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Old 08-27-2005, 11:03 PM
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sixto sixto is offline
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,718
You have multiple problems. The door locks of your car have their own electric pump. Loss of vacuum causes the transmission to slam gears, not flare. The engine has no dependency on vacuum for smoothness warm or cold. IMO, none of these problems are related to the engine vacuum pump.

How long before the engine smooths out? A couple of minutes could mean a bad glow plug or two.

95 S420
87 300SDL
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