2000 ford excursion heater core replacement

Ford Excursion Heater Core Replacement Costs

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AutoNation Mobile Service offers upfront and competitive pricing. The average cost for Ford Excursion Heater Core Replacement is $692. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.

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Symptoms of a failing Heater Core

Leaks inside the car.

Cars use a lot of liquid, so leaks aren’t that uncommon. The heater core, however, is the one component in your car that will leak inside of the car. You’ll likely notice it as a puddle underneath the dashboard, though you might see it slowly dripping from the dash as well. Either way, that’s a sign that your heater core is having a tough time. Similarly, you may not notice the sight of the liquid, but you might notice the smell of it. If you smell coolant in your car, it’s probably the heater core.

Heater isn’t working

Your car’s cabin heater depends on the heater core in order to work. Without the heater core, there’s no way for the climate controls to actually get hot air. So, if the heater core fails, your car won’t have any hot air, or perhaps will have only a tiny amount of hot air. Fine in July. Not so much in January.

Windows are fogging up

Your windows may fog up for two reasons if your heater core fails. First, the car often relies on hot air when defrosting the windows, so it will struggle without that air. And second, the leaking coolant can cause a slight steam that will fog the windows to the point where you may not be able to see out of the windshield.

Coolant levels are low

Look, I’m not going to tell you how to spend your time. I’m just going to tell you that it wouldn't hurt to take a few minutes to check the fluid levels in your car. You might spot small issues before they become big issues. If you notice that your coolant level is low, you probably have a leak somewhere. That leak may be from the heater core.

Engine is overheating

Or, you can just do it the less responsible way, by not monitoring your coolant level, and just waiting for your engine to overheat. Your choice.

How urgent is a heater core replacement?

That entirely depends on whether or not you like having a properly functioning coolant system and interior heating system.

If you shivering in your car while the engine overheats, and coolant puddles on the floor mat, then there’s no urgency at all! Otherwise, yeah. You’ll want to get it fixed asap.

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Home » Troubleshooting » Ford Excursion heater not working – causes and diagnosis

Ford Excursion heater not working – causes and diagnosis

The heater in Ford Excursion ensures comfortable temperature in the passenger compartment when the weather is chilly. There are many reasons for poor heating performance in Excursion, which are explained in this article.

The heater may stop working in Ford Excursion due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty blend door actuator, bad water pump, dirty cabin air filter, bad blower motor, or HVAC control unit malfunction.

1. Low coolant or air in the cooling system

Low coolant level or air in the cooling system can cause the heater to stop working properly in Excursion. If the cooling system is not full and bled properly, the water pump will not be able to push the coolant around the system efficiently.

The heating system in Excursion uses hot coolant or antifreeze from the engine block to heat the interior of the vehicle. The hot coolant is pumped through the heater core located behind the dashboard. When you turn on the heating, air gets blown through the heater core, warming the air in the cabin. If there is air trapped inside the heater core, the coolant will not be able to flow through it properly. Since the heater core is usually slightly higher, the air will accumulate in there first. By filling and properly bleeding the system the heat should come back.

Sloshing water sound

Low coolant level or air in the heater core can sometimes cause sloshing sound from behind the dashboard when the engine is running. The sound is most prominent right after you start the vehicle.

Check coolant level

Checking coolant level in Excursion is a fairly some job. You just have to locate the coolant overflow reservoir and inspect the level of coolant in it. If the coolant level is low, open the cap and pour some coolant into the tank until it is between minimum and maximum mark.

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2. Clogged heater core

Clogged heater core is one of the leading causes of heating not working in Ford Excursion. The design of the heater core is similar to the radiator, it has narrow internal channels through which hot coolant flows. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the coolant.

How to check if the heater core is clogged

You don’t have to remove the heater core in your Excursion to check if it is clogged. Locate two rubber hoses that connect to the heater core through the firewall area. Feel both the rubber lines going in and out of the heater core after the engine has warmed up. Both should be hot. If one is hot and the other is cold, you have a plugged heater core.

Flush the heater core

Before you consider replacing the heater core in your Excursion, it is recommended to flush the existing heater core. Flushing is done by pushing water through the outlet hose of the heater core and draining the gunk from the inlet hose. There are flush kits available in the market that can help you do the job yourself.

