2003 Ford Fiesta car missing

2003 FORD FIESTA
47,000 MILES • 4 CYL • 2WD • MANUAL
Avatar
ROB PARRY
  • MEMBER
  • 2 POSTS
the car is missing especially when cold in the mornings and when accelarating and going up hill i have changed plugs leads but still no difference
Feb 4, 2010 at 1:44 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Engine sluggish/misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Feb 4, 2010 at 3:58 AM
Advertisement