Ok, pulled the spark plugs (NGK BKR6EGP looks like)
Tops look cooked, #6 seemed a little oily). Will be replacing plugs today-suggestions?

Probed the cylinders with a length of rope and no sign of coolant, tiny oil residue in #6.

I replaced 5 and 6 ign coils with cheap coils and #6 had actually slipped off the spark plug…..get what you pay for I guess.








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