c180 manual idles at 1200. Trottle housing was replaced, but with no effect. When a/c is switched on the idle is at 800 rpm as it should be . HELP

Asked by Nov 26, 2012 at 12:24 AM about the 1995 Mercedes-Benz C-Class

Question type: Maintenance & Repair

1 Answer

12,735

One possibility is vacuum leak. You can find them by spraying starter fluid in suspect areas. If the engine rpm increases you have found the leak.

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