motor computer?

2015 FORD FOCUS
52,000 MILES • 4 CYL • AUTOMATIC
Avatar
ALELEDABOSS
  • MEMBER
  • 1 POST
I had a cylinder four misfire and was told I needed a motor. They put the motor in, but the car was still acting up, so they put a computer in and had it programmed, but the car is still skipping and now drivable. What could be wrong with it?
Jan 2, 2023 at 1:11 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

Is the problem still related to cylinder 4? I'm not sure what they used to justify replacing an engine with 50,000 on it, but apparently, that wasn't the issue.

Here is the thing: For a cylinder to misfire, there are 4 possible causes, timing, ignition spark at the spark plug, fuel to the cylinder, or compression. Were any of those things mentioned?

Presently, is the check engine light staying on, and if so, has the computer been scanned for diagnostic trouble codes? If so, do you know what they are?

Take a look through this link in the interim. I think you may find it of interest.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Let me know as much as you can related to the problem and what has been done.

Take care,

Joe
Jan 2, 2023 at 8:13 PM
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.