 Vacuum?, 89' 740turbo |
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| Vacuum?, 89' 740turbo |
 Apr 6 2005, 02:16 AM
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#1
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Member  Group: Members Posts: 35 Joined: 29-March 05 Member No.: 4,112 Status:  Location: Big Lake, MN. USA Drives: 89' 740TURBO  |
while checking out my car i decided to check vacuum. i tested 17 inches of manifld vac at a couple of ports, but at the port for the vacuum line that goes to the "T" for pcv i am only getting 10 inches. i cleaned both connections out and replaced the line to no avail. can these intakes and throttle bodies get that dirty inside? also how much vacuum should i be getting. i was planning in changing the intake man gasket anyway so now i will probaly spend some time cleaning the intake, T.B., and idle motor.
once again thanks for your time...dan |
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Apr 6 2005, 10:30 AM
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#2
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 Veteran  Group: Super Mod Posts: 5,795 Joined: 5-November 04 Member No.: 1,295 Status: Location: Fl. Drives: Mustang,1995 Yellow T5-R,1996 850 Trubo |
I looked in my book and can't find any numbers for vaccum.It is possible for the inside of the intake to get dirty.If you want to look for a vaccum leak with it running spray carb cleaner around all connections and gaskets.If the idle changes there is a vaccum leak.
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