1999 Ford Escort clinder 3 misfiring

1999 FORD ESCORT
100,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
CAROL1562
  • MEMBER
  • 1 POST
hi hope yous can help real upset. i have ford excort 1999 engine light was on had codes read i replaced oxgen sensor one idle air control value too now it comes up ozgen sensor and clinder 3 misfiring. cars running terrible bucking and stuff please help me
Aug 20, 2009 at 5:26 AM
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
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.
Aug 20, 2009 at 5:50 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle