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Chevrolet Silverado / GMC Sierra. Manual - part 1621
in order to rotate the retaining ring.
3. Rotate the retaining ring around the quick connector until the retaining ring is out of
position and can be completely removed.
Discard the retaining rings.
Fig. 32: View Of Engine Oil Cooler Line Connections
Courtesy of GENERAL MOTORS CORP.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
4. Remove the engine oil cooler line from the quick connector fitting at the radiator.
Pull the lines straight out from the connectors.
5. Clean all of the components in a suitable solvent, and dry them with compressed air.
6. Inspect the fittings, the connectors, the cooler lines, and the cooler for damage, distortion, or
restriction. Replace parts as necessary.
Installation Procedure
Fig. 33: View Of Retaining Ring & Quick Connector
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Courtesy of GENERAL MOTORS CORP.
1. Install a new retaining ring into each quick connector fitting.
Fig. 34: Hooking Retaining Ring
Courtesy of GENERAL MOTORS CORP.
2. Hook one of the open ends of the retaining ring in one of the slots in the quick connector.
IMPORTANT: When performing the following procedure, do not reuse the
old retaining rings. Replace the old retaining rings with new
ones.
Do not install the new retaining ring onto the fitting by
pushing the retaining ring down over the fitting.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 35: View Of Retaining Ring & Connector
Courtesy of GENERAL MOTORS CORP.
3. Rotate the retaining ring around the connector until the retaining ring is positioned with all
3 ears through the 3 slots.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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