3. Bad thermostat

Thermostat is a part of the cooling system in Ford Excursion which ensures that the engine reaches its optimal operating temperature as quickly as possible and maintain it under all operating conditions.

Thermostat is stuck open

When you start your Excursion when the engine is cold, the thermostat cuts off flow of coolant through the radiator in order to quickly reach the optimal engine operating temperature. But if the thermostat has developed a defect and is stuck to open position, the coolant will continuously flow through the radiator and the engine may take a long time to reach its optimal operating temperature.

Heater takes a long time to blow hot air

Since the heating system in Excursion relies on the hot coolant from the engine to heat the interior, the heater will blow cold air until the engine reaches its normal operating temperature. But if the weather is too cold, the engine may never reach its optimal operating temperature with a stuck open thermostat. Your vehicle may also consume more fuel than normal.

5. Bad water pump

The water pump is the heart of the cooling system in Excursion responsible for pumping coolant throughout the system and cooling the engine. If the water pump has worn out and the coolant is not being circulated as effectively as it used to, it can cause the heater to stop working properly because there’s less coolant available to transfer heat between the engine and the heater core.

Water pumps usually last for more than 100,000 miles, but they can fail at any time. A bad water pump will not only cause poor heating, but can also result in engine damage due to overheating. Therefore it is important to diagnose a failing water pump at early stages to avoid expensive repairs later on.

6. Faulty blend door actuator

Blend door actuator plays a role in controlling the temperature inside your Excursion. If the blend door actuator fails to fully open the blend door towards the heater core, it will result in poor heating performance.

The most common symptom of a faulty blend door actuator in Ford Excursion is a slight clicking sound (or other unusual noise) repeatedly coming from under the dashboard. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature.

Symptom: knocking sound

A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Excursion. The sound is something like a light tapping on the door and it typically happens when you turn on/off the air conditioning system or start the engine.

Symptom: creaking sound

One side hot, other side cold.

A common symptom of a faulty blend door actuator in vehicles with dual zone climate control system is one side blowing hot air while the other side is blowing cold air.

Replace the faulty part

A bad blend door actuator usually cannot be repaired and must be replaced with a new one. Due to the complexity of the replacement job, it is not recommended as a DIY project. The blend door actuator may require recalibration after replacement.

7. Dirty cabin air filter

Dirty cabin air filter is the leading cause of weak heater airflow in Ford Excursion. The pollen filter, also known as the cabin air filter or microfilter, is responsible for filtering the air that the passengers breathe in the cabin. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced heating and airflow.

There is no fixed time for replacing the cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturer’s recommendation. Additionally, if you drive your Excursion with AC system set to fresh outside air most of the time, your cabin air filter will get dirty much sooner as compared to air recirculation mode.

Replace the filter at the start of every winter for optimal performance

It is generally recommended to replace the cabin air filter every year at the start of the winter season. Spring and summer seasons are hard on the cabin air filter because of pollen and bugs, and in the fall they can get clogged with leaf debris. This gives you a fresh start for the winter, improves defroster performance, and reduces chances of mold or mildew growth.

Can you clean a dirty cabin air filter?

Instead of changing the cabin air filter in Excursion, it is often recommended to first clean the filter. This can be done, for example, with a vacuum cleaner or a compressed air system, removing at least a large part of the visible dirt particles. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Therefore, the filter performance will not increase significantly even after cleaning. As a rule, there is no avoiding a change if the filter is dirty.

8. Sluggish blower motor

If the blower motor in your Excursion is not spinning fast enough either due to an internal defect or due to a fault in the resistor/control module, the airflow from the AC vents will be weaker and the heating performance will be degraded.

When a blower motor goes bad, it usually makes unusual noises when in operation, and the passengers may feel reduced airflow from the air vents. Keep in mind that reduced airflow doesn’t always indicate a problem with the blower motor, as it can also happen due to a clogged cabin air filter, dirty evaporator, or a bad mode door actuator. So, all of them must be inspected when diagnosing poor airflow.

