Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

HINT:

The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.

(a) Immerse the thermostat in the water, then heat the water gradually.

(a) Immerse the thermostat in the water, then heat the water gradually.

CAUTION:

  • Do not your hands into the water that has been heated for the inspection.
  • Touching the heated water could result in burns.

(b) Check the valve opening temperature of the water inlet with thermostat sub-assembly.

Standard valve opening temperature:

85 to 89°C (185 to 192°F)

NOTICE:

When checking the water inlet with thermostat sub-assembly in water, keep the terminals dry. After the check, wipe the water inlet with thermostat sub-assembly dry.

If the valve opening temperature is not as specified, replace the water inlet with thermostat sub-assembly.

(c) Check the valve lift.

Text in Illustration

*a

Valve Lift

Standard valve lift:

8.0 mm (0.315 in.) or more at 100°C (212°F)

If the valve lift is not as specified, replace the water inlet with thermostat sub-assembly.

(d) Check that the valve is fully closed when the water inlet with thermostat sub-assembly is at a low temperature (below 40°C (104°F)).

If the valve is not fully closed, replace the water inlet with thermostat sub-assembly.

(e) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

20°C (68°F)

10.54 to 14.26 Ω

If the result is not as specified, replace the water inlet with thermostat sub-assembly.

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Installation
INSTALLATION PROCEDURE 1. INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY (a) Install a new gasket to the water inlet with thermostat sub-assembly. (b) Install the water inlet with thermostat sub ...

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