1995 Suzuki Sidekick Auto Trans Diagnosis - Hydra-Matic 3L30

AUTOMATIC TRANSMISSIONS Hydra-Matic 3L30 

Geo; Tracker Suzuki; Sidekick 

DESCRIPTION & OPERATION 

Automatic transmission provides 3 forward speeds and reverse. Main internal components are; oil pump, Torque Converter w/Clutch (TCC), reverse clutch, 2nd clutch, 3rd clutch, one-way clutch (sprag type), compound planetary gear set, low brake, governor and valve body. See Fig. 1.

TROUBLE SHOOTING

NOTE: Poor engine performance can have a negative effect on transmission performance. 

Preliminary Checks

Ensure fluid level is correct. Inspect and adjust shift linkage and park/neutral position switch (if necessary). Check idle speed RPM and adjust as necessary. Road test vehicle to ensure proper engine performance.

SYMPTOM DIAGNOSIS

Low Fluid Level

Check for fluid leak out of filler tube, external fluid leak(s) and faulty vacuum modulator.

Fluid Leak From Filler Tube

Check for high fluid level, engine coolant in transmission fluid, pinched breather hose and leak in oil pump suction circuit.

Low Fluid Pressure

Check for low fluid level, clogged oil pump screen, leak in oil pump suction circuit, leak in oil pressure circuit, pressure regulator valve. Download File PDF


Close Menu