A temporary fix would be to pull both heater hoses and connect them to each other, then don't worry about the heater core leaking. It's summer in the northern hemisphere, and you don't NEED a heater.
you can drive with radiator boiling but will do damage to engine if driven far better to let vehicle cool down, refill with coolant to get it to shop and have problem fixed or call a wrecker to tow it
No, but if it's leaking coolant, you'll need to ensure you don't lose to much, and refill as needed.
Replace the coolant, thermostat, turn off the A/c, in emergencies drive with the heater on, increase the air flow through the radiator, have your radiator checked for blockage.
You are using the wrong antifreeze! A "broken" heater core leaks. As the engine gets hot and coolant pressure rises, it will leak worse and worse, which may be when you notice it. Radiator stop leak may work for a while then the heater radiator ("core") may start leaking again. Or the stop leak may fix it. You may smell antifreeze odor inside the car. Don't breathe this stuff - it is deadly poisonous (destroys the liver)ESPECIALLY if vapors are inhaled. If you just HAVE to drive the vehicle to the repair shop, roll all the windows down and leave the heater/AC system "OFF" and the temperature control set to "COLD."
Your cooling fan may be broken. You may need some radiator fluid.
Need to check the coolant level in the Radiator, it is probley low on coolant. The heater core could be 1/2 stoped up. Can switch the hoses around on the heater core and go drive it, It will flush the heater core.
Yes, but you'll have to refill.
Generally, no. I'll try to answer this but it Depends on what you mean by "heater core going out". If the symptom is that you arent getting heat but the fan is running you may have one of several serious problems: low coolant, a broken water pump, or a clogged coolant system. Any of these can lead to an engine overheat, not good. If you have a puddle on the floor of your car or are smelling a sweet smell when you turn on the heater you could be breathing in toxic fumes. Do not check your coolant level by looking in your radiator with a hot engine; opening the radiator cap with a hot engine can lead to severe burns. If you are more specific with your question I can possibly give you a better answer.
To replace the Cavaliers water pump, drain the radiator. Remove the pumps drive belt. Unbolt the pump and take it off ( you might have to take the fan and shroud off to get to the pump.) Install the new pump and put the belt back on. Refill the radiator with antifreeze.
Pull the top off of the black box on the passenger side of truck under the hood. Remove the two heater hoses. Remove the old heater core. Reverse the process. Top off the radiator with antifreeze and check again after a test drive. Enjoy the heat.
broken drive belt
Yes, as long as you connect the incoming and outgoing heater hoses that were connected to the heater core together. You will not have a functioning heater or defroster but otherwise it will be fine to drive.