Nissan Skyline R34 workshop service manual page 69

text version of content this owner's manual page from owners manual to the vehicle Nissan Skyline, year of production 1998 - 2002:

TROUBLE DIAGNOSES Line Pressure Test (Cont'd) JUDGEMENT OF LINE PRESSURE TEST Judgement Possible causes Pressure supply system malfunction or low oil pump output Examples: 0 Oil pump wear Line pressure is low in all Control piston damage positions. Pressure regulator valve or plug sticking, and weak spring Eg Fluid pressure leakage between oil strainer and pressure regulator valve through oil Pump Low idle speed At idle Line pressure is low in par- After line pressure is supplied from manual valve, fluid pressure may leak between devices speed ticular position. or circuits of corresponding position. El 1 Malfunctions of sensors or pressure regulation function. Examples: Misadjustment of throttle position sensor ST Line pressure is high. PJT fluid temperature sensor damaged Poor operation of line pressure solenoid (stuck with OFF status, clogged filter, or open harness) F% Pressure modifier valve sticking Pressure regulator valve or plug sticking Malfunctions of sensors or pressure regulation function EILA Examples: Line pressure increase is Misadjustment of throttle position sensor poorer than that measured at TCM, ECM.TCM damaged la idle speed. Poor operation of line pressure solenoid (stuck or shorted with ON status) Pressure regulator valve and plug sticking Pressure modifier valve sticking sf$ Pilot valve sticking and pilot filter clogged At stall Malfunctions of pressure supply system, sensors, or pressure regulation function speed Examples: Misadjustment of throttle position sensor Line pressure increases but Control piston damage does not reach specification. Poor operation of line pressure solenoid, and filter sticking or clogged Pressure regulator valve and plug sticking Pressure modifier valve sticking Pilot valve sticking and pilot filter clogged Line pressure is low in par- After line pressure is supplied from manual valve, fluid pressure may leak between devices ticular position. or circuits of corresponding position. Stall Test 1. Check engine oil level. If necessary, add oil. 2. Drive vehicle for approximately 10 minutes until A/T fluid reaches normal operating temperature between 50 and 80°C, and check A/T fluid level. If necessary, add AfT fluid. When ambient temperature is 20°C, A/T fluid operating tem- perature usually becomes between 50 and 80°C for approxi- mately 10 minutes' drive in urban traffic. 3. Set parking brake and block wheels. 4. Statt engine, depress brake pedal, and move selector lever to "D" position.

owners manual Nissan Skyline

owners manual Nissan Skyline - year of production: 1998, 1999, 2000, 2001, 2002 - Nissan Skyline R34 workshop service manual EN