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7.3L Power Apoplexy Coolant Flush

7.3L Power Stroke Coolant Affluent & Cooling Organisation Serve Guide

Cooling system drop can lead to sludge and buildup in the radiator and engine water jackets. Same locomotive vegetable oil, coolant breaks down over time and certain compounds, especially silicates, precipitate impossible of abatement and begin to collect. This process not only decreases the thermal efficiency of the cooling scheme but threatens to clog radiators, oil coolers, heater cores, etc. The only agency to invalidate so much conditions is to flush and service the cooling organization routinely as requested in the OEM upkee schedule.

Ford recommends servicing the chilling system ab initio at 50,000 miles and at 30,000 mile/36 calendar month intervals thereafter. A elemental cooling serving should include a flush (with or without the use of a cleansing solution) and replacement of the upper/lower radiator hoses, radiator cap, and thermostat. Additionally, the cooling should be thoroughly flushed with a chemical treatment anytime oil or fire is found mixed with the coolant, such as in instances where an oil cooler or injector cup has failed.

7.3L Power Stroke Coolant Selection

We typically use standard Motorcraft VC-5 ethylene ethanediol engine coolant in the 7.3L Power Slash. Converting to an ELC is desirable, but the 7.3L Exponent Cerebrovascular accident is typically less sensitive to coolant type than engines much as the 6.0L Mogul Stroke and early IDI motors. If you prefer to ascent to an ELC (extended lifespan coolant) to reduce future service costs, it is imperative that the cooling system is exhaustively flushed first. While the 7.3L Power Stroke doesn't broadly give cavitation issues, we highly recommend adding a SCA/DCA (diesel coolant summative/supplemental coolant additive) to the engine cooling system if not victimization a pre-charged ELC. The SCA/DCA take down should embody checked and familiarized habitually between services.

ELCs are typically found in spiritualist and heavy tariff diesel applications. Their service life is typically in the 300,000 to 600,000 mile range, meaning they are Sir Thomas More resilient to caloric breakdown and contamination. ELC options that we've used with not bad winner include Beat out Rotella ELC, Plate Rotella Ultra ELC, and Fleetguard OAT ELC. World likewise has their own ELC, but it can be unmanageable to locate a dealer. If you're going through the trouble of converting to an ELC, select a silicate free coolant.

7.3L King Stroke Coolant Flush Procedures

The procedures below are being performed on a 1994 - 1997 generation Ford F-Series. While the engine cooling system is slightly different on later 1999 - 2003 model year engines, the procedures are altogether compatible with all 7.3L Power Diagonal diesels.

We tend to recommend avoiding generic over-the-counter flush/cleaning solutions that available at your local auto parts store. The OEM solution is Henry Ford VC-1 Premium Cooling system System Flush; it's hard to drop dead wrongheaded with the product formed by Ford for Ford vehicles. Fleetguard Restore (CC2601) also comes highly recommended as it is formulated to remove silicate gel (buildup), inunct, and fuel remnants.

The flush/service procedures below are time consuming as they do not require draining the engine block and therefore do non completely run out the system instantly. Instead, they simply off the old coolant by way of a series of distilled water flushes. After enough flush cycles, the amount of old engine coolant remaining in the cooling system will be minimal at best. Plan on purchasing in the ballpark of 20 gallons of distilled water. Tap urine should never be used in a cooling - it contains particulates, minerals, and chemicals that do not belong in with your engine coolant.

Part with Numbers for Cooling Service

Part Description	Part with Number		Notes
Upper radiator hose	1994.5 - 1997	Motorcraft KM2989	1999 - 2003 single alternator only
Upper radiator hose	1999 - 2003	Motorcraft KM4495	1999 - 2003 single alternator only
Lower radiator hose	1994.5	Gates 21405	N/A
	1995 - 1997	William Henry Gates 22216
	1999 - 2000	Motorcraft KM4542
	2001 (before 4/29/01)	Motorcraft KM4542
	2001 (after 4/29/01)	Motorcraft KM4671
	2002 - 2003	Motorcraft KM4671
Thermoregulator	1994.5 - 1995	Ford F4TZ-8575-CB	Thermostats not interchangeable between all model years
Thermoregulator	1996 -2003	Ford F6TZ-8575-EA	Thermostats not interchangeable between all model years
Thermostat housing	1994.5 - 1997	John Ford F4TZ-8592-Associate in Arts	Put back if overweening scale/build ahead/indentation at mounting flange
Thermostat housing	1999 - 2003	Henry Ford F81Z-8592-AA
Thermoregulator lodging gasket	1994.5 - 1995	Ford Hermann Hueffer F4TZ-8255-A Victor Reinz C32036	1996 - 2003 thermostat includes gasket
Thermoregulator lodging gasket	1996 - 2003	Motorcraft RG602	1996 - 2003 thermostat includes gasket
Radiator overflow/degas bottle cap	John Ford 9C3Z-8101-B		Forever replace during cooling system service of process; seal typically hardens, cracks, etc.
Ford ethanediol congregate engine coolant	Motorcraft VC-5 concentrated railway locomotive coolant		4 gallons required, procedures below only matched with concentrated coolant, not premixed William Green coolant.
Ford temperature reduction system flush solution	Motorcraft VC-1 Superior Cooling System Bloom		"Fast flush" solution
Ford SCA/DCA coolant additive	Motorcraft VC-8 diesel cooling additive		Facultative, advisable w/ Ford coolant

A concentrated engine coolant essential be used in order to acquire a proper 50/50 coolant-distilled water ratio. It is insurmountable to accomplish the proper ratio using a premixed locomotive engine coolant with these procedures.

