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New help with chevy silverado

Discussion in 'The Coffee Shop ~ Chit Chat' started by Ryan silvani, Jan 18, 2014.

  1. Ryan silvani

    Ryan silvani New Member

    Truck has been running lean change mass senser and still running lean to much air not enough gas
  2. 99'HEARTBEAT

    99'HEARTBEAT Epic Member Staff Member 5+ Years ROTM Winner 1000 Posts Platinum Contributor


    Ryan, you need to check for a Vacuum Leak.....check all Vacuum and PCV Hoses, check All Hoses and Connections at the Air Intake System, and also test the Intake Manifold Gaskets for Leakage.

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