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Chevrolet Silverado / GMC Sierra. Manual - part 1620
Fig. 28: Radiator Outlet Hose To Radiator
Courtesy of GENERAL MOTORS CORP.
1. Using a bent-tip screwdriver or equivalent, pull on one of the open ends of the retaining ring
in order to rotate the retaining ring.
2. Rotate the retaining ring (3) around the quick connector until the retaining ring is out of
position and can be completely removed.
3. Remove the radiator outlet hose (2) from the quick connector fitting at the radiator (1).
Installation Procedure
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 29: Radiator Outlet Hose To Radiator
Courtesy of GENERAL MOTORS CORP.
1. Hook one of the open ends of the retaining ring (3) in one of the slots in the quick
connector.
2. Rotate the retaining ring (3) around the connector until the retaining ring is positioned with
all 3 ears through the 3 slots.
3. Ensure the 3 retaining ring ears can be seen from the inside of the connector and the
retaining ring can move freely in the slots.
4. Install the radiator outlet hose (2) onto the radiator quick connector fitting until a click is
IMPORTANT: Do not install the retaining ring (3) 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
heard or felt.
Pull back on the radiator outlet hose (2) to ensure a proper connection.
RADIATOR VENT INLET HOSE REPLACEMENT (NON-HP2)
Fig. 30: Radiator Vent Inlet Hose (Non-HP2)
Courtesy of GENERAL MOTORS CORP.
ENGINE OIL COOLER PIPE/HOSE QUICK CONNECT FITTING
Callout
Component Name
Preliminary Procedure
1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-
Fill) or Cooling System Draining and Filling (Static Fill).
2. If necessary, remove the air cleaner resonator duct. Refer to Air Cleaner Resonator
Outlet Duct Replacement .
1
Remove Radiator Vent Inlet Hose Clamp (Qty: 2)
2
Remove Radiator Vent Inlet Hose Support Clip (Qty: 2)
3
Radiator Vent Inlet Hose
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Removal Procedure
Fig. 31: Rotating Retaining Ring Using Screwdriver
Courtesy of GENERAL MOTORS CORP.
1. Disengage the plastic caps from the quick connect fittings. Pull the caps back along the pipe.
2. Using a bent-tip screwdriver or equivalent, pull on one of the open ends of the retaining ring
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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