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Old 12-23-2009, 07:31 PM
jt20 jt20 is offline
Registered Hack
Join Date: Mar 2008
Posts: 4,617
most likely a leaking brake booster and/ or poor vacuum supply.

Next time before you shut your car down, have your MightyVac handy and tee into the main vac line that runs to the booster - take a reading

disconnect the main line from the booster and plug it well - take a reading.

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