Re: 01 mercury villager smell antifreeze inside, no heat.
If it is just an odor I think I would try some cooling sytem sealant. Usually costs about $3 to $5.00. With the engine running and hot with heater on, open the container and pour into the overflow and let engine run for another 15 minutes or so. DO NOT REMOVE THE RADIATOR CAP; YOU MAY GET SCALDED!!!!!!! Do not open the sealant container before you are ready to use it, it hardens quickly.
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If you are smelling antifreeze inside of the vehicle there is a good chance that flushing it will make the leak worst. Are you getting a film on the inside of the windows? and is the passenger floor getting wet? These are both good indicators that the heater core is leaking and in need of replacement.
This is usually due to a leak in the heater core. The antifreeze will leak from the core and then either fall into the condensate pan and leave the vehicle or will drip out and saturate the carpeting on the passenger side of the vehicle. You can bypass the heater core on most cars by re-routing the heater hoses under the hood until you can replace the core... but you won't have any heat either. Heater cores on most cars are difficult to access and replace. You may even need to evacuate and recharge the AC system to perform the job.
If you smell antifreeze in the cabin then it could be a hose loose or the heater core has a leak/pressure leak - in which case get it looked at ASAP because it could lead to overheating of the engine.
Check the hoses going to the heater core and make sure they are not cracked or disfigured and are on tight. Any moisture near or on the core (and/or corresponding corrosion) is an indication the hoses are ot doing there job or the core is leaking.
BTW, If you are loosing coolant (due to a faulty heater core) it could "explode" (relax, you are basically safe on the other side of the dash-board), but the result could be a destroyed heater core and a very expensive repair bill - I know because its happened to me!
You have an antifreeze leak. Probably in the heater core (a small radiator inside of the dashboard that heats the air as it passes through). When the engine is running do you see any steam around the engine? Or smell the sweet antifreeze smell around the engine? If not then it is probably the heater core instead of a hose or somewhere on the engine. Does this truck have the option to switch the heater to recirculate he air inside the cab instead of drawing in outside air? If it does then you can set it to recirculate the air inside and if it still has the smell then its definitely the heater core. Often with a leaking heater core the passenger side floor and firewall area will get wet, but not always.
do you smell antifreeze? does it steam up windshield when defrosters are on? is there antifreeze on the floor. if your answer is yes to any of the questions i asked its heater core. the best thing to do is go to a web site of any major auto parts store they will have all the diagrams and instuctions you will need to do this.
smell inside of the car, when the a/c is on.
It's only can be 2 things.
1- The a/c evaporator is leaking freon.
check if the air condition is not loosing freon.
2- The heater core is leaking antifreeze.
Check the level of the radiator, see if any visual leak on the heater core. or if there coolant under the car. about passanger side..
If you found repair as need.
I hope this can help to start diagnostic your problem.