It isn't heating correctly and i smell antifreeze. How do I check and replace a heater core in it?

Check heater core location for leakage. If no heat is coming out when you have the temp set to hot, chances are you have a blocked heater core. If you smell antifreeze from heater fan, you may have a leak in the box that contains the heater core. Your windows may fog up too, if you keep the heater on for a bit, but this happens more often if the air coming out is warm, or hot. Hope this helps!

heater core leaking.your heater core is leaking, also check coolant level, your loosing coolant through the heater core

Typically if your leaking coolant inside the car, it indicates your heater core is split and leaking. Replacing the heater core is quite the job. It requires removal of the dash board and heater box. i replaced one in a 97 Cirrus at work last week and it was a 6 hour job. If your not mechanically inclined i would definitley recomend phoneing around for quotes to local auto repair shops and getting it done profesionally.

it sounds as if you have two problems,one the heater core is plugged and two you have a heater core that is leaking.the leak is shown when you use the defroster by the smell and chances are there is a light film of antifreeze on the windsheild.and the plugged heater core is shown by no heat.check the radiator to make sure the coolant level is full and the overflow bottle is at the full level. as a low coolant level in the radiator will cause no heat.with the car warmed up(radiator coolant hot), check the heater hoses at the firewall were they enter the heater core they should be the same temperature from one hose to the other.if the coolant level is up and the hoses are the same temperature then the heater core is plugged.if the coolant temperature is the same from hose to hose but not hot to the touch the thermostat may be weak and needs replacing.either way the heater core will need to be replaced as it is leaking into the heater box assembly

If you smell antifreeze it may be 3 possibilities: 1. you may have a leaking hose/hose connector , or water pump. 2. your heater core is bad and needs replaced. Unless you know what you are doing I would highly suggest taking to dealer for heater core replacement. The dash and steering colum has to be removed to get to the heater core. This is not an easy job believe me (about-900-1200 job). If you have your heater core replaced then also replace the climate control door. This is good preventative maintenance and also a a dollar saver. I would have a pressure check run on your radiator as a first thought. All you may have is a bad hose and that can easily be replaced.

your heater core is definitley leaking and your blower is pushing the vapor into the cabin. It will only get worse. You can minimize the smell by not running your heater or defroster, but you wont prevent the coolant from leaking and potentially getting worse. Sorry to say, the core will need pulled and repaired or replaced. Sometimes stop leak additives will solve the problem if its not too severe. I have never been a fan of them, its only a band aid in my view. also if u got pets afoid leeting they smell the antifreeze very toxic can kill pets easily. hope this helps. rate above 4* cheers

heater core

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.

you could quick fix! but you will have no heat, 1st under the hood, look at the back of motor, follow all you're radiator hoses, take two hoses off the heater core stick a pipe that is big enough then clamp the pipe down. to both sides of hoses to the pipe you will eventually have to replace heater core!!

it sounds like your heater core is faulty(under the dash) does it smell funny in the car?if yes then your heater core needs replacement