Why is my car overheating with a new thermostat and water pump?
As for the vehicle still overheating, if all of the parts you have replaced are working fine, then you may have an air flow issue through the radiator. If it gets hot at all times, then it may have a clogged radiator, or more commonly a leaking head gasket.
Why does car overheat when air conditioner is on?
Engine overheating with AC on is generally caused by one of two possibilities. One, is increased engine load caused by a failing AC compressor. Plugged or blocked radiator condenser fins, fans not working efficiently or a water pump that is not circulating coolant could all cause overheating with AC on only.
Can a water pump cause a car to overheat?
A dead or dying water pump cannot circulate coolant through your vehicle’s engine and, as such, the engine will overheat. The hotter the engine gets the greater the chance of serious damage, including a cracked engine block and damage to the cylinders, pistons, and head gasket.
How do you tell if a thermostat is bad in a car?
Symptoms of a Bad or Failing Thermostat
- Temperature gauge reading very high and engine overheating.
- Temperature changing erratically.
- Coolant leaks around the thermostat housing or under the vehicle.
What causes a thermostat to go bad in a car?
The thermostat on a vehicle is the component that opens and closes to allow coolant to flow in and out of the engine. Sometimes the thermostat fails and must be replaced; there are four main reasons for failure: overheating, sludge, defect and age. …
When should you replace car thermostat?
Aside from this type of preventive maintenance, a thermostat doesn’t need to be replaced unless it stops opening and closing when it’s supposed to. If it sticks in the closed position, that traps coolant in the engine so that it overheats.
Can a faulty thermostat cause coolant loss?
A coolant leak can be due to a stuck-closed thermostat. The continuous closure of the thermostat along with the pressure acting on the coolant can result in coolant leaking around the thermostat housing. In more serious scenarios, the coolant might leak from both hoses surrounding the radiator.
How much does it cost to replace car thermostat?
The Best in Auto Repair The average cost for thermostat replacement is between $197 and $227. Labor costs are estimated between $115 and $145 while parts are priced at $82. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.