9. Dead blower motor (no airflow)

If there is no air flow from the air vents in the dashboard when you turn on the heater in your Ford Excursion, it means the problem is related to the fan or blower motor function.

The most common causes for blower motor not working in Ford Excursion are blown fuse, bad relay, resistor or control module malfunction, and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working.

10. Dirty evaporator

Dirty evaporator can cause weak airflow and reduce the heating performance in Excursion. Although, the evaporator coil is a component of the cooling function of the air-conditioning system, but the air always first passes through the evaporator and then flows over the heater core.

The cabin air filter captures most of the dirt or other airborne particles, but some particles escape and can get lodged on to the evaporator. Over time, these particles build up on the fins and block the air flow through the evaporator, causing reduced air flow in the cabin and poor heating or cooling.

Function of the evaporator in heating mode

When the heater is turned on and the AC turned off, the compressor does not turn on and the evaporator is not cooled. When you press the AC button in heating mode, the compressor turns on and the evaporator cools and dries the air before it enters the heater core. This mode is useful for clearing fog from the windows.

11. Faulty HVAC module

Climate control module is the brain of the air-conditioning system in your Ford Excursion, responsible for controlling all the components in the system. In rare cases, a fault in the climate control unit can cause the heater to stop functioning. This would require a scan tool to confirm correct operation.

12. Blown head gasket

The head gasket is responsible for providing the seal between the engine block and cylinder heads. Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. Leaks in the head gasket can cause all sorts of problems in your Excursion including poor heater performance. This is mostly common in older vehicles.

Leaking exhaust gases

A blown head gasket can cause the exhaust gases from the engine to enter the cooling system and plug the heater core. Clearing the air from the heater core will not help until the head gasket has been replaced.

Leaking coolant

A blown head gasket can cause coolant to leak into the combustion chambers and burn off. If your Excursion is losing coolant, that means there is a leak somewhere or it is getting burned up inside the engine.

How to check if head gasket is leaking in Excursion?

You don’t have to go to a workshop to check for a leaking head gasket in your Excursion. There are test kits available in the market in which you just have to insert a tube filled with colored liquid in the radiator (in place of the radiator cap), and then start the engine. If the liquid changes color, then there is a leak in head gasket.

Switch on air recirculation mode

When the outside temperature drops too low, the heating performance may be reduced in Excursion if the air conditioning system is set to outside air. To improve heating efficiency, it is recommended to switch on air recirculation mode. Don’t worry, there is no risk of suffocation, as the air recirculation mode still allows up to approximately 10 percent of the air coming from the air vents to be fresh air from the outside.

There are many reasons why the heater in your Ford Excursion is not working properly. When looking for the reason, you should start with the most obvious causes: low coolant level or air in the cooling system, and clogged heater core.

In any case, it is advisable for laypersons to visit a workshop. A professional mechanic can swiftly diagnose the heating issue for you.

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04 Excursion Heater hose replacement on passenger side

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I have an 04 excursion and found a leak on the plastic Y that connects the hoses to the heater core of the front and rear heater. This part also contains the heater control valve that has the vacuum tube plugged into it. It also is attached to the firewall by a zip-tie. There are 3 ends to this hose. 1 end plugs into the metal tube on above the front of the valve cover on the passenger side. Another end plugs into the heater core on the passenger side. (The heater core is located on the passenger side, trying to clarify which side of the heater core). The final (longest) and hidden connection drops down into the abyss. I am pretty sure this connects to the rear heater core. I am not quite sure how to access the connection to the rear heater core for removal. Do I jack the vehicle up and remove the passenger side tire, then remove the covering inside the wheel well to access? Or do I attempt to reach up from underneath the vehicle? I don't think it is feasible to reach up since I wouldn't be able to get hold of it that way. Just wondering if anyone has some insight  

Bumping up to see if anyone knows. Thanks  

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2000 Ford Expedition Heater Core Replacement Cost

The average cost for a 2000 Ford Expedition heater core replacement is between $857 and $1067. Labor costs are estimated between $358 and $456 while parts are priced at $499. This range does not include taxes and fees, and therefore the total cost may be higher.

