RM35X0E _55 Steering _078944 POWER ASSIST SYSTEMS _0389111 VANE PUMP(for 7GR-FKS(w/o Variable Flow Control Solenoid Valve)) G

POWER ASSIST SYSTEMS VANE PUMP(for 7GR-FKS(w/o Variable Flow Control Solenoid Valve)) ON-VEHICLE INSPECTION

PROCEDURE

Hide Display 1.INSPECT DRIVE BELT

Click hereEngine / Hybrid System>7GR-FKS (ENGINE MECHANICAL)>DRIVE BELT>ON-VEHICLE INSPECTION201902,999999,_51,_078603,_0381338,RM100000001FZOW,

Hide Display 2.BLEED AIR FROM POWER STEERING SYSTEM

NOTICE:: Do not allow foreign matter in the oil reservoir sub-assembly.

Check the fluid level.

Jack up the front of the vehicle and support it with stands.

Turn the steering wheel.

With the engine stopped, turn the steering wheel slowly from lock to lock several times.

Lower the vehicle.

Start the engine. Run the engine at idle for a few minutes.

Turn the steering wheel.

With the engine idling, turn the steering wheel to the left or right full lock position and hold it there for 2 to 3 seconds. Then turn the steering wheel to the opposite full lock position and hold it there for 2 to 3 seconds.

ii.

Repeat the step above several times.

Stop the engine.

0.323,0.24 1.135,0.427 0.813,0.188 10 false *a 2.135,0.24 3.094,0.427 0.958,0.188 10 false *b

*a	Correct
*b	Incorrect

Check for foaming or emulsification. If the system has to be bled twice because of foaming or emulsification, check for fluid leaks in the system.

Check the fluid level.

Hide Display 3.CHECK FLUID LEVEL

NOTICE:: Do not allow foreign matter in the oil reservoir sub-assembly.

Keep the vehicle level.

With the engine stopped, check the power steering fluid level in the oil reservoir. If necessary, add power steering fluid.

Power steering fluid:: Automatic transmission fluid DEXRON II or III or equivalent

HINT:: If the fluid is hot, check that the fluid level is within the HOT range on the oil reservoir. If the fluid is cold, check that the fluid level is within the COLD range.

Start the engine and run it at idle.

Turn the steering wheel to the left or right full lock position, and then turn the steering wheel to the opposite full lock position. Repeat this several times to raise the fluid temperature.

Standard fluid temperature:: 80°C (176°F)

0.323,0.24 1.135,0.427 0.813,0.188 10 false *a 2.135,0.24 3.094,0.427 0.958,0.188 10 false *b

*a	Correct
*b	Incorrect

Check for foaming or emulsification. If foaming or emulsification is identified, bleed air from the power steering system.

0.708,1.792 0.948,1.979 0.24,0.188 10 false *a 2.469,1.792 2.719,1.979 0.25,0.188 10 false *b 1.427,0.448 1.688,0.625 0.26,0.177 10 false *c

*a	Engine idling
*b	Engine stopped
*c	5 mm or less

With the engine idling, measure the fluid level in the oil reservoir.

Stop the engine.

Wait a few minutes and remeasure the fluid level in the oil reservoir.

Maximum fluid level increase:: 5 mm (0.197 in.)

If a problem is found, bleed air from the power steering system.

Check the fluid level.

Hide Display 4.CHECK STEERING FLUID PRESSURE

Disconnect the pressure feed tube.

Click hereSteering>POWER ASSIST SYSTEMS>VANE PUMP (for 7GR-FKS(w/o Variable Flow Control Solenoid Valve))>REMOVAL201902,201906,_55,_078944,_0389111,RM100000001H5XA_04_0011,201906,999999,_55,_078944,_0389111,RM100000001IGOP_04_0011,

Connect SST as shown in the illustration below.

SST: 09640-10011 (09641-01010, 09641-01030, 09641-01040)

0.865,1.281 1.083,0.75 1.083,0.75 1.25,0.75 true 2.667,2.833 2.833,2.833 2.833,2.833 3.031,2.208 true 4.25,3.25 4.583,3.5 4.583,3.5 4.75,3.5 true 3.948,1.885 4.51,2.198 4.51,2.198 4.646,2.198 true 4.833,3.417 5.146,3.573 0.313,0.156 10 false *1 5.854,0.26 6.083,0.5 0.229,0.24 10 false *2 2.406,2.75 2.646,2.948 0.24,0.198 10 true *3 5.885,2.76 6.115,3 0.229,0.24 10 false *2 0.313,1.521 0.542,1.677 0.229,0.156 10 false *a 1.042,1.552 1.271,1.708 0.229,0.156 10 false *b 1.313,0.656 1.708,0.896 0.396,0.24 10 false SST 4.688,2.094 4.927,2.292 0.24,0.198 10 true *3

*1	Pressure Feed Tube	*2	Attachment
*3	Gasket	-	-
*a	In	*b	Out

NOTICE:: Check that the valve of SST is in the open position.

