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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 4 (ENGINE CONTROLS - SELF-DIAGNOSTICS - 4.3L)INSPECTION/MAINTENANCE PROCEDURESINSPECTION/MAINTENANCE AIR SYSTEM SET PROCEDUREPROCEDURE
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Inspection/Maintenance Air System Set Procedure: Procedure

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Procedure
WARNING: This page is about a different variant/trim than selected.
  1. Perform INSPECTION/MAINTENANCE SYSTEM CHECK . After performing inspection/maintenance system check, go to next step.
    2. WARNING: Road test vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury and vehicle damage.
  2. Verify vehicle is within enable criteria. Turn off all of accessories. Start engine and allow idle for 2 minutes. Accelerate at part throttle to 45 MPH. Maintain this speed for 3 minutes, or until I/M SYSTEM STATUS indicator updates to YES. Using scan tool, review I/M SYSTEM STATUS display. If AIR system status updated to YES, go to step  5. If AIR system status did not update to YES, go to next step.
  3. Using scan tool, observe DTC information. If scan tool indicates any failed DTCs, see DIAGNOSTIC TROUBLE CODE INDEX table under DIAGNOSTIC TROUBLE CODE DEFINITIONS. If scan tool does not indicate any failed DTCs, go to next step.
  4. Using scan tool, monitor DTC P0410. Operate vehicle within code enable criteria for DTC P0410. See DTC P0410: AIR INJECTION SYSTEM  under DIAGNOSTIC TESTS. Operate vehicle within code enable criteria until scan tool indicates diagnostic test has run. Using scan tool, observe I/M SYSTEM STATUS. If AIR SYSTEM STATUS is YES, go to next step. If AIR SYSTEM STATUS is not YES, see DIAGNOSTIC AIDS .
  5. Using scan tool, observe emission related DTC portion of I/M SYSTEM STATUS display. If scan tool indicates any emission related DTCs, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . If scan tool does not indicate emission related DTCs, system is okay.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.