Yes it can cause it to overheat but first check your thermostat. That would be the 1st cheapist thing to do before you did anything else. I got an 85 regal(overheating) and the thermostat or the heater core is the problem im getting them both replaced tomorrow and will let know of how it runs.
No, a clogged heater core will not make it overheat. A leaking heater core will.
It could, but I'd start by checking the timing. If it's off the car will overheat, and that's easy to adjust. Heater cores are a grade-A pain to replace because you have to take apart the dash to get to them.
Car will make when running even if heater core is not burned out.
It may need a heater core.
You heater works from water flowing from your radiator to the heater core, you may have a leak in your heater core. You most likely also smell antifreeze inside the vehicle. It is most likely casued by a leaky heater core. Unfortunatly depending upon the make/model/year of your vehicle a heater core can be difficult and/or expensive to replace.
There are hoses in the engine compartment that go to the heater core. You can remove the intake and out going hoses from the heater core. You have to either block off these hoses or connect them together, depending on the make of the vehicle.
To change the heater core on a Pontiac Aztek, locate the heater core on the firewall, passenger side of the vehicle. Remove bolts on the firewall and the clamps on the hoses. Take out the old heater core and replace with new. Tighten bolts and hose clamps. Then check to make sure the radiator is full of antifreeze.
Open both front doors, remove everything, replace heater core, reinstall everything. Don't laugh, that is pretty much what you have to do. If you want to tackle the job yourself I would suggest purchasing a shop manual for that vehicle to help you through step by step.
Called a Heater Core in North America. This is a little radiator to make the air in the car warm
I'm sure you are talking about the passenger side. The heater core must be leaking. That is the only thing that will allow antifreeze into the cab. Check and make sure that the heater hose's that clamp to the heater core out under the hood is tight. If they are then replace the heater core.
Thermostat is not allowing the engine to warm up enough to produce heated coolant to the heater core. Heater control valve is faulty or not opening. Low coolant level; coolant level is insufficient to pump into the heater core. Blocked or damaged heater core. Start with the thermostat, that's very common. While you're at it, make sure the coolant level is up. After that, if you suspect a blocked heater core, try backflushing the heater core. Turn the heat on full to open the valve, then with the heater hoses removed, run water BACKWARDS through the heater core. As you remove the heater hoses. Don't use much water pressure, if you go over 15 PSI pressure you could blow the heater core and then you have real problems. Typical water pressure at a house is 50 to 120 PSI, so if you use your water hose make sure you control the pressure.
Yes, A bad thermostat can keep the hot coolant from reaching the heater core... also, low coolant levels or a clogged heater core can make your heat stop working.