I first thought I was just low on anti-freeze due to the fact that the heat would get cooler once in awhile but a couple times I seen some steam coming out of the drivers side hood or wheel well but when I wold pull into a lot to check it out-- nothing-- but I could smell some anti-freeze and the carpet is somewhat wet but it is winter and we have had alot of snow, but I have also added more fluid due to gettting cool once in awhile again. How hard is it to replace if it is the heater core.
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Re: possible heater core issue
Removal of the dash and unpluging all of your wiring.It is a 6-7hr job when you have all the tools but you will need short and long extensions standerd and metric sockets.
I would say it is on a scale of 1-10, 10 being hardest it is like a 4 or 5. You can do it yourself all it takes is looking to see how things a bolted in. Just w/e you do do not unclip any orange wire connectors or yellow. One of those is your SRS and you could cause a air bag to blow.
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Your anti freeze was weak and froze.the belts squealing was due from the pump was froze (ice). Put your car in your garage and use a heat gun around the engine block to warm the metal so internal temperature will rise and melt the ice.once defrosted star the car and check coolant level.use hydromiter to check your anti freeze. Should be 30 to 40 below zero.
no heat is probably low coolant or bad thermostat,although you have fog and smell ! the heating and cooling systems are closed systems the only way the windows fog is the coolant is hot and steams inside the car due to some leak inside the heater core box. as well as the smell being present. Now it is possible that a little leak has occured where the coolant supply or return line connects to the heater core and is running into the car which is running onto the core and creating steam and smell. hopefully it is a easy clamp tighten fix for you.
Hate to tell you but it sounds like you have a blown upper or lower intake manifold gasket. This is a very common problem with these cars. I have had mine replaced twice in 150.000 miles. It has been recalled a couple of times 4 or 5 years ago. Its not a cheap fix it ran me about $800 to have them both replaced. If this is found to be the problem when your having it fixed have the garage working on it flush out the complete cooling system of the Dex-col type anti-freeze so it can be filled with regular anti-freeze when there done. Dex-col anti-freeze is the biggest reason these gaskets fail. It eats through and breaks down the gasket over time. But its best to have a garage flush out the system due to the fact the two types of anti-freeze cant be mixed at all or it will turn to a gummy substance and clog up and ruin water pumps , radiators, and heater cores but flushing the system good will keep from any small amount of Dex col being left in the system. In my opinion the regular anti freeze keeps the engine cooler and is twice as cheap not to mention that its gasket friendly
a heater uses the temperature of the cars water, running threw a heat exchanger if the heater core has failed water will not circulate threw the engine properly this will and can cause over heating as well as nothing blowing from the heater. good luck.heater cores are generally inexpensive parts to replace.
last thing you can check if heater core is ok. is the thermostat.
Check anti-freeze level and thermostat first.If not, there's some electronic/computer/sensor ********! I once replaced a heater core in a friends car only to find out she was low on anti-freeze the whole time but not enough to send an alarm or blinking light. You can have flucuations in heat when engine exurts pressure wi'll driving and while idling.