I liked 230/8's answer quite a bit. I think he is on to something, or else on something (only kidding).

Speaking of intermittent problems, that reminds me of a problem we had with a Pioneer cassette deck back in around 1980. It had a problem that would occur only every once in awhile. It was under warranty so we took it to the repair place. They had it for 3 weeks and finally said they had diagnosed it. So we went in to pick it up. The guy brings it out and shows us the paperwork. The diagnosis: "Intermittance" !! Later in life I became an electronics bench tech and I must have used that line a million times . "What's wrong?" "Well, looks like it has Intermittance"...

Mike

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra