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steering noises at increasing rpm( new pump and fluid)
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<blockquote data-quote="FordTechOne" data-source="post: 1459526" data-attributes="member: 35543"><p>You may have a leak or air trapped in the system that needs to be purged following the Workshop Manual procedure.</p><p></p><p>First, purge the system as follows:</p><p></p><p><em>211-00B Steering System — Hydraulic Power Assist Steering (HPAS)</em> <em>2014 F-150</em></p><p><em>GENERAL PROCEDURES</em> <em>Procedure revision date: 10/25/2013</em></p><p><span style="font-size: 22px"><strong>Power Steering System Purging</strong></span></p><p></p><p>Special Tool(s)</p><p></p><p>Evacuation Cap, Power Steering</p><p>211-265</p><p></p><p>Vacuum Pump Kit</p><p>416-D002 (D95L-7559-A) or equivalent</p><p></p><p>Material</p><p><strong>Item</strong> <strong>Specification</strong></p><p>Motorcraft® MERCON® LV Automatic Transmission Fluid</p><p>XT-10-QLVC (US); CXT-10-LV12 (Canada) MERCON® LV</p><p><strong>NOTICE: If the air is not purged from the power steering system correctly, premature power steering pump failure may result. The condition may occur on pre-delivery vehicles with evidence of aerated fluid or on vehicles that have had steering component repairs.</strong></p><p></p><ol> <li data-xf-list-type="ol"><strong>NOTE: </strong><em>A whine heard from the power steering pump can be caused by air in the system. The power steering purge procedure must be carried out prior to any component repair for which power steering noise complaints are accompanied by evidence of aerated fluid.</em><br /> <br /> Remove the power steering reservoir cap. Check the fluid.</li> </ol> <ol> <li data-xf-list-type="ol">Raise the front wheels off the floor. Refer to the appropriate section in Group 100 for the procedure.</li> </ol> <ol> <li data-xf-list-type="ol">Tightly insert the Power Steering Evacuation Cap into the reservoir and connect the Vacuum Pump Kit</li> </ol> <ol> <li data-xf-list-type="ol">Start the engine.</li> </ol> <ol> <li data-xf-list-type="ol">Using the Vacuum Pump Kit, apply vacuum and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg).<ul> <li data-xf-list-type="ul">If the Vacuum Pump Kit does not maintain vacuum, check the power steering system for leaks before proceeding. For additional information, refer to Power Steering Fluid Leak Test in this section.</li> </ul></li> </ol> <ol> <li data-xf-list-type="ol">If equipped with Hydro-Boost®, apply the brake pedal 4 times.</li> </ol> <ol> <li data-xf-list-type="ol"><strong>NOTICE: Do not hold the steering wheel against the stops for an extended amount of time. Damage to the power steering pump may occur.</strong><br /> <br /> Cycle the steering wheel fully from stop-to-stop 10 times.</li> </ol> <ol> <li data-xf-list-type="ol">Stop the engine.</li> </ol> <ol> <li data-xf-list-type="ol">Release the vacuum and remove the Vacuum Pump Kit and the Power Steering Evacuation Cap.</li> </ol> <ol> <li data-xf-list-type="ol"><strong>NOTE: </strong><em>Do not overfill the reservoir.</em><br /> <br /> Fill the reservoir as needed with the specified fluid.</li> </ol> <ol> <li data-xf-list-type="ol">Start the engine.</li> </ol> <ol> <li data-xf-list-type="ol">Install the Power Steering Evacuation Cap and the Vacuum Pump Kit. Apply and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg).</li> </ol> <ol> <li data-xf-list-type="ol"><strong>NOTICE: Do not hold the steering wheel against the stops for an extended amount of time. Damage to the power steering pump may occur.</strong><br /> <br /> Cycle the steering wheel fully from stop-to-stop 10 times.</li> </ol> <ol> <li data-xf-list-type="ol">Stop the engine, release the vacuum and remove the Vacuum Pump Kit and the Power Steering Evacuation Cap.</li> </ol> <ol> <li data-xf-list-type="ol"><strong>NOTE: </strong><em>Do not overfill the reservoir.</em><br /> <br /> Fill the reservoir as needed with the specified fluid and install the reservoir cap.</li> </ol> <ol> <li data-xf-list-type="ol">Visually inspect the power steering system for leaks.</li> </ol><p>If the system is still noisy, check for leaks using the following procedure:</p><p></p><p><strong>Power Steering Fluid Leak Test</strong></p><p></p><p><strong>NOTE: </strong><em>This test should only be carried out if a leak in the system has not been detected during a thorough visual inspection. Refer to Inspection and Verification.</em></p><p></p><ol> <li data-xf-list-type="ol">Remove the power steering pump reservoir cap and check the power steering fluid level. If necessary, add the specified power steering fluid.</li> </ol> <ol> <li data-xf-list-type="ol">Tightly install the Power Steering Evacuation Cap onto the reservoir and connect the Vacuum Pump Kit to the Evacuation Cap.</li> </ol> <ol> <li data-xf-list-type="ol">Using the Vacuum Pump Kit, apply 68-85 kPa (20-25 in-Hg) of vacuum to the power steering system.</li> </ol> <ol> <li data-xf-list-type="ol">Observe the vacuum gauge for 30 seconds. If the vacuum gauge reading drops more than 3 kPa (0.88 in-Hg), a leak is present.</li> </ol> <ol> <li data-xf-list-type="ol">Remove the Vacuum Pump Kit.</li> </ol> <ol> <li data-xf-list-type="ol">Start the engine and insert the Dial Thermometer into the Evacuation Cap.</li> </ol> <ol> <li data-xf-list-type="ol"><strong>NOTICE: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump may occur.</strong><br /> <br /> With the engine at idle, raise the power steering fluid temperature to 74-80°C (165-176°F) by rotating the steering wheel fully to the left and right several times.</li> </ol> <ol> <li data-xf-list-type="ol">Stop the engine and visually inspect the system for leaks.<ul> <li data-xf-list-type="ul">If a leak is evident, repair as necessary.</li> </ul><ul> <li data-xf-list-type="ul">If a leak is not evident, add the specified UV fluorescent tracer dye to the power steering fluid. Use 14.78 ml (1/2 oz) of dye solution for every 1.89L (2 qt) of power steering fluid.</li> </ul></li> </ol> <ol> <li data-xf-list-type="ol">Start the engine.</li> </ol> <ol> <li data-xf-list-type="ol"><strong>NOTICE: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump may occur.</strong><br /> <br /> With the engine at idle, raise the power steering fluid temperature to 74-80°C (165-176°F) by rotating the steering wheel fully to the left and right several times.</li> </ol> <ol> <li data-xf-list-type="ol">Stop the engine and inspect the system for traces of UV dye using the 100W/12 Volt DC UV Lamp. Repair as necessary.</li> </ol><p>If you don't have a vacuum pump kit, you can also check for leaking hose or connection that is allowing air to be drawn into the system using a different method. The leak often won't be visible as a fluid leak, because the leak is drawing air in as the system is under pressure, not leaking fluid out. The best way to check the system is to spray the hoses, crimps, and fitting with a spray water bottle. If you hear a zap/crack/snap sound when a component is sprayed, the system is drawing in air at that location.</p></blockquote><p></p>
[QUOTE="FordTechOne, post: 1459526, member: 35543"] You may have a leak or air trapped in the system that needs to be purged following the Workshop Manual procedure. First, purge the system as follows: [I]211-00B Steering System — Hydraulic Power Assist Steering (HPAS)[/I] [I]2014 F-150 GENERAL PROCEDURES[/I] [I]Procedure revision date: 10/25/2013[/I] [SIZE=6][B]Power Steering System Purging[/B][/SIZE] Special Tool(s) Evacuation Cap, Power Steering 211-265 Vacuum Pump Kit 416-D002 (D95L-7559-A) or equivalent Material [B]Item[/B] [B]Specification[/B] Motorcraft® MERCON® LV Automatic Transmission Fluid XT-10-QLVC (US); CXT-10-LV12 (Canada) MERCON® LV [B]NOTICE: If the air is not purged from the power steering system correctly, premature power steering pump failure may result. The condition may occur on pre-delivery vehicles with evidence of aerated fluid or on vehicles that have had steering component repairs.[/B] [LIST=1] [*][B]NOTE: [/B][I]A whine heard from the power steering pump can be caused by air in the system. The power steering purge procedure must be carried out prior to any component repair for which power steering noise complaints are accompanied by evidence of aerated fluid.