1987 MAZDA 626 oil temperature

TROUBLESHOOTING (G4A-EL) 7B
7. Oil Leakage
Check for oil leakage.
(1) Warm up the ATF.
(2) Apply the parking brake and block the wheels
to prevent the vehicle from rolling.
(3) Shift the selector lever to R range.
(4) Check if oil leaks from the following oil seals
or gaskets.
(5) If oil leaks, replace the oil seal or gasket.
76G07B-026
Check for fluid leaks; the following figure shows the locations where fluid leakage may possibly occur.
1. Oil pan
2. Control valve body cover
3. Oil pump
4. Inhibitor switch
5. Speedometer driven gear
6. Pulse generator
7. Oil filler tube
8. Throttle cable
9. Bearing cover
10. Driveshaft
11. Square head plug
12. Transaxle case
13. Drain plug
14. Oil cooler return pipe
15. Oil cooler outlet pipe
16. Fluid temperature switch
17. Blind plugs
76G07B-027
7B—23

TROUBLESHOOTING (G4A-EL) 7B
STEP 4 (STALL TEST)
This step is performed to determine if there is slippage of the friction elements or malfunction of the
hydraulic components.
Preparation
Check the following items prior to testing:
1. Engine coolant, engine oil and ATF levels.
2. Warm the engine thoroughly to raise the ATF temperature to operating level (50—80°C, 122—176°F).
3. Engage the parking brake and use wheel chocks at the front and rear wheels.
Pull the parking brake Water temperature
ATF
79G07C-084
7B-27

TROUBLESHOOTING (G4A-HL) 7B
STEP 3 (STALL TEST)
This step is performed to determine if there is slippage of the friction elements or malfunction of the
hydraulic components.
Preparation
Check the following items prior to testing:
1. Engine coolant, engine oil and ATF levels.
2. Warm the engine thoroughly to raise the ATF temperature to operating level (50—80°C, 122—176°F).
3. Engage the parking brake and use wheel chocks at the front and rear wheels.
Pull the parking brake Water temperature
ATF
83U07B-038
7B—49

7B ELECTRICAL SYSTEM COMPONENTS
76G07B-073
7B-66
3. Remove the screw and move the inhibitor switch
so that the small hole is aligned with the screw hole.
4. Set the alignment by inserting a 2.0 mm (0.079
in) diameter pin through the holes.
5. Loosely tighten the switch mounting bolts, remove
the pin, and reinstall the screw.
6. Tighten the switch mounting bolts to specification.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
7. Recheck the continuity of the individual terminals.
WATER TEMPERATURE SWITCH
Inspection
1. Remove the water temperature switch.
2. Place the switch in water with a thermometer and
heat up the water gradually.
3. Check the continuity of the terminals. If necessary
replace the switch.
Connection guide
Water temperature Continuity
Below 65°C (149°F) Yes
Above 72°C (162°F) \ No
FLUID TEMPERATURE SWITCH (G4A-EL)
Inspection
1. Remove the fluid temperature switch.
2. Place the switch in oil with a thermometer as shown
and heat it up gradually.
3. Check the continuity of the terminals. If necessary
replace the switch.
Connection guide
Fluid temperature Continuity
Above 150°C (302°F) Yes
Below 143°C (289°F) No
BRAKE LIGHT SWITCH (G4A-EL)
Inspection of Terminal Voltage
1. Turn the ignition switch ON.
2. Check the voltage between terminal (WG) and
ground while depressing the brake pedal.
Terminal voltage I Brake pedal
Approx. 12V Depressed
Below 1,5V Released
3. If not correct, check continuity of the switch.

ON-VEHICLE MAINTENANCE 7B
ON-VEHICLE MAINTENANCE
AUTOMATIC TRANSAXLE FLUID (ATF)
Inspection for Fluid Leaks
Check for fluid leaks; the following figure shows the locations where fluid leakage may possibly occur.
1. Oil pan
2. Control valve body cover
3. Oil pump
4. Inhibitor switch
5. Speedometer driven gear
6. Pulse generator (G4A-EL)
7. Oil filler tube
8. Throttle cable
9. Bearing cover
76G07B-085
10. Driveshaft
11. Square head plug
12. Transaxle case
13. Drain plug
14. Oil cooler return pipe
15. Oil cooler outlet pipe
16. Fluid temperature switch (G4A-EL)
17. Blind plugs
18. Governor cover (G4A-HL)
Inspection of Level
1. Apply the parking brake and position wheel chocks
to prevent the car from rolling forward.
Note
Place the car on a flat, level surface.
2. Run the engine so that the automatic transaxle fluid
reaches specified temperature.
3. While the engine is idling, shift the select lever from
P to L or P to 1 and back again.
4. Let the engine idle.
5. Shift the select lever to P.
76G07B-086
7B—71

7B DISASSEMBLY
DISASSEMBLY
DISASSEMBLY-STEP 1
Components
1. Torque converter
2. Oil pump shaft
3. Oil level gauge and oil filler tube
4. Pulse generator, fluid temperature switch,
and inhibitor switch
5. Solenoid connector
6. Wire harnesses
7. Harness clip
86U07B-116
8. Oil pipes, oil hoses, and switch box
9. Oil pan and gasket
10. Oil strainer and O-ring
11. Control valve body cover and gasket
12. Throttle cable
13. Solenoid connector (Valve body side)
14. Control valve body
15. Oil pump and gasket
7B-88

DISASSEMBLY 7B
6 G4A-EL
Remove the pulse generator, fluid temperature
switch, and inhibitor switch.
G4A-HL
Remove the inhibitor switch.
76GQ7B-123
7. Disconnect the solenoid connector.
8. Remove the harnesses.
76G07B-124
9. G4A-EL
Remove the harness clip, then remove the oil
pipes, oil hoses and switch box as an assembly.
Note
Remove the ball from the case.
76G07B-125
G4A-HL
Remove the oil pipe.
Note Remove the ball from the case.
76G07B-126
7B—91

ASSEMBLY 7B
12. Install the pulse generator and fluid temperature
switch.
Tightening torque:
Pulse generator
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
Fluid temperature switch
29—39 N-m (3.0—4.0 m-kg, 22—29 in-lb)
76G07B-190
76G07B-191
13. Install the inhibitor switch.
(1) Turn the manual shaft to the "N" position.
(2) Install the inhibitor switch and loosely tighten
the bolts.
(3) Remove the screw and move the inhibitor
switch so that the alignment hole is aligned with
the screw hole.
(4) Insert a 2.0 mm (0.079 in) diameter pin
through the holes.
(5) Install the screw; then tighten the bolts to the
specified torque.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
14. Install the harness with the remaining clip.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
15. Remove the transaxle from the SST.
76G07B-192
16. Install the oil level gauge and tube along with a new
O-ring to the transaxle case.
Tightening torque:
7—10 N-m (70—100 cm-kg, 61—87 in-lb)
76G07B-193
7B-213