My 2002 F150 is leaking antifreeze

Is your antifreeze mixture ratio correct? You have to mix it with water by the capacity of the cooling system. Not enough antifreeze and you get ice in the core. Too much antifreeze is just as bad. Try this... when you expect it will get cold overnight leave the heater controls on heat with the highest temperature setting. Then shut off the truck. You might want to wrap the exposed heater hoses under the hood with insulation like you would use on an outside water faucet

Does it leak any antifreeze on the floorboard or anywhere? Common problem with the jeep cherokee that the heater or A/C will cause it to leak and had to replace the whole unit.

When antifreeze finds it's way onto the floorboard of the vehicle, it's more than likely a leaky heater core is the culprit. The heater core is like a small radiator located under the dahsboard mounted inside a plastic housing. The hot antifreeze running through it creates the heat that is delivered to you whenever you turn on your cars heater. When the heater core develops a leak, the lost antifreeze seeps through the seams of the heater core housing and onto the floorboard of the vehicle. You have 2 options: You can have the core replaced by a professional, (cost approximately $250-$350), or you can by-pass the heater core by removing the 2 rubber hoses that connect to it and splicing them together. Both procedures will stop the leak, but by-pasing will leave you with no heat at all. By-passing is much less expensive than replacing. So if money is more of deciding factor than having heat, then bypass!

You should look under the dash on the passenger side to see if there is any evidence of antifreeze on the bottom of the heater plenium. What usually starts as a small leak in the interior of the plenium will eventually lead to the heater core leaking all over the interior. You are getting steam and the smell becasue the is a small leak now inside that enclosure with the subsequent results.

your going to have to pull back carpet and clean any liquid up and start your truck and watch for original source of leaks,have you removed the plastic cover of the heat work on the drivers side to see if the heater core is leaking and running over to the drivers side.

the windshield could be leaking behind the dash,a good way to check is put the fan of the heater on,hot or cold and get a solution of soapy water and apply to the outer edges of the windshield and look for bubbles.

Usually a smell of antifreeze in the cab when the heater is running is a sign the heater core is leaking. Just becasue you dont see a leak at this time doesn't mean there isn't one. It might small enough that the haet from the core is burning off the leaking antifreeze. I would suggest replacing the core before you get in one day and there is a puddle on your floorboard. Or if you go to a local parts store and rent a cooling system pressure tester, wait until the vehicle is cold, pressure the system to 12 lbs and then check for leaks. Hope this helps you out......

if you have a puddle of water on your floorboard and you dont know where its coming from that would most likely be your problem because the same thing happened to my cavalier and i had to replace it its in the plastic shroud behind the middle console towards the bottom and the 2 heater core hoses you can see if you pop your hood and look behind the motor around the area where your rack and pinion is they arent hard 2 miss theyre 2 small hoses right next to each other and theyre easier to get off from underneath the car

Your heater matrix has fractured.Suolution fit new matrix.Or you can have it bypassed.But you want get any warm air from the heater if its bypassed.But it will stop the water entering inside your car.

leaking heater core or hose that feeds it. look for hoses that pass thru the firewall to passenger compartment. Most times the hose is clamped to a pipe at the firewall so you may just need a hose