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1996 Mercedes-Benz SL600 Question: Idle problem



richard9174, Wilmington, NC, March 30, 2010, 21:27

I received the car with an empty tank of gas.I filled it up with 93 octane & a bottle of Lucas engine treatment.I then drove it to a laser wash.The vehicle performed great until I got home & placed the car in park.The tach started moving from 650 rpm's to app. 1300rpm's all on its own.It will only do this once the car is at normal operating temps.HELP!

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  • Answer #1

    dannyj144 from Mobile Master Mechanic Inc, March 30, 2010, 23:43

    i suggest you clean iac motor and recheck again

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