PS Fluid Flush
#1
03-17-2012, 12:36 PM
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PS Fluid Flush
On my 04 F350 DRW V10, the return line for the power steering fluid at the resevoir is the smaller of the 2 lines-correct? So a good way to flush the system would be to follow that smaller hose down to the little cooler, and break the line there at the fitting. Then start the truck and have a helper pour fluid into the resevoir, while I stay under the truck and direct all the used fluid into a pan. Sounds good, right?
#3
03-17-2012, 04:50 PM
I found some V10 specific instructions.
Originally Posted by FORD Service Manual
WARNING: Do not mix oil types. Any mixture or any unapproved oil can lead to seal deterioration and leaks. A leak can ultimately cause loss of fluid, which can result in a loss of power steering assist.
Remove the fuel pump fuse to prevent engine starting.
Remove the bolt. Position the evaporative emissions canister (EVAP canister) (9D653) out of the way.
Disconnect the power steering return hose. Plug the reservoir fitting.
Attach an extension hose between the power steering return hose and an empty container.
Raise the front wheels off the floor.
Fill the reservoir.
CAUTION: Do not crank the engine for more than 15 seconds at a time. Allow the starter to cool for 1 minute before cranking again. Premature starter failure can occur.
CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump could occur.
• Turn the steering wheel from stop-to-stop while cranking the engine until the fluid exiting the power steering return hose is clear of all contamination and foreign material.
• Fill the reservoir.
Lower the vehicle.
Disconnect the extension hose from the power steering return hose. Remove the plug. Attach the power steering return hose to the reservoir.
CAUTION: Do not overfill the reservoir.
• Fill the reservoir.
Install the evaporative emissions canister and the bolt.
Install the fuel pump fuse.
CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump could occur.
• Start the engine and turn the steering wheel from stop-to-stop.
NOTE: If the power steering system is noisy and accompanied by evidence of aerated fluid it will be necessary to purge the power steering system.
• Check the power steering fluid level.
Remove the fuel pump fuse to prevent engine starting.
Remove the bolt. Position the evaporative emissions canister (EVAP canister) (9D653) out of the way.
Disconnect the power steering return hose. Plug the reservoir fitting.
Attach an extension hose between the power steering return hose and an empty container.
Raise the front wheels off the floor.
Fill the reservoir.
CAUTION: Do not crank the engine for more than 15 seconds at a time. Allow the starter to cool for 1 minute before cranking again. Premature starter failure can occur.
CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump could occur.
• Turn the steering wheel from stop-to-stop while cranking the engine until the fluid exiting the power steering return hose is clear of all contamination and foreign material.
• Fill the reservoir.
Lower the vehicle.
Disconnect the extension hose from the power steering return hose. Remove the plug. Attach the power steering return hose to the reservoir.
CAUTION: Do not overfill the reservoir.
• Fill the reservoir.
Install the evaporative emissions canister and the bolt.
Install the fuel pump fuse.
CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump could occur.
• Start the engine and turn the steering wheel from stop-to-stop.
NOTE: If the power steering system is noisy and accompanied by evidence of aerated fluid it will be necessary to purge the power steering system.
• Check the power steering fluid level.
#5
03-19-2012, 02:15 PM
#6
03-19-2012, 02:48 PM
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So the diesel flushing procedure will not work on the V10.
#7
03-19-2012, 04:40 PM
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#10
03-19-2012, 07:28 PM
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diesels make an inadequet amount of vaccum, so the hydro boost system was developed to work off the p/s pump. ford has elected to use this system on there diesel trucks
#12
03-19-2012, 09:22 PM
#14
03-24-2012, 10:02 AM
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On my 04 F350 DRW V10, the return line for the power steering fluid at the resevoir is the smaller of the 2 lines-correct? So a good way to flush the system would be to follow that smaller hose down to the little cooler, and break the line there at the fitting. Then start the truck and have a helper pour fluid into the resevoir, while I stay under the truck and direct all the used fluid into a pan. Sounds good, right?
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