I've got a 97 4 Runner (180k miles) that has a slight shake in the morning for a few seconds after starting. The shake got worse over a few months before I took it for a tune-up at the dealer. They found one plug was very worn and replaced the coil.
Two days later the shake is starting to come back. I'm planning to call them tomorrow to have them take another look. I'm not a mechanic but hope someone here can give me an idea of what else to look for.
-Scott
Ah, the shakes..... I remember them fondly. My 1992 Toyota pickup would shake me back and forth, left and right, while it warmed up and it did it for many years. The problem did not appear to be a worn engine mount, but an internal one: a slapping piston perhaps, or late firing of the spark plugs. If the power strokes are delayed, some rocking side to side can occur at idle but it will be slight.
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