LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2003 >> Sienna LE >> Repair and Diagnosis >> General Information >> Specifications Index >> Common Specs & Procedures >> Engine Cooling >> Service >> Specifications
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Cooling: Service: Specifications

COOLING SYSTEM SPECIFICATIONS

Application Specification
Coolant Replacement Interval 30,000 Miles Or 24 Months
Coolant Capacity
With Rear Heater 11 Qts. (10.4L)
Without Rear Heater 10.4 (9.5)
Pressure Cap Standard Opening Pressure (1) 12.1-16.4 psi (.85-1.15 kg/cm2 )
Thermostat Opening Temperature (2) 176-183°F (80-84°C)
(1) Minimum opening pressure is 10 psi (.70 kg/cm2 ).
(2) Thermostat valve lift should be .394" (10 mm) or more at 203°F (95°C).

THERMOSTAT R & I 

For removal and installation, see THERMOSTAT article.

WATER PUMP R & I 

For removal and installation, see WATER PUMP article.