[/I] Remove the power steering reservoir cap. Check the fluid. [/LIST] [LIST=1] [*]Raise the front wheels off the floor. Refer to the appropriate section in Group 100 for the procedure. [/LIST] [LIST=1] [*]Tightly insert the Power Steering Evacuation Cap into the reservoir and connect the Vacuum Pump Kit [/LIST] [LIST=1] [*]Start the engine. [/LIST] [LIST=1] [*]Using the Vacuum Pump Kit, apply vacuum and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg). [LIST] [*]If the Vacuum Pump Kit does not maintain vacuum, check the power steering system for leaks before proceeding. For additional information, refer to Power Steering Fluid Leak Test in this section. [/LIST] [/LIST] [LIST=1] [*]If equipped with Hydro-Boost®, apply the brake pedal 4 times. [/LIST] [LIST=1] [*][B]NOTICE: Do not hold the steering wheel against the stops for an extended amount of time. Damage to the power steering pump may occur.[/B] Cycle the steering wheel fully from stop-to-stop 10 times. [/LIST] [LIST=1] [*]Stop the engine. [/LIST] [LIST=1] [*]Release the vacuum and remove the Vacuum Pump Kit and the Power Steering Evacuation Cap. [/LIST] [LIST=1] [*][B]NOTE: [/B][I]Do not overfill the reservoir.[/I] Fill the reservoir as needed with the specified fluid. [/LIST] [LIST=1] [*]Start the engine. [/LIST] [LIST=1] [*]Install the Power Steering Evacuation Cap and the Vacuum Pump Kit. Apply and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg). [/LIST] [LIST=1] [*][B]NOTICE: Do not hold the steering wheel against the stops for an extended amount of time. Damage to the power steering pump may occur.[/B] Cycle the steering wheel fully from stop-to-stop 10 times. [/LIST] [LIST=1] [*]Stop the engine, release the vacuum and remove the Vacuum Pump Kit and the Power Steering Evacuation Cap. [/LIST] [LIST=1] [*][B]NOTE: [/B][I]Do not overfill the reservoir.[/I] Fill the reservoir as needed with the specified fluid and install the reservoir cap. [/LIST] [LIST=1] [*]Visually inspect the power steering system for leaks. [/LIST] If the system is still noisy, check for leaks using the following procedure: [B]Power Steering Fluid Leak Test[/B] [B]NOTE: [/B][I]This test should only be carried out if a leak in the system has not been detected during a thorough visual inspection. Refer to Inspection and Verification.[/I] [LIST=1] [*]Remove the power steering pump reservoir cap and check the power steering fluid level. If necessary, add the specified power steering fluid. [/LIST] [LIST=1] [*]Tightly install the Power Steering Evacuation Cap onto the reservoir and connect the Vacuum Pump Kit to the Evacuation Cap. [/LIST] [LIST=1] [*]Using the Vacuum Pump Kit, apply 68-85 kPa (20-25 in-Hg) of vacuum to the power steering system. [/LIST] [LIST=1] [*]Observe the vacuum gauge for 30 seconds. If the vacuum gauge reading drops more than 3 kPa (0.88 in-Hg), a leak is present. [/LIST] [LIST=1] [*]Remove the Vacuum Pump Kit. [/LIST] [LIST=1] [*]Start the engine and insert the Dial Thermometer into the Evacuation Cap. [/LIST] [LIST=1] [*][B]NOTICE: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump may occur.[/B] With the engine at idle, raise the power steering fluid temperature to 74-80°C (165-176°F) by rotating the steering wheel fully to the left and right several times. [/LIST] [LIST=1] [*]Stop the engine and visually inspect the system for leaks. [LIST] [*]If a leak is evident, repair as necessary. [/LIST] [LIST] [*]If a leak is not evident, add the specified UV fluorescent tracer dye to the power steering fluid. Use 14.78 ml (1/2 oz) of dye solution for every 1.89L (2 qt) of power steering fluid. [/LIST] [/LIST] [LIST=1] [*]Start the engine. [/LIST] [LIST=1] [*][B]NOTICE: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump may occur.[/B] With the engine at idle, raise the power steering fluid temperature to 74-80°C (165-176°F) by rotating the steering wheel fully to the left and right several times. [/LIST] [LIST=1] [*]Stop the engine and inspect the system for traces of UV dye using the 100W/12 Volt DC UV Lamp. Repair as necessary. [/LIST] If you don't have a vacuum pump kit, you can also check for leaking hose or connection that is allowing air to be drawn into the system using a different method. The leak often won't be visible as a fluid leak, because the leak is drawing air in as the system is under pressure, not leaking fluid out. The best way to check the system is to spray the hoses, crimps, and fitting with a spray water bottle. If you hear a zap/crack/snap sound when a component is sprayed, the system is drawing in air at that location. [/QUOTE]
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steering noises at increasing rpm( new pump and fluid)
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