Auto Repairing 2003-2005 Ford Excursion 6.0L Diesel Cooling System Contamination Flush Procedure
Issue some 2003-2005 excursion, 2003-2007 f-super duty and 2004-2008 e-series vehicles equipped with a 6.0l engine may experience engine oil, transmission fluid or diesel fuel contaminating the cooling system. This flushing procedure is to be performed after the source of the cooling system contamination has been identified and repaired. Action follow the service procedure steps to correct the condition. Service procedure follow the steps in sequence to effectively repair the vehicle: • draincooling system contaminates. • clean cooling system with simple green® heavy duty cleaner and degreaser. • clean cooling system with motorcraft® engine cooling system iron cleaner. Note all steps must be completed in order to properly clean thecooling system. Any deviation from the service procedure will result in shortened coolant protection against corrosion in thecooling system.
1. Determine cooling system condition. Is the contaminated coolant in a flowable, liquid or milky state? A. No – do not proceed as this procedure does not apply. (non-flushable examples figures 1-3) 2. Fabrication – prior to starting the flush procedure, obtain the following items. Quantity 3 gal. 2 simple green® heavy-duty cleaner and degreaser heater hose 3/4″ (19 mm) diameter hose by 24″ (61 cm) long garden hose 5/8″ (16 mm) or 3/4″ (19 mm) diameter hose clamps number 12 hosecoupling adaptors 3″ (7.6 cm) to 4″ (10 cm) in length * using 5/8″ (16 mm) garden hose – use 5/8″ (16 mm) x 3/4″ (19 mm)coupling adaptors * using 3/4″ (19 mm) garden hose – use 3/4″ (19 mm) x 3/4″ (19 mm) coupling adaptors 1 6 3 locally obtained supplies description a. Obtain two (2) hose coupling adapters and one (1) garden hose. The garden hose can be either a 5/8″ or 3/4″. The couplings can be 5/8″ x 3/4″ or 3/4″ x 3/4″ depending on the size garden hose used. On the vehicle the hose and thermostat ports are 3/4″ in size. (figure 6) figure 6 – article 08-23-1 b. Using a 3/4″ coupling adapter and hose clamps, cut the garden hose to length (the hose must reach from the vehicle to a fresh water supply faucet). Attach a 2′ (61 cm) length of heater hose to the garden hose to be used as the fresh water supply. (the heater hose will prevent kinking at the tight area of the engine compartment). (figure 7)
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