Can a 79-93 Mustang heater core be replaced?
The heater cores in Fox Body Mustangs are infamous for leaking and causing poor performance of your heating system. We get a constant bararage of questions on how to replace 79-93 Mustang heater cores. We listened to the outcries from our fellow enthusiast and we created a step-by-step walkthrough video on how to replace your heater core.
Where are the heaters located on a Mustang?
They are located behind the lower dash panel on the driver’s side and behind the glove box door on the passenger side. To gain access you need to take the lower dash panel loose. Remove the lower bolts and pull on the panel to release the spring clips that fasten it to the metal retainer plate.
What to do if your Motorcraft heater core blows out?
The new Motorcraft hoses come with a coolant flow restrictor installed to reduce the chances of the new heater core blowing out the same way. If you choose to go on with your existing hoses and they don’t have the Flow Restrictor we also have those available separately. Well, hope this helped some people out.
How do you remove a defrost vent on a Mustang?
Once those are loose the only thing holding the dash in place is the row of screws just under the windshield. Remove the defrost vent cover by inserting a common screwdriver between the layers and twisting it to create a place to sick your finger in. Pull gently on it to release the clips holding it in place.
Where is the heater core located on a Mustang?
It is located on the bottom corner of the heater box beside the transmission tunnel. Once that is loose the heater box can be moved. Pull back on the heater box assembly to expose the plastic cover the heater core is located under. Remove the 4 small bolts that are holding it in place.
How to remove a heater from a 87-93 Mustang?
The following instructions are for 87-93 Mustang, but 79-86 Mustang is similar with the main difference being fastener locations on the dash & console. This is a pretty big job that requires you to pull the dash from the car so the first order of business is to disassemble the interior components. I started with the removal of the center console.
The new Motorcraft hoses come with a coolant flow restrictor installed to reduce the chances of the new heater core blowing out the same way. If you choose to go on with your existing hoses and they don’t have the Flow Restrictor we also have those available separately. Well, hope this helped some people out.
Once those are loose the only thing holding the dash in place is the row of screws just under the windshield. Remove the defrost vent cover by inserting a common screwdriver between the layers and twisting it to create a place to sick your finger in. Pull gently on it to release the clips holding it in place.