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#1
02-12-2000, 02:05 PM
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Hi!
Here's what I've noticed: When the engine is freshly started the idling goes up and down. *Take note it's not rough. A better way to describe it is that it like REVS up every 5 secs or so. It can be simulated in a tuned engine when you "press & let go" on the accelerator every 5 secs. Someone told me it could be vacuum related. Does vacuum have something to do with the 300D's engine? Thank you again! Francis 85 300D 55K Philippines 
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#2
02-14-2000, 07:41 AM
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Diesel engines are not throttled, thus they do not make vacuam. The problem you describe is called "hunting", and is probably related to the govenor. This should be a minor adjustment for a Benz diesel technician.
------------------ Larry Bible '84 Euro 240D, 516K miles '88 300E 5 Speed Over 800,000 miles in Mercedes automobiles
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