Replacing the heater core in a 2000 Ford Expedition will cost between $600 and $1000, depending on the labor costs in your area. The parts themselves will cost between $200 and $300. If you are comfortable doing some of the work yourself, you can save on labor costs by doing it yourself or having a friend do it for you. The most important thing is to make sure that the new heater core is properly installed so that it functions correctly and doesn’t leak.

Heater Core Replacement. Ford Expedition, Excursion, F150 and more.

Heating Core Replacement Cost

If your car has been having issues with its heating core, you may be wondering how much it will cost to replace it. The answer depends on a few factors, but the average cost for a heating core replacement is between $600 and $1,200. The first factor that will affect the cost of replacing your heating core is the make and model of your car. Some cars are simply more difficult to work on than others, which means that the labor costs will be higher. In addition, some parts may be more expensive than others depending on the make and model of your car. Another factor that will affect the cost of replacing your heating core is whether or not you do it yourself. If you have some experience with car repairs, you may be able to save money by doing the work yourself. However, if you’re not confident in your abilities, it’s probably best to leave it to a professional. Finally, the location of your heater core will also play a role in the cost of replacing it. If it’s located in a difficult-to-reach spot, it will likely cost more to replace than one that’s easily accessible. Keep these factors in mind when budgeting for a heating core replacement. By knowing what to expect, you can avoid any surprises down the road!

2005 Ford Expedition Heater Core Replacement

If your 2005 Ford Expedition is having issues with the heater core, it may need to be replaced. The heater core is a small radiator-like device that sits behind the dashboard and circulates hot coolant to provide heat for the cabin. If the heater core starts to leak, it can cause all sorts of problems, from a musty smell in the cabin to water leaking onto the floorboards. Replacing the heater core is not an easy task, but it’s certainly doable with some patience and effort. Here’s a step-by-step guide to help you through the process: 1) Disconnect the battery. This will prevent any electrical shorts while you’re working on the car. 2) Drain the cooling system. You’ll need a clean catch pan to do this – don’t use an old one as it might not be able to handle all of the coolant. Once it’s drained, remove the hoses leading to and from the heater core. 3) Take out the dash panel. This will give you access to the back of the heater core so you can remove it. Be careful not to break any ofthe plastic pieces as you remove them. 4) Removethe oldheatercoreandinstallthenewoneinthesamepositioning using bolts or screws (depending on what type of replacementcoreyou purchased). Make sureit’ssecurelyfastenedbeforereplacingthedashpanelandreconnectingthebatteryandhoses.

Cheap Heater Core Replacement

When it comes to replacing your heater core, the most important thing is to find a replacement that fits your car. There are many different types and sizes of heater cores, so you’ll need to know what size and type your car uses. The best way to do this is to consult your car’s owner’s manual. Once you’ve determined the size and type of replacement you need, the next step is finding a reputable supplier. There are many online suppliers that offer cheap heater cores, but it’s important to make sure you’re getting a quality product. One way to do this is to read customer reviews before making your purchase. Also, be sure to compare prices from different suppliers before making your decision. By taking these simple steps, you can be sure you’re getting a quality product at a great price.

Bmw Heater Core Replacement Cost

If your BMW is in need of a heater core replacement, the cost can vary depending on the model of your vehicle. The average cost for this type of repair is between $1,500 and $2,000. But, if you have a higher end model like a BMW 7-series, the cost could be closer to $3,000. Heater core replacements are not typically covered by warranty, so it’s important to factor in this potential expense when purchasing a BMW.

Heater Core Replacement Time

If your vehicle’s heater isn’t working properly, it may be time to replace the heater core. This can be a difficult and time-consuming task, so it’s important to know what you’re getting into before you start. The first step is to remove the dash panel from inside the vehicle. This will give you access to the heater core. Once the dash panel is removed, you will need to disconnect the hoses that are connected to the heater core. There are usually two hoses – one for hot water and one for cold water. Next, you will need to remove the screws or bolts that hold the heater core in place. Be careful when removing these, as they can be sharp and cause injury if not handled properly. With the screws or bolts removed, you should now be able to pull out the old heater core and replace it with a new one. Once the new heater core is in place, simply reconnect the hoses and screw or bolt everything back into place. You may need to bleed air out of the system before it will work properly again. Refer to your vehicle’s owner manual for instructions on how to do this. Replacing a heater core can be a tricky and time-consuming job, but it’s definitely something that most people can do themselves if they have patience and take their time .

