Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Ford Excursion 4WD V8-6.0L DSL TurboFACTORY OEM SERVICE PROCEDURE
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
REMOVAL
1. Turn the ignition switch to the OFF position.
CAUTION: Make sure the ignition switch is in the OFF position prior to working on the electronic engine controls.
2. Partially drain the cooling system.
3. Disconnect the Engine Coolant Temperature (ECT) electrical connector.
4. Remove the engine coolant temperature (ECT) sensor.
INSTALLATION
1. To install, reverse the removal procedure.
1. Turn the ignition switch to the OFF position.
CAUTION: Make sure the ignition switch is in the OFF position prior to working on the electronic engine controls.
2. Partially drain the cooling system.
3. Disconnect the Engine Coolant Temperature (ECT) electrical connector.
4. Remove the engine coolant temperature (ECT) sensor.
INSTALLATION
1. To install, reverse the removal procedure.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.