The 2003 Toyota Matrix is a popular sub-compact coupe that has helped to make Toyota a top-of-the-line foreign auto manufacturer. Due to their popularity there are several repair manuals available that can help you forgo taking the vehicle to a repair garage to have small things like the thermostat corrected. If you have a basic knowledge of engine repair and a few shop tools you can remove and replace that worn out thermostat with one that will properly regulate that Matrix engine.
Things You'll Need
- 2003 Toyota Matrix thermostat
- 2003 Toyota Matrix thermostat gasket
Pull the radiator hose off of the thermostat housing by releasing the radiator hose retaining clip with a screwdriver and then pull the hose off of the housing. Shove a towel into the radiator hose to prevent getting radiator fluid on the engine.
Remove the two bolts that hold the thermostat housing onto the intake of the 2003 Toyota Matrix. With the bolts removed, lift the thermostat housing off of the intake.
Pull the thermostat out of the intake and then remove the thermostat gasket. The thermostat gasket may stick to the intake. If this happens you must scrape the gasket off with a scraper. If you need to scrape the gasket off you can avoid getting anything into the intake by filling the hole inside of the intake with a shop towel.
Place the new gasket onto the intake manifold and then place the new thermostat into the intake.
Place the thermostat housing back on top of the thermostat gasket and bolt it back into place. If the bolts are over tightened it can crack the bolt tabs on the housing.
Place the radiator hose back onto the thermostat housing and secure it with the retaining clip.
Tips & Warnings
- Some people opt to replace the radiator hose retaining clip with a newer cam operated band clamp. These lessen the likelihood that the hose will leak after the reinstall.
- Photo Credit radiator humor image by John Sfondilias from Fotolia.com
How to Change Your Car's Thermostat
If you notice your car's engine is running hotter than usual, it is often a result of the thermostat wearing out.
How to Change the Thermostat in a Toyota Tacoma
Toyota introduced Tacoma in 1995. Since then it's been a favorite in the compact pickup market, especially among used-vehicle shoppers. The 2001...
How to Replace the Coolant Sensor in a Toyota 4Runner
The Engine Coolant Temperature (ECT) sensor has a direct impact on your Toyota-4Runner engine performance. On newer models, the computer controlled spark...
How to Replace the Rear Wiper Blade on a Toyota Matrix
The rear windshield wiper blade on a Toyota Matrix helps to remove the debris that accumulates on the rear window. Windshield wiper...
How to Replace a Toyota Celica Thermostat
Later models of the Toyota Celica had a 1.8L four-cylinder engine. While this engine isn't that different from other Toyota four-cylinders, it...
How to Change the Brakes on a Toyota Matrix
Toyota considers the Matrix part of its Corolla line of vehicles, so the process of changing the brakes on the models is...
How to Install a Starter on a 2003 Toyota Matrix
If you need to install a new starter on your 2003 Toyota Matrix, you need to remove the old broken one first....
DIY Toyota Matrix Oil Change
The engine oil and filter on your Toyota Matrix should be changed at least every 5,000 miles, according to the Toyota schedule...
How to Replace the Front Headlight on a Toyota Matrix
Driving with faulty headlights is dangerous for the drivers of vehicles around you, too. Both your ability to see the road and...
How to Replace a Thermostat in a Toyota Echo
Unfortunately for Toyota Echo owners, Toyota did not place the thermostat in a location that makes it easy to access. You must...
How to Replace the Antenna on a Toyota Matrix
The radio antenna on a Toyota Matrix is mounted on the roof at the rear end of the vehicle. The antenna wire...