Jeep Heater Core Replacement Cost

If your Jeep is overheating, or the heater isn’t working properly, it may be time to replace the heater core. The average cost to replace a Jeep heater core is between $600 and $900. The parts themselves can range in cost from $100 to $300, and labor will add another $500 to $600. Most Jeep owners will never have to replace their heater core, but if you do find yourself in need of a replacement, it’s important to know what the cost will be. Replacing a heater core is a big job, and should only be attempted by an experienced mechanic. If you’re not comfortable with doing the work yourself, make sure you take your Jeep to a reputable shop that can get the job done right.

Heater Core Replacement near Me

If you’re in need of a heater core replacement, there are a few things you should keep in mind. First, it’s important to find a reputable shop that specializes in this type of repair. There are many shops out there that claim to be able to handle this type of work, but not all of them have the experience and expertise necessary to do the job right. Second, be sure to get an estimate for the cost of the replacement before having any work done. This will help you budget for the repairs and avoid any surprises later on. Finally, make sure you understand exactly what is involved in the replacement process so that you can be prepared for it. Replacing a heater core is not a difficult task, but it does require some knowledge and experience. With these tips in mind, you should be able to find a shop near you that can handle your needs and get your car back on the road in no time!

Heater Core Price Autozone

When it comes to replacing your heater core, the price can vary depending on a few factors. The make and model of your vehicle will affect the cost, as well as whether you do it yourself or have it done by a professional. If you’re looking to save some money, you can definitely try to replace the heater core yourself. However, keep in mind that this is a pretty involved process and isn’t for everyone. If you’re not comfortable taking apart your dash and working with delicate parts, it’s probably best to leave it to the professionals. As far as cost goes, expect to pay anywhere from $100-$400 for a new heater core. The exact price will depend on your vehicle and where you get it from. If you’re buying from a big box store like AutoZone, you’ll likely be on the lower end of that range. However, if you need to special order a part or get it from a dealership, the price will be closer to $400. Overall, replacing your heater core isn’t an inexpensive repair. But if your heat suddenly stops working in the middle of winter, it’s definitely worth getting fixed!

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How Much Does It Cost to Replace a Heater Core on a 2001 Ford Expedition?

If you need to replace the heater core on your 2001 Ford Expedition, it will cost you somewhere between $400 and $1200. The exact amount depends on a few factors, such as the model of Expedition you have and where you take it to get repaired. Generally speaking, though, most people can expect to pay somewhere in the middle of that range for a new heater core. Of course, replacing a heater core is not something that most people will be able to do on their own. Unless you are very mechanically inclined and have experience working on cars, you’ll likely need to take your Expedition to a qualified mechanic or dealership for the repair. This means that labor costs will also be factored into the final bill. Expect to pay anywhere from $50 to $200 per hour for labor, depending on the shop you visit. All told, then, replacing a heater core on a 2001 Ford Expedition will probably set you back somewhere between $450 and $1400. Again, this is just a rough estimate – the actual cost could be higher or lower depending on individual circumstances. If your Expedition is having trouble with its heater core, it’s best to get it checked out sooner rather than later; left unchecked, a damaged heater core can cause all sorts of other problems down the line.

How Much Will a Shop Charge to Replace a Heater Core?

If your vehicle is leaking coolant, it’s likely that you have a problem with your heater core. The average cost to replace a heater core is between $600 and $1200, depending on the make and model of your vehicle. The labor costs will be between $500 and $700, while the parts will cost between $100 and $500.

How Much Does It Cost to Replace a Heater Core in a 2002 Ford Expedition?

If your heater core is leaking, you’ll likely notice a sweet smell inside your car and steam or antifreeze on the windshield. These are all signs that you need to replace your heater core as soon as possible. The average cost for a Ford Expedition heater core replacement is between $879 and $1,129. Labor costs are estimated between $614 and $772 while parts are priced at $265. This range does not include taxes and fees, so be sure to budget accordingly.

