Oh man! You better be prepared to have appx. 8 hrs of spare time because this is going to take you a while. In order to replace the heater core you must take off your entire dashboard as well as deactivate the airbags. Detailed info on how to deactivate them can be found in a Chilton's manual. Good luck!
The HVAC system is basically the same in the Navigator and the Expedition and F150. All three models have a common problem with the blend door failing and causing a lack of control over the air flow through the heater core. Replacing the heater core isn't necessary unless you are smelling antifreeze in the passenger compartment and losing coolant from the radiator. Replacing the heater core or OEM blend door requires removal of the steering wheel/steering column/dash panel to get access to the plenum box and is a major operation. There is an aftermarket kit that will allow you to effect a repair of the blend door without having to disassembly the dash. Check links through my bio page for additional information including a video of the diagnosis/repair process.
fuse
Heater hoses on a 1993 Lincoln Continental are located on the heater core behind the dashboard. There is no real easy fix. It includes quite a bit of labor.
This is my son-in-laws truck. I have to fix it
Take it to a mechanic and say "will you fix the heater core?"
COULD BE A BAD HEATER CORE COULD BE A BAD HEATER CORE sounds like the heater control switch needs replacing.if that doesnt fix it, you need new heater core
It's a big job! Get a manual on your car to do it right.
Mine is, but I'm not sure how to fix it.
The only fix for a leaking heater core is to replace it.
You can fix a broken linkage in a 1999 Navigator truck by adjusting its Gear Shift.
The only fix for a leaking heater core is to replace it.
one of my injector are leaking and can I fix that by replacing small o-ring? Thank you
You can fix a broken linkage in a 1999 Navigator truck by simply adjusting its Gear Shift.