Page 1113 of 2062
Downloaded from www.Manualslib.com manuals search engine CO05V−03
P20967Jiggle Valve
− COOLING (5VZ−FE)THERMOSTAT
CO−9
1996 TOYOTA T100 (RM449U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. DISCONNECT LOWER RADIATOR HOSE
3. REMOVE THERMOSTAT
(a) Remove the 3 nuts, water inlet and thermostat with gas-
ket from the water pump.
Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)
(b) Remove the gasket from the thermostat.
HINT:
Use a new gasket.
Page 1114 of 2062
Downloaded from www.Manualslib.com manuals search engine CO05W−03
CO0600
8.5 mm CO−10
− COOLING (5VZ−FE)THERMOSTAT
1996 TOYOTA T100 (RM449U)
INSPECTION
INSPECT THERMOSTAT
HINT:
Thermostat is numbered according to the valve opening tem-
perature.
(a) Immerse the thermostat in water and heat the water grad-
ually.
(b) Check the valve opening temperature and valve lift.
Valve opening temperature:
80 − 84°C (176 − 183°F)
Valve lift: At 95°C (203°F): 8.5 mm (0.335 in.) or more
If the valve opening temperature and valve lift are not within
specifications, replace the thermostat.
(c) Check that the valve is fully closed when the thermostat
is at low temperatures (below 40°C (104°F)).
If not closed, replace the thermostat.
Page 1115 of 2062
Downloaded from www.Manualslib.com manuals search engine CO05X−01
P20967Jiggle Valve
− COOLING (5VZ−FE)THERMOSTAT
CO−11
1996 TOYOTA T100 (RM449U)
INSTALLATION
1. INSTALL THERMOSTAT
(a) Place a new gasket to the thermostat.
(b) Install the thermostat with the jiggle valve downward.
(c) Install the water inlet with the 3 bolts.
Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)
2. CONNECT LOWER RADIATOR HOSE
3. FILL WITH ENGINE COOLANT
4. START ENGINE AND CHECK FOR LEAKS
Page 1116 of 2062
Downloaded from www.Manualslib.com manuals search engine CO05Y−01
CO−12
− COOLING (5VZ−FE)RADIATOR
1101 Author: Date:
1996 TOYOTA T100 (RM449U)
RADIATOR
ON−VEHICLE CLEANING
Using water or a steam cleaner, remove any mud or dirt from the
radiator core.
NOTICE:
If using a high pressure type cleaner, be careful not to de-
form the fins of the radiator core. (i.e. Maintain a distance
between the cleaner nozzle and radiator core.)
Page 1117 of 2062

Downloaded from www.Manualslib.com manuals search engine CO05Z−03
Z02362
Radiator Cap Tester
Radiator Cap
P14264
− COOLING (5VZ−FE)RADIATOR
CO−13
1996 TOYOTA T100 (RM449U)
ON−VEHICLE INSPECTION
1. REMOVE RADIATOR CAP
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
2. INSPECT RADIATOR CAP
NOTICE:
If the radiator cap has contaminations, always rinse it with
water.
Using a radiator cap tester, pump the tester and measure the
relief valve opening pressure.
Standard opening pressure:
74 − 103 kPa
(0.75 − 1.05 kgf/cm
2, 10.7 − 14.9 psi)
Minimum opening pressure:
59 kPa (0.6 kgf/cm
2, 8.5 psi)
HINT:
Use the tester’s maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the radia-
tor cap.
3. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(b) Warm up the engine.
(c) Pump it to 118 kPa (1.2 kgf/cm
2, 17.1 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator or water pump
for leaks. If no external leaks are found, check the heater core,
cylinder block and head.
4. REINSTALL RADIATOR CAP
Page 1118 of 2062
Downloaded from www.Manualslib.com manuals search engine CO060−01
Z15608
CO−14
− COOLING (5VZ−FE)RADIATOR
1996 TOYOTA T100 (RM449U)
COMPONENTS
Page 1119 of 2062
Downloaded from www.Manualslib.com manuals search engine P20979
− COOLING (5VZ−FE)RADIATOR
CO−15
1996 TOYOTA T100 (RM449U)
Page 1120 of 2062
Downloaded from www.Manualslib.com manuals search engine CO061−01
P20524
P20523
CO−16
− COOLING (5VZ−FE)RADIATOR
1996 TOYOTA T100 (RM449U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE RADIATOR GRILLE
(a) Remove the 4 screws, and clearance lights.
(b) Remove the 4 screws, 11 clips and radiator grille.
3. DISCONNECT UPPER RADIATOR HOSE
4. DISCONNECT RADIATOR RESERVOIR HOSE
5. DISCONNECT LOWER RADIATOR HOSE
6. REMOVE RADIATOR NO.2 FAN SHROUD
7. A/T:
DISCONNECT OIL COOLER HOSES
8. REMOVE RADIATOR
Remove the 4 bolts and radiator.
Torque:12 N·m (120 kgf·cm, 8.7 ft·lbf)
HINT:
Insert the tabs of the radiator support through the radiator ser-
vice holes.