LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2022 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (5 Of 5)) >> Diagnostic Information and Procedures >> Fuel System Diagnosis - High Pressure Side >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
    NOTE:

    Do NOT perform this procedure unless directed here from another procedure.

  1. Engine - Cranking - For 10 s

    Verify the function: Engine = Running

    • If the function does not work 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the function works 
  2. Ignition/Vehicle - Off
  3. Verify the condition does not exist: Fuel - Contaminated/Poor Quality - Refer to: Contaminants-in-Fuel Diagnosis 
    • If a condition exists 

      Repair or replace as necessary

    • Go to next step: If no condition exists 
  4. Engine - Running

    Verify the following conditions do not exist:

    • Engine - Misfire/Reduced Engine Power/Stalling
    • Engine Speed - Rough/Unstable
    • Exhaust - Excessive Smoke
    • If a condition exists 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If no condition exists 
  5. Refer to: Symptoms - Engine Controls