Hello guys the spark plug for cylinder 3 was rusty when i replaced them earlier on my 2010 250, any ideas as to what could be causing this?. Before I replaced them the engine ran fine except when cold when it was a bit kangarooish lol. The spark plugs was last replaced 2 years ago. Also there is a small coolant leek, could this be connected to the above?. Thanks in advance
Need more info, where is the coolant leaking from? Obviously water or moisture has got to the spark plug, what end of the spark plug is rusty?
Thanks for your replies guys, rather stupidly i can't remember which part was rusty. I occasionally wash the underside of the bonnet which gets the engine wet.
