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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1417 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSENGINE OIL COOLER CONNECTOR REPLACEMENT
2006 Chevrolet Suburban C2500, 6.0 U

Engine Oil Cooler Connector Replacement

2006 Chevrolet Suburban C2500, 6.0 USECTION Engine Oil Cooler Connector Replacement
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Engine Oil Cooler Connector
GM2150416Courtesy of GENERAL MOTORS CORP.
Callout Component Name

Preliminary Procedures

  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill)  or Cooling System Draining and Filling (Static Fill) .
  2. Remove the engine oil cooler pipe from the oil cooler fittings on the radiator. Refer to Engine Oil Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  3. Do not remove the upper and lower engine oil cooler fittings from the radiator at the same time otherwise the engine oil cooler may fall inside the radiator end tank.
1 Engine Oil Cooler Fitting
CAUTION: Refer to Fastener Caution .

Procedure: 
Remove the plastic caps from the quick connect fittings by pulling the caps back along the pipe before installation.
Tip:  The correct thread engagement is critical. Cross-threaded fittings can achieve proper tightness and still leak.

Tighten:  24 N.m (18 lb ft)
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.