

- #2004 FORD EXPEDITION NAVIGATION SYSTEM REPLACEMENT INSTALL#
- #2004 FORD EXPEDITION NAVIGATION SYSTEM REPLACEMENT MANUAL#
#2004 FORD EXPEDITION NAVIGATION SYSTEM REPLACEMENT INSTALL#
If the heater core came with an access cover, then install it. Once you’re confident everything is working as required, all that is left is clean up. Start the engine, turn the heater on high and activate the fan to verify heat is blowing from the heater core. Once the heater core, clamps, hoses and tube are secure, you’re ready to add new coolant to the radiator. Install the new core, reinstall or replace the mounting clamps and then the hoses as well as the heater drain tube. Drain whatever coolant remains.īefore installing a new heater core, transfer any parts from the old heater core to the new one. Inspect the hoses, as now would be a good time to replace them if they are rotten. Remove the hoses connecting to the heater core. Next, remove the heater drain tube and loosen the clamps on the heater core hoses. When you find the heater core, raise the front of your vehicle, placing it on jacks. You may need heater core hoses and hose clamps. Besides a new heater core, you’ll also need coolant. You’ll need several tools to get this job done, including a jack, jacks stands, a socket set, wrenches, pliers, a drain pan and rags. It’s at this point you may decide to let your mechanic handle the job. In this example, you’ll have to evacuate the air conditioning system as a result of disconnecting the evaporator to remove the HVAC unit.

That means you’ll have to remove the dash as well as the heating, air conditioning and ventilation (HVAC) system to reach it. Unfortunately, not all heater cores are prominently located. A blower or fan draws air through the heater core, directing air through the heater ducts to your car’s interior. These hose connections are usually found on the passenger side of the engine firewall, but may also be found near the middle. The second hose returns the coolant to the top of the engine. Two hoses connect to the heater core - one hose is tasked with transporting hot coolant from the water pump to the heater core. Lift the hood and follow your car’s cooling system towards the cabin to find what looks like a small version of your vehicle’s radiator.
#2004 FORD EXPEDITION NAVIGATION SYSTEM REPLACEMENT MANUAL#
Where did the manufacturer place the heater core? You may need to reference a service manual to find it, but it’s typically found in one of two areas. So don’t put off a heater core replacement thinking you can just keep adding coolant, the damage can reach farther than you think. If that vaporized coolant ends up in your lungs, it can make you and your passengers sick. Even if you don’t drink the liquid coolant directly, the vaporized coolant can still circulate inside the vehicle. Ethylene glycol, methanol and propylene glycol are among the main ingredients present and may lead to serious symptoms and even death if consumed and not immediately treated. Antifreeze is also toxic and if somehow ingested, it can make a person very ill. The liquid is coolant, also known as antifreeze, and it can damage your car. Don’t Delayīesides not functioning in the way intended, a leaking heater core creates a mess. Getting the job done ranges from easy to difficult, depending on the core’s location inside your car. When working properly, the heater core sends heat to the cabin. Another visible sign of trouble is damp carpeting, usually on the passenger side of the vehicle near where the heater core is located. Heater core replacement is one of those jobs you have to do if the windshield fogs when the defroster is running.
