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Why is my car not producing heat?

Author of the blog (work in a car repair shop)
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Why is my car not producing heat?

Low coolant: Whether caused by a leak or water evaporation, low coolant is the most common source of poor heater output. Thermostat: A stuck-open thermostat prevents the engine (and coolant) from heating up. Heater core: A clogged heater core restricts coolant flow, giving up little or no heat.

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FAQ for the last Day

  • How does a water pump work in a car?
  • On most vehicles, the water pump is driven by the engine's serpentine belt, which is connected to the pump's pulley. The pulley and belt work together to move coolant through these steps: Coolant is sucked in at the center of the impeller. Centrifugal force pushes it out through the impeller blades.A car’s water pump uses impeller blades and centrifugal force to move the coolant through the variou...


  • What happens when a water pump fails?
  • 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.Can you drive with a bad water pump? Heating and cooling may be affected by the vehicle. The car may begin to overheat as...


  • When to change the water pump in your car?
  • Typically, the recommended interval for replacing the water pump is every 60,000 to 100,000 miles, depending on various factors, such as the car model, road and weather conditions, and driving behavior. Therefore, if you plan to invest in a used car, ensure you verify whether the seller replaced the water pump.How long do water pumps last in cars? The expected lifespan of a water pump is 60,000 mi...


  • Does check engine light come on for overheating?
  • The most obvious sign of an overheating engine is a rising temperature gauge, especially if the check engine light also comes on. Smoky steam coming from under the hood means that the coolant has bubbled out of the radiator and that you need to pull over immediately - or major engine damage may occur.The engine coolant is overheating if it’s around 240 to 250 degrees.This is a critical light! It m...


  • What are 3 simple things to check if your car is overheating?
  • Steam (often looking like smoke) coming from the front of the vehicle under the hood. The engine temperature gauge in the dashboard or driver console spiking to “H” or moving into the red area of the gauge. Strange smells or odors emanating from the front of the car, particularly near the hood.What is the first thing you check when a car is overheating? If your vehicle overheats in normal weather...


  • What is the most common reason for check engine light?
  • A loose fuel cap is one of the most common reasons why the check engine light turns on. The cap is a crucial part of a car's fuel delivery system. It notably prevents gasoline fumes from leaving the fuel tank, and it helps keep the whole system under the correct pressure.MOST COMMON REASONS YOUR CHECK ENGINE LIGHT IS ON Loose or faulty gas tank cap. Loose or faulty gas tank caps can be the case. ....


  • Can bad spark plugs cause overheating?
  • Incorrect ignition timing is most extreme cases of a poorly running engine that can create extra heat but even things like worn spark plugs, a clogged fuel system or a dirty airflow sensor can cause your engine to create extra heat and run hot.Sparkplugs will not cause the engine to overheat.How can you tell if a spark plug is overheating? Blisters on the insulator tip, melted electrodes, or white...


  • What triggers check engine light?
  • Your spark plugs are responsible for igniting fuel in your vehicle's combustion chamber. They get their spark from the ignition coil by way of the spark plug wires. A problem with either your spark plug wires or the spark plugs themselves could cause your check engine light to come on.What is the most common reason for check engine light? Oxygen Sensor A faulty oxygen sensor will return a check en...


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