1. Drain the cooling system. Refer to: Cooling System Draining and Vacuum Filling .
2. Remove the air cleaner outlet pipe. Refer to: AIR CLEANER OUTLET PIPE .
NOTE: Cover the accessory drive belts to prevent coolant contamination of the belts.
3. Completely cover the accessory drive belts with waterproof plastic.
4. Release the clamps and disconnect the coolant hoses.
Use the General Equipment: Hose Clamp Remover/Installer
5. Remove the bolts and the thermostat housing.
6. Remove and discard the O-ring seal.
Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.