Why is my 2007 Toyota Sienna overheating?
While there are a variety of reasons your Toyota Sienna is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat.
What kind of coolant does a 2006 Toyota Sienna take?
Zerex 1 Gallon Red 50/50 Coolant/Antifreeze.
Where is the thermostat on a 2004 Toyota Sienna?
This engine’s thermostat is on the opposite side of the engine than the 3.3 L engine that my 2004 Toyota Sienna had.
What happens if the thermostat goes out on a Toyota Sienna?
If the thermostat goes out, then the engine won’t cool properly, and could overheat, causing damage to the engine. In this case, the project vehicle is a 2005 Toyota Sienna, but the process is similar for other vehicles as well. Allow the vehicle to cool for 2 to 5 hours prior to working on the radiator so that you don’t burn yourself.
When to replace the radiator on a Toyota Sienna?
This post is a subsection of a larger tutorial I wrote when I replaced the radiator: How to Replace the Radiator on a 2004-2010 Toyota Sienna 2004-2006 Toyota Sienna with 3.3-liter 3MZ-FE V6 engine (2007-2010 Toyota Siennas have a 3.5 L engine where the thermostat is located on the passenger side)
Where is the coolant sensor on a car?
Unplug the engine coolant temperature sensors on the thermostat housing, which is in the center of the engine block, at the front by the radiator. Then unbolt the water inlet pipe from the water inlet on the engine block and pull it away from the block.
How do you change the thermostat on a car?
Unbolt the water inlet from the engine block using the 3/8-inch ratchet and socket. Pull it away and pull out the thermostat with it, as well as the thermostat gasket. Set the replacement thermostat gasket, then the thermostat in the housing. There is a small valve on the thermostat called a jiggle valve.