1978 - 1996 Big Bronco

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vaccum pressure???

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05-31-2006, 07:08 PM

moritz1024

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vaccum pressure???

what should my vaccum pressure be on an 89 ford bronco. i checked my vaccum with a guage threw the brake booster nozzle and it was only getting 5psi on idle. what should my vaccum be at idle bcuz i no that this isnt right

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06-01-2006, 12:04 PM

greystreak92

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Not certain on the 89 but my 93 sits at about -12/-14 at idle and drops to about -10/-12 in gear idling.

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