While prices vary by location as well as the make and model of the vehicle, the 2014 national average cost to replace a head gasket is between $1,139 and $1,462, according to Repair Pal. Parts for the repair are relatively inexpensive at $55 to $93; however, the job involves a great deal of labor.Know More
As a part of the repair, mechanics generally inspect the entire cooling system. Failure to do so often leads to a recurring problem. The mechanic also inspects the cylinder heads and machines them if necessary. Once inside the engine, they often find additional, yet necessary repairs that add several hundred dollars to the cost of repair.
Head gaskets often fail when engines are overheated. A lack of coolant due to a leak or broken hose often leads to the initial problem. Head gasket failure also occurs due to high mileage and aging of the vehicle. When the gasket fails, the vehicle often runs rough when started, especially on the first start of the day. As the engine expels moisture from the cylinder, the idle tends to smooth. Coolant leaking into the oil gives it an appearance like chocolate milk, and the dipstick sometimes shows an abnormally high level of oil. The car often produces a white smoke from the tailpipe with a sweet antifreeze smell.Learn more about Car Parts & Maintenance
A blown head gasket causes the vehicle to lose compression and sometimes makes starting difficult. Continuing to operate a vehicle with this issue leads to complete engine failure as coolant and oil mix. Combustion gases cause corrosion of the cooling system while water causes corrosion in the cylinders, according to AutoRepairKey.com.Full Answer >
Liquid glass can be added to a coolant system on a vehicle to seal leaks caused by a blown head gasket. It is a sodium silicate that crystallizes in cracks when it dries, providing a temporary barrier and is most effective when used on cars with iron cylinder heads.Full Answer >
The location of an IAT sensor in a vehicle can vary from inside the intake air tube, located between the throttle body and the air filter box, to inside a mass air flow sensor. Other locations could also include inside the MAP sensor or an air mass meter.Full Answer >
On average, car batteries last for up to four years depending on location, owner's driving habits, type of vehicle and other conditions. Normal conditions for a battery involve having full charge cycles, lack of extreme temperatures, a reliable and consistent charging system and only a small amount of other accessories.Full Answer >