I have ordered new coil packs for my car as one has failed an now another is failing. I decided to replace all of them. I don't think the work is difficult but have heard that you have to replace them in firing order. Is this correct and how do I find out the firing order for my engine? Thanks from snowy and cold Chicago.

Steve

 

No, no truth to that.

 

First I've heard of that too. It's not like coil packs get replaced while engine is running! On top of that, I haven't experienced any bad results from replacing only one coil compared to proactively replacing all at once (my S-Type or multiple Fords).

Like replacing wires, it IS easier to replace one at a time, old for new, so you get the right connections....

 

It's pretty simple. An 8mm bolt holds each in. I did the spark plugs and took my time when I did all 8 on our old S-Type and it took only a couple of hours.