Bleed air from the power steering system.

NOTICE:: Check the level of power steering fluid and refill as necessary.

Start the engine and run it at idle.

Turn the steering wheel to the left or right full lock position. Then turn the steering wheel to the opposite full lock position. Repeat this several times to raise the fluid temperature.

Standard fluid temperature:: 80°C (176°F)

0.448,0.885 0.656,1.063 0.208,0.177 10 false *1 2.708,1.542 2.958,1.719 0.25,0.177 10 false *3 2.708,0.271 2.927,0.438 0.219,0.167 10 false *2 1.344,1.042 1.656,1.25 0.313,0.208 10 false *a 1.531,1.896 1.896,2.104 0.365,0.208 10 false SST

*1	Rack and Pinion Power Steering Gear Assembly
*2	Oil Reservoir
*3	Vane Pump Assembly
*a	Closed

With the engine idling, close the valve of SST and observe the reading on SST.

Maximum fluid pressure:: 10000 to 10700 kPa (102.0 to 109.1 kgf/cm², 1450 to 1551 psi)

NOTICE:: ·

Do not keep the valve closed for more than 10 seconds.

·

Do not let the fluid temperature become too high.

If the pressure is above the maximum, check for fluid leaks and replace parts as necessary.

0.438,0.896 0.656,1.073 0.219,0.177 10 false *1 1.531,1.885 1.896,2.094 0.365,0.208 10 false SST 1.354,1.052 1.771,1.26 0.417,0.208 10 false *a 2.708,0.26 2.906,0.427 0.198,0.167 10 false *2 2.698,1.542 2.927,1.708 0.229,0.167 10 false *3

*1	Rack and Pinion Power Steering Gear Assembly
*2	Oil Reservoir
*3	Vane Pump Assembly
*a	Open

With the engine idling, fully open the valve.

Measure the fluid pressure at engine speeds of 1000 rpm and 3000 rpm.

Standard fluid pressure difference:: 490 kPa (4.99 kgf/cm², 71 psi) or less

NOTICE:: Do not turn the steering wheel.

If the pressure difference is not within the specified range, check for fluid leaks and replace parts as necessary.

2.708,0.281 2.99,0.458 0.281,0.177 10 false *2 2.708,1.542 2.938,1.729 0.229,0.188 10 false *3 1.521,1.896 1.948,2.094 0.427,0.198 10 false SST 1.344,1.063 1.75,1.26 0.406,0.198 10 false *a 0.438,0.906 0.792,1.156 0.354,0.25 10 false *1 1.563,0.479 1.906,0.677 0.344,0.198 10 false *b

*1	Rack and Pinion Power Steering Gear Assembly
*2	Oil Reservoir
*3	Vane Pump Assembly
*a	Open
*b	Steering wheel to the full lock position

With the engine idling and the valve fully opened, turn the steering wheel to the full lock position.

Maximum fluid pressure:: 10000 to 10700 kPa (102.0 to 109.1 kgf/cm², 1450 to 1551 psi)

NOTICE:: ·

Do not keep the steering wheel in the lock position for more than 10 seconds.

·

Do not let the fluid temperature become too high.

If the pressure is above the maximum, check for fluid leaks and replace parts as necessary.

Disconnect SST.

Connect the pressure feed tube.

Click hereSteering>POWER ASSIST SYSTEMS>VANE PUMP (for 7GR-FKS(w/o Variable Flow Control Solenoid Valve))>INSTALLATION201902,201906,_55,_078944,_0389111,RM100000001H5XE_02_0002,201906,999999,_55,_078944,_0389111,RM100000001IGOQ_02_0002,

Bleed air from the power steering system.

NOTICE:: Check the level of power steering fluid and refill as necessary.

Hide Display 5.CHECK STEERING RESISTANCE

Center the steering wheel.

Remove the steering pad.

Start the engine and run it at idle.

Measure the steering resistance in both directions.

Standard steering resistance (Reference):: 6.0 N*m (61 kgf*cm, 53 in.*lbf)

HINT:: The tire type, tire pressure and type of surface beneath the vehicle should be taken into consideration before making your diagnosis.

Install the steering pad.