Hi, you probably have air in the system. Park on an incline, turn the heater on, open the radiator cap, start the engine, and let it run until the thermostat opens. Keep the radiator full and when the level stops gong down your heater should be working again.
what happens if that doesn't work then what would you suggest
I would have to ask you more questions. Are you the same original customer, as your account name has changed slightly? If yes, why did you change the thermostat? Is the car overheating? If yes, it's possible you have a bad head gasket. This can let combustion gasses into the cooling system that will continually form bubbles that may block off the heater water circuit. Normally when this happens, you would see bubbles coming up after performing the steps I originally recommended.
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You have a lassic case of air trapped in the cooling system. There should be a small cap on the upper radiator hose to allow you to fill the engine block. You only filled the reservoir, radiator and rad hose down to the thermostat. You did not fill the block. If you can't burp it, go to a shop with evac/fill equipment, they can purge the air for about $75.
Please rate if this helps. Good luck. report back.
I already purged the system and everything is working fine but the heater
find the heater hoses in the engine compartment and see if they are both hot when the engine is at operating temperature. report findings.
Also, read owners manual to see if you have a degas bottle instead of a coolant reservoir. Does it have a pressurized cap on the plastic bottle. If yes, it is a degas bottle that purges air by itself from the cooling system.
I have a coolant reservoir. To purge the system on this car there is a service point on top of the upper radiator hose the you can open with a key and that's how it releases air out of the system. I'm not quite sure where the heater hoses are located
SECTION 303-03: Engine Cooling 2000 Lincoln LS Workshop Manual
DESCRIPTION AND OPERATION
The degas bottle:
provides a location for system fill.
contains coolant expansion and system pressurization.
provides air separation during operation.
replenishes the engine coolant to the system.
On 3.0L engines
Open the engine air bleed.
On all engines
Open the heater air bleed.
Add coolant to the degas bottle allowing the system to equalize until no more coolant can be added.
So, you have 2 air bleeds to open.
what does the cap look like and where is it located to where you can feel the engine block I see nothing in that area
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I already purged the system everything works fine but the heater I have been driving the car for a while what else could be the problem
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