so now I know how to change out the spark plugs in a late-model Ford Explorer or Mercury Mountaineer, the engine with a coil for each plug. aside from a flex shaft, and borrowing an air compressor to blow the goop out of the spark plug holes, no special tools were needed. before I had the flex shaft in my possession, and I still had 3 plugs left to change out, I had left the last one inadvertently disconnected. that was enough to keep the A/C from operating properly. now it seems to be fine, but I'd better test on a hot day. today is quite pleasantly cool and breezy.

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last updated 2013-12-03 16:13:53. served from tektonic.jcomeau.com