Line Pressure Test: Notes

Purpose of this test is to check operating conditions of each part by measuring fluid pressure in fluid pressure line.

Line pressure test requires following conditions.

• Automatic fluid is at normal operating temperature (70 - 80 °C / 158 - 176 °F).
• Fluid is filled to proper level (between FULL and LOW on dipstick).
• Air conditioner switch is turned OFF.

1. Apply parking brake securely and place chocks against wheels.
2. Remove fluid pressure check hole plug bolt.
3. Attach oil pressure gauge to fluid pressure check hole in transmission case.

   Special Tool 

   (A): 09925-37811-001 

   CAUTION: After attaching oil pressure gauge, check that no fluid leakage exists.
   Fig 1: Attaching Oil Pressure Gauge To Fluid Pressure Check Hole In Transmission Case

   Courtesy of SUZUKI OF AMERICA CORP.
4. Depress foot brake fully, run engine at idle speed and stall speed then check fluid pressure in "D" or "R" range.
   CAUTION:

   • Do not continue running engine at stall speed longer than 5 seconds.
   • After performing line pressure test, be sure to leave engine running at idle for longer than one minute before performing another line pressure test.

   Automatic transmission line pressure 

   AUTOMATIC TRANSMISSION LINE PRESSURE SPECIFICATION
   
   

   	"D" range	"R" range
   At idle speed	355 - 425 kPa (3.6 - 4.3 kgf/cm2 , 52 - 62 psi)	475 - 575 kPa (4.8 - 5.9 kgf/cm2 , 69 - 83 psi)
   At stall speed	1219 - 1329 kPa (12.4 - 13.6 kgf/cm2 , 177 - 193 psi)	1166 - 1394 kPa (11.9 - 14.2 kgf/cm2 , 169 - 202 psi)

5. If check result is OK, disconnect special tool, then tighten fluid pressure check hole bolt to specified torque.

   Tightening torque 

   Fluid pressure check hole bolt: 8 N.m (0.8 kg-m, 6.0 lbf-ft)