Engine lopes while idling

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Engine lopes while idling

01-13-2001, 11:34 PM

Crowe

Benz Enthusiast

Join Date: Apr 2000

Location: Atlanta, GA

Posts: 366

My 88' 300E has had a rough idle off and on for some time. I have replaced the plugs and used a fuel injector cleaner in the tank. It comes and goes. Now it also idles erratically at times. The tach normally idles at around 600 rpm, when it lopes it drops to around 400 and goes up to about 1500. At times it will drop too low to recover and will stall. Any idea what might be the problem?

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