GUIDE - What are your spark plugs trying to tell you?

[jhc 28]

Not only are spark plugs responsible for many running issues, they can also tell you all sorts of things that may be causing running issues.

 

 

Whenever I have a car with a tricky diagnosis, I check the plugs.

[Smaky 73]

Have Haynes sanctioned this?

[jhc 28]

Is it haynes?

 

If it is, as per copyright rules, as we're not profiting from it in any way and it's a link to a file hosted elsewhere, if they ask us to remove it, we will.

 

But thanks for the concern.

[Smaky 73]

OL, it's just that is a scan of the very page in every Haynes manual since time began.