Suzuki sq-416-420-625 User Manual

YH4
GRAND
VITARA
7B1-30 AUTOMATIC TRANSMISSION (4 A/T)
Running conditionGear shift
Abnormal noise
Condition Possible Cause Correction
Poor 1st speed run-
ning or excessive
slippage in “D” or “2”
 Fluid pressure leakage from forward clutch
due to wear or breakage of O/D case seal
ring
Replace.
 Overdrive clutch slipping Replace.
Unable to run or ex-
cessive slippage in
“L” range
 Fluid pressure leakage of forward clutch
due to wear or breakage of O/D case seal
ring
Replace.
 Reverse brake disc slipping Replace.
 Broken brake piston O-ring Replace.
Unable to run or ex-
cessive slippage in
“R” range
 Fluid pressure leakage to direct clutch due
to wear or breakage of center support seal
ring
Replace.
 Worn direct clutch Replace.
Poor 1–2 shift, ex-
cessive slippage
 Fluid pressure leakage to overdrive clutch
due to wear or breakage of O/D case seal
ring
Replace.
 Faulty second brake Replace.
 Broken O-ring of second brake piston Replace.
 Faulty second coast brake (in “2” range) Replace.
Poor 2–3 shift, ex-
cessive slippage
 Fluid pressure leakage to overdrive clutch
due to wear or breakage of O/D case seal
ring
Replace.
 Worn direct clutch bushing Replace.
 Direct clutch slipping Replace.
 Foreign material caught in direct clutch pis-
ton check ball
Replace.
Poor start or surging
in “D” range
 Fluid pressure leakage of forward clutch
due to wear or breakage of O/D case seal
ring
Replace.
 Malfunction of forward clutch Replace.
Poor 3–4 shift, ex-
ili
 Faulty overdrive brake Replace.
cess
i
ve s
li
ppage
 Faulty overdrive clutch Replace.
Poor start or judder-
ing in “R” range
 Fluid pressure leakage of direct clutch due
to wear or breakage of oil center support
seal ring
Replace.
 Worn direct clutch Replace.
Excessive shock on
1– 2 shift
 Faulty one-way clutch Replace.
Non operate lock-up
system
 Faulty torque converter Replace.
Abnormal noise in
“P” or “N” range
 Worn oil pump Replace.
SCAN TOOL DATA-Refer to SECTION 6/6-1.
INSPECTION OF PCM AND ITS CIRCUIT-Refer to SECTION 6/6-1.
WIRE HARNESS AND CONNECTORS-Refer to SECTION 6/6-1.

Suzuki sq-416-420-625 Specifications

General

Brand	Suzuki
Model	sq-416-420-625
Category	Automobile
Language	English