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  #1  
Old 08-25-2007, 10:36 PM
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real challenge

OK, I think I have a question that just might stump the pros on here. I have a '92 300D with the 124 chasis and it runs great most of the time. However, when I hit bumps, such as going over railroad tracks, it stalls. Sometimes the stall is bad enough that the car dies, but most of the time it just loses power for a second or two. The car starts back up immediately if and when I have to use the starter. Any ideas on what could be causing the car to stall?
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Old 08-25-2007, 10:49 PM
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Is the stop lever loose and engaging on the bump? Or, is a bump engaging the vacuum shut off for some reason?
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Old 08-25-2007, 11:18 PM
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The idle is computer controlled, it may be coming loose and lowering the idle to a point it can't say running.
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Old 08-26-2007, 02:33 PM
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The stop lever doesn't seem to be having any problems, but I'll check it the next time it happens (assuming I'm not in the middle of traffic). Is there anyway I can check the computer controlled idle to determine if that is the problem?

Any tips on troubleshooting this would be greatly appreciated.

Thanks,
Mark
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