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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1914 (ENGINE COOLING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSYMPTOMS - ENGINE COOLINGVISUAL/PHYSICAL INSPECTION
2006 Chevrolet Suburban C2500, 6.0 U

Visual/Physical Inspection

2006 Chevrolet Suburban C2500, 6.0 USECTION Visual/Physical Inspection
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

Use the connector test adapter kit EL-35616-F for any test that requires probing the following items:

  • The control module harness connectors
  • The electrical center fuse/relay cavities
  • The component terminals
  • The component harness connector

Using this kit will prevent damage caused by the improper probing of connector terminals.

Several of the symptom procedures call for a careful visual and physical inspection. This can lead to correcting a condition without further tests and can save time. This inspection should include the following areas:

  • Ensure that the control module grounds are clean, tight, and correctly located.
  • Inspect cooling system hoses and pipes for splits, kinks, and proper connections. Inspect thoroughly for any type of a leak or a restriction.
  • Inspect for a dirty or restricted radiator and HVAC condenser.
  • Inspect for aftermarket devices which could affect the operation of the Cooling System.
  • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
  • Inspect the surge tank reservoir for the proper coolant level.
RENDER: 1.0x

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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.