MISFIRE

2000 Mercury Marquis

Tiny

Wayne Easley

September, 21, 2010 AT 8:39 PM

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!

FOUND 5708 RELATED QUESTIONS

Engine Miss

52 ANSWERS
12 IMAGES

1 Answer

Tiny

rasmataz

September, 21, 2010 AT 10:24 PM

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

Please login or register to post a reply.

Code Read Retrieval/Clear Chevrolet Camaro
Code Read Retrieval/Clear Mercedes Benz
Code Read Retrieval/Clear Mercedes-Benz C230