Vaccuum Gauge Setup

[rescuerandy2]

Trying to get to the bottom of a rough idle after several trips to dealer. Where is a good point to hookup my vaccuun gauge? Thanks, Randy.

[Marauderjack]

Anywhere between the throttle body and intake valves....look on upper manifold for a small vacuum line to pull and plug!! Should read about 18" at idle in Park!!:beer: