Engine misfiring?

Hi,

Many things can cause a misfire. Old spark plugs and wires, fuel pressure issues, engine vacuum leaks, and so on.

I have to start by asking, have you had the engine computer scanned for codes? If you haven't, that is where I would start. That will likely identify which cylinder(s) have the problem and if there is anything else that could be related.

Here is a quick video showing how it's done:

https://youtu.be/b2IJGfImVvw

I realize most people don't own a scanner, but often times, a parts store will do it free of charge.

Do this and let me know what codes are found. If you have already had it done, let me know the codes.

Take care and God Bless.

Joe