loss off compression in cylinder 3

2001 FORD F-150
160,000 MILES
Avatar
JAZMANSKI
  • MEMBER
  • 1 POST
Note I change Ignition coil and plug. What could be the cause of a 26% loss of compression on cylinder 3. Fuel injection checked out ok
Feb 4, 2012 at 12:28 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
If you lost compression on that cylinder, either you have an issue with a valve, head gasket, or rings.
Feb 4, 2012 at 12:31 AM
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 Free Question
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.