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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

vacuum sound

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Old Oct 13, 2008 | 04:29 PM
  #1  
ibornagain's Avatar
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Joined: Sep 2008
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From: Bama
vacuum sound

i'm having trouble solving his problem can you offer advice? the problem is when I press the brake peddle I heard the vacuum sound / air loss sound? the engine gets very little rough idle...once I let go of the brake the sound stops & engine smooths out...

it is a recent rebuild 22r with a carb...i can not find a vacuum leak any where....

thanks for your help...

Last edited by ibornagain; Oct 13, 2008 at 04:32 PM.
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Old Oct 13, 2008 | 04:52 PM
  #2  
abecedarian's Avatar
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Joined: Mar 2008
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From: Temecula Valley, CA
brake booster seal is gone.
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