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The most common indications that an automotive heater core is failing include a foggy windshield, steam coming from vents when the heater is switched on, a water surging sound inside the dashboard, a sweet-smelling aroma... More »

www.reference.com Vehicles Car Parts & Maintenance

Heater cores are typically replaced whenever something goes wrong with them, such as a leak, according to AutoEducation. There is no definitive time to replace a heater core, as they are not a part of typical scheduled m... More »

www.reference.com Vehicles Car Parts & Maintenance

Instructions for removing the heater core of a vehicle include disconnecting the negative battery terminal, draining coolant from the radiator, removing all hoses and attachments, and then unmounting and removing the hea... More »

www.reference.com Vehicles Car Parts & Maintenance
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The main symptom of a failed heater core in a car is a lack of heat from the heater or defroster. More condensation than usual on the windshield and damp floor mats can signify a blocked core. Orange or green drips from ... More »

www.reference.com Vehicles Car Parts & Maintenance

Signs of bad ball joints include hip pain ranging from mild to severe, limited movement in the affected hip, swelling, and a creaking sound in the hip. There are multiple conditions that can affect the hip and cause bad ... More »

www.reference.com Vehicles Car Parts & Maintenance

A bad water pump can make a rubbing, grinding or whining sound. A water pump is relatively silent when it is operating properly. If it makes any loud noises, it is an indication that the bearings are going out. More »

www.reference.com Vehicles Car Parts & Maintenance

A sweet-smelling aroma and antifreeze smell could indicate that the car's heater core is leaking. Other common signs of a bad heater core include a foggy windshield, a water surging sound inside the dashboard and wet car... More »

www.reference.com Vehicles Car Parts & Maintenance