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7.3L Power Stroke radiator drain valve location

• The radiator drainpipe valve/petcock is settled at the bottom of the radiator along the driver side. Attach a section of 3/8" heater hose Oregon fuel crease to the petcock so that information technology bathroom beryllium drained without running down the radiator crossmember.

• Drain the radiator into a suitable drain pan (minimum 4 gallons).

7.3L Power Stroke coolant reservoir

• Fulfill the cooling system with distilled water through with the coolant overflow reservoir/degas nursing bottle. Filling to the cold fill line, do non overfill the system.

• Start and fly the coop the locomotive engine, allowing it to reach full operational temperature. You may need to admit the truck for a short drive in order to reach operating temp.

• Aft pouring engine at operating temporary for a lower limit 5 minutes, shut off locomotive engine and allow to cool. Drain the cooling organization once more, and then fulfil with distilled H2O.

• Once again tolerate the locomotive engine to reach and run at operating temperature for a minimum 5 minutes, so debilitate the engine cooling system.

• Tot a cleaning/flush solution per the product's instructions. Allow for locomotive engine to run at operative temperature per production's instructions. Fleetguard Restore requires running the engine for a minimum 60 and maximum 90 minutes at normal operating temperature.

• Drain cooling scheme one time locomotive engine has cooled suitably. Fill scheme with distilled water. Repeat the drainage, fulfil, ladder process a minimum 3 more multiplication ready to completely outpouring any left engine coolant and cleaning solvent.

• Afterwards 3 waste pipe, fill, rivulet cycles, assess the color of the chilling system as it drains. The goal to have a cooling organization that is all full with clean distilled water and only negligible amounts of engine coolant. If the cooling system does not drain serene, repeat the flush process (replenish, run, drain) until the cooling drains clear. Information technology typically takes us a total of 7 trials from start to fetch up.

• If the cooling system system drains clear, do not refill and continue to service the engine cooling system. The system will constitute refilled and balanced with a 50/50 distilled water, engine coolant mixture after the service has been completed.

Coolant reservoir removal

• Remove the coolant overflow reservoir/Hilaire Germain Edgar Degas bottle. Clean it with a baking soda solution and Lashkar-e-Taiba it sit for an hour, periodically shaking the resolution in the tank. Next, clean and rinse the tank with dish soap.

• Reinstall the coolant overflow reservoir/degas bottle once every last the soap and baking soda has been all washed out. Install a new cap - do not reprocess the superannuated one.

Upper radiator hose

• Remove the upper radiator hosepipe, which connects the recess at the top of the radiator (driver side) to the thermostat living accommodations vent (front of engine).

Thermostat housing gasket

• Murder the (3) bolts holding the thermostat housing to the locomotive engine block with an 8 millimetre socket. The seat bolt is difficult to approach, but you can buoy remove them totally with a 1/4" drive ratchet and a serial publication of extensions.

• Pull the thermoregulator caparison straight up to separate it from the engine block.

• Remove and throw out the used thermostat. Note its orientation and install the late thermostat. Clean the block mounting surface if necessary.

Cleaing thermostat housing

• The thermostat living accommodations should glucinium cleaned inside and out of any scale, rust, or build up before being reinstalled. In our case, a conducting wire wheel was used to clean the mounting surfaces (hose down on one closing, flange on the other). We then used a brake cylinder hone to remove the exfoliation and buildup indoors the neck of the lodging. Take out leftover junk with water and/operating theater a soft resolvent wish bracken cleansing agent.

7.3L Power Stroke thermostat

• Reinstall the thermostat housing. Atomic number 14 is not necessary - if you purchased a Motorcraft thermoregulator a gasket is incorporated into the outer edge in of the thermoregulator.

• Install the surrogate radiator hose.

Lower radiator hose

• Remove the lower radiator hose. It connects the radiator to the water ticker. The coolant overflow reservoir/degas bottle too intersects this pipe.

• Instal the replacement radiator hose down.

Engine coolant, flush solution, and distilled water

• The cooling system capacity happening 1994.5 - 1998 F-Serial publication trucks ("OBS") is 7.24 gallons or 29 quarts. The cooling system capacity on 1999 - 2003 F-Series Super Duty trucks is 8.2 gallons or 32.75 quarts.

Note - verify the radiator run out valve is closed before proceeding.

1994.5 - 1998: Tot up 3.6 gallons (14.5 quarts) of undiluted engine coolant, then replete the system with distilled water until the level reaches the scoring on the overflow tank car/Degas bottleful. Add SCA/DCA if desired.

1999 - 2003: Add 4.1 gallons (16.4 quarts) of concentrated locomotive engine coolant, past fill the system with distilled water until the level reaches the marking on the bubble over tank/Hilaire Germain Edgar Degas bottle. Supply SCA/DCA if desired.

Reinstall the overflow tank/degas bottle cap and start the engine. After bringing the locomotive engine to operational temperature, allow the engine to air-cooled and recheck fluid level. If necessary, add distilled water. Do NOT add coolant, the cooling system system has already been filled with the correct amount of concentrated coolant to reach a 50/50 mix.

Please recycle wholly used engine coolant responsibly.