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HOMESERVICE MANUALSCHEVROLET1997CHEVY EXPRESS G3500, VAN CARGO, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 93 (INSTRUMENT PANEL (P SERIES))SYSTEM TESTSINTRODUCTION
1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 F

System Tests: Introduction

1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 FSECTION Introduction
WARNING: This page is about a different car, the 1997 GMC Vandura, 1997 GMC Forward Control, 1997 Chevrolet Forward Control, and 1997 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For connector terminal identification, see Fig 1 . For terminal wire color identification, see WIRING DIAGRAMS  . For further speedometer testing, see Vehicle Speed Sensor (VSS) related codes in appropriate TESTS W/CODES article in ENGINE PERFORMANCE section:
CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION section before disconnecting battery.
RENDER: 1.0x

NO RELATED

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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.