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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

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    Truck has been running lean change mass senser and still running lean to much air not enough gas
    #1
  2. 99'HEARTBEAT

    99'HEARTBEAT Moderator

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    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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