How Many Hours Does It Take to Replace a Heater Core?

If your car is overheating, smells like antifreeze, or the heater isn’t working, it might be time to replace the heater core. The job will take about two hours, and you’ll need a few tools and supplies. Here’s what you need to know about replacing a heater core. The first step is to locate the heater core. This is usually located behind the glove box or in the dash. Once you’ve found it, disconnect the negative battery cable. Next, remove any panels or covers that are in the way of accessing the heater core. Once you have access to the heater core, disconnect the hoses that are attached to it. There are usually two hoses – one for hot water and one for cold water. You’ll also need to disconnect any electrical wires that are attached to the heater core. With all of the hoses and wires disconnected, you can now remove the old heater core from its housing. To do this, simply unscrew it or pull it out (depending on how it’s mounted). Now clean out any debris from inside the housing before installing the new heater core.

Assuming you need to replace the heater core in a 2000 Ford Expedition, it will cost between $200 and $550. The part itself will be between $100 and $300, and labor will be between $100 and $250. This is a pretty big job, so unless you are very mechanically inclined, you will probably want to leave it to a professional.

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2000 Expedition Heater Core Bad

• Thread starter One Mean Green
• Start date Aug 24, 2012

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• Aug 24, 2012

One Mean Green

Full access members.

Just about every vehicle is difficult to do a heater core although some are easier than others depending on your mechanical ability. They are all usually in the dash which usually requires it being removed, some are accessible through the glove compartment. You cant just say you won't own another Ford because of it- it's not the trucks fault. It can be done at home depending on the tools you have and abilities. I would check with a local independent garage for price although any decent reputable place is gonna charge decent money for their labor.  

Here is a decent video link, and the guys speaks fluent english. It's on an F150 but they are essentially the same vehicle as far as the heater core is concerned. You would need to decided if yuour capabilities are up to removing the whole dash F150 Heater Core part 1 - YouTube F150 Heater Core part 2 - YouTube F150 Heater Core part 3 - YouTube I actually just watched all 3 parts and it is an excellant video  

Thanks for posting those links, IDK why I didn't think about the F150? Well, after watching them I know I would be in over my head even if I weren't disabled. IDK what to do the trucks a great ride and its paid for and I don't need another car payment. I do have most of the tools but I don't have a good place to work on it. I wonder how much coolant will leak out of the heater core if the a/c and heat are not being used long term? is there some sort of valve that shuts down the coolant flow when its not in use? I may elect to do with out the a/c and heat and do nothing at least for the short term. My anger at Ford is due to the fact that they and others design vehicles that compel the vehicle owner to have repair work done at the dealer or other garage. I was formerly in building maintenance and we once had some architectural interns spend 2 weeks with our staff and they followed us around during our workdays. I made it a point to show them that just because you can design something doesn't mean you should. Examples of poor design included a plumbing chase between 2 restrooms that were 2 ft wide and full of pipes you literally had to crawl over to work on. Lights 30ft up in the air over a lobby that to change lamps required the usage of scaffolding. After their time with us hopefully some of them learned what you design has to be maintainable. Thats my rant for the day.  

• Aug 26, 2012

You can do without heat but you can't do without defrost  

• Aug 27, 2012

The heater core stays pressurized even with the heater off. Coolant will still leak out of it while the engine is running. I had most of the dash out of my F-150 trying to access the evaporator core, but when I got to the point of actually removing the large plastic part of the dash, I couldn't get it loose. I put it all back together. The evaporator cleaning wasn't _that_ important IMO.  

• Jul 9, 2013

I have the same problem with my heater core leaking in my 2000 model Expedition. I live in Florida so I am simply going to bypass the heater core altogether. This can be done easily under the hood. There are two hoses going through the firewall to the heater core. Simply undo the hose quick connects, insert the correct size hose splice and clamps and the problem is solved. Living in Florida for 2 years and have never turned the heat on, so this is a good quick and easy option for me. Tennessee has good winters, so you may not be able to do without, especially defrost.  

• Jul 15, 2013

I just did my heater core in my 98 eddy i have bin a mechanic for 20 years 15 of which were at a ford dealer and it still took me two full days not a job for the novice  

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