It sounds like you might have piston pin slap...Jim

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James A. Harris

Normal. It's some valve that I can't recall it's name right now. Many people visit the dealer about it.

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John Shellenberg
1998 C230 "Black Betty" 240K

http://img31.exs.cx/img31/4050/tophat6.gif

Let us know when you remember the name of the valve. My car makes a rattling noise and the dealer told me to run REGULAR. Maybe they don't know about the valve...

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

It's not a rattling noise, but a tick-tick-tick noise. Try searching?

Try "hot idle tick noise" or something like that.

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John Shellenberg
1998 C230 "Black Betty" 240K

http://img31.exs.cx/img31/4050/tophat6.gif