Checking Relief Oil Pressure

CAUTION: Before starting work, confirm that the belt tension is within specification. Refer to [CHECKING DRIVE BELTS ] (QR25DE), [CHECKING DRIVE BELTS ] (VQ40DE).

Connect the Tool between the power steering oil pump discharge connector and the high pressure hose, then bleed the air from the hydraulic circuit. Refer to [AIR BLEEDING HYDRAULIC SYSTEM ].

Fig 1: Checking Relief Oil Pressure

Courtesy of SUZUKI OF AMERICA CORP.

TOOL REFERENCE CHART

Tool number:
Pressure gauge and shut-off valve		KV48103500 (J-26357 and J-26357-10)
Oil pump side	Connector A and O-ring	KV48105300-4 and 5295262U10 (-)
Oil pump side	Eye-bolt and O-ring	KV48105300-3 and 5295262U00 (-)
High pressure piping side	Connector B and O-ring	KV48105300-1 and 5295262U00 (-)
High pressure piping side	Nut	KV48105300-2 (-)

Start the engine. Run the engine until the power steering fluid temperature reaches 50°- 80°C (122°- 176°F).
CAUTION:
- Warm up the engine with the shut-off valve fully opened. If the engine is started with the shut-off valve closed, fluid pressure in the power steering oil pump increases to maximum pressure. This will raise fluid temperature excessively.
- Do not contact the belt with the hose while the engine is running.
With the engine at idle, close the shut-off valve and read the relief oil pressure.
Relief oil pressure Refer to [ Service Data and Specifications ].

CAUTION: Do not close the shut-off valve of the pressure gauge for more than 10 seconds.
After measurement, open the shut-off valve slowly.
- If relief oil pressure is outside the specification, replace the power steering oil pump. Refer to [POWER STEERING OIL PUMP: REMOVAL AND INSTALLATION ].
After inspection, disconnect the oil pressure gauge and oil pressure gauge adapter from the hydraulic circuit, then connect the power steering oil pump discharge connector. Add fluid and bleed the air from the hydraulic circuit thoroughly. Refer to [AIR BLEEDING HYDRAULIC SYSTEM ].