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Brake Vacuum - Engine Stumble Help Needed 200 1990

posted by  jdl on  Fri Jun 12 02:57 CST 2009
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last visit: Mon Feb 6 11:55 CST 2012
[RELATED]

Hello. My most recent '90 240 engine (runs good) stumbles after pumping the brake pedal two or three times in rapid succession, only for a few seconds and then smooths out. Just one push on the brakes doesn't seem to have any engine effect. Could this be a sign that: a)the vacuum boost is leaking, b)that there is a vacuum leak somewhere else in the system? I have another '90 240 and you can pump the brakes as much as you want without any engine effect. Thanks, jdl






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