Hi all, I am new to this forum. I have a issue with my 2006 Ford Escape 3.0l XLT. The vehicle is misfiring with the battery light on the dashboard going off and on. The misfiring gets worst when the air condition is on. When I run my obd2 error checker and no error codes were found. I have change spark plugs but same results. Can someone please advice me on what is the possible problem and solution to my problem I would be very grateful. Thanks in advance.

 

Diagnosing over the internet gets kinda risky.
Something you might check out,
To me it seems, there is a poor connection supplying power to the vehicle and its components.
First I would suggest that you check and make sure all the connections coming right off the battery going to the various parts of the vehicle are clean and making good contact. If any doubt, remove and make sure they are clean and tight. This includes all the ground connections too.
If that doesn't solve the problem unplug the plug from the alternator and see if that makes any difference with a short test drive. If it does, there is a problem with the alternator and it may require replacement.

 

Hanky, thanks alot. I will try what u suggested.

Walter

 

Hanky,

I tried what you told me to. The alternator sending out 4.2 volts, put new spark plugs