I have a 1991 K2500 4/4 Has no balls. Installed vacuum gauge on idle the vacuums fine when I am driving at speed (any) the vacuum is low (11PSI) Is this nornal or what could be my problem ?? I have a I have a 1991 K2500 4/4 Has no balls. Installed vacuum gauge on idle the vacuums fine when I am driving at speed (any) the vacuum is low (11PSI) Is this nornal or what could be my problem ?? I have a new trottle body, new distributor, and removed the cat. Thank you for any answers to help :

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09 Feb, 2018

  • 69%
    Solved this issue
  • 87min
    Time to fix
  • 65%
    Recommend to DIY
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put some gas in a spray bottle. spray throttle body and vacuum line if engine raises found leak
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