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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 356 (Engine Controls And Fuel - 3.6L (LGX) - DTC P0446 To DTC P3436 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Electronic Ignition System Diagnosis >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

You must perform the Circuit/System Testing before proceeding with Component Testing.

  1. Ignition OFF, connect the EL 26792  to the appropriate T8 Ignition Coil.
  2. Engine Running.
  3. Verify the spark output of the T8 Ignition Coil.
    • If no output or the output is weak 

      Replace the T8 Ignition Coil

    • If the output is good 
  4. All OK.
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