Ok,so heater blowing cold air and with that overheating.
The problem with your Continental is likely a leaking headgasket.Given that your car is also overheating, it is a common concern that the headgaskets leak.There is probably an internal leak where air is getting into the cooling system which will cause the lack of heat problem that you've described.
There are testers available for checking for combustion gases getting into the cooling system.They are commonly refered to as block testers.
The repair for this problem will be headgasket replacement.
Basically to replace head gasket it takes roughly 4-5 hours to do both headgaskets.Make sure that you change the oil after replacement ,if there has been coolant contamination,you may have to change the oil more than once before driving.
For car AC related and Heater related solutions. You can refer the options mentioned below:---
Car AC Blows Warm Air ?
How to test AUTO AC pressure?
AUTO Air Conditioning Troubleshooting?
AUTO A/C COOLING PROBLEM?
Fixing refrigerant leak?
How to locate Car AC Refrigerant leak?
CAR AC INTERMITTENT COOLING?
What causes INTERMITTENT COOLING on Car AC system?
Car AC making Noise?
BAD ODOR ON CAR AIR CONDITIONER?
How to Recharge Car's Air Conditioner
http://repairhelpcenter.blogspot.com/2011/10/how-to-recharge-cars-air-conditioner.html
The problem with your Continental is likely a leaking headgasket.Given that your car is also overheating, it is a common concern that the headgaskets leak.There is probably an internal leak where air is getting into the cooling system which will cause the lack of heat problem that you've described.
There are testers available for checking for combustion gases getting into the cooling system.They are commonly refered to as block testers.
The repair for this problem will be headgasket replacement.
Basically to replace head gasket it takes roughly 4-5 hours to do both headgaskets.Make sure that you change the oil after replacement ,if there has been coolant contamination,you may have to change the oil more than once before driving.
Get original or branded parts,local non branded cheap auto parts don't last long and same problem occurs in few days or months.Branded Auto parts are bit costly,but they last long and give good results.
This will help.
Thanks.
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