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 the following conditions.

• Automatic fluid is at normal operating temperature (70 to 80 °C/158 - 176 °F).
• Fluid is filled to proper level (between FULL HOT and LOW HOT on dipstick).
  1. Apply parking brake securely and place checks against wheels.
  2. Attach oil pressure gauge to fluid pressure check hole (1) in transmission case.

     Special tool 

     (A): 09925-37811-001 

     CAUTION: After attaching oil pressure gauge, check that not fluid leakage exists.
     Fig 1: Identifying Fluid Pressure Check Hole In Transmission Case

     Courtesy of SUZUKI OF AMERICA CORP.
  3. Depress foot brake fully, run engine at idle and stall.
  4. Check fluid pressure in "D" or "R" range within the following specification.
     CAUTION: Do not continue running engine at stall speed longer than 5 seconds.

     Line pressure

     LINE PRESSURE SPECIFICATION
     
     

     Engine running mode	"D" range	"R" range
     At idle speed	4.1 - 4.6 kg/cm2 (58 - 65 psi)	5.4 - 6.0 kg/cm 2 (75 - 85 psi)
     At stall speed	12.0 - 13.5 kg/cm2 (171 - 192 psi)	14.6 - 17.1 kg/cm2 (208 - 243 psi)

  5. If check result is OK, disconnect special tool, then tighten transmission case plug to specified torque.

     Tightening torque 

     Transmission case plug: 7.5 N.m (0.75 kg-m, 5.5 lb-ft)