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Why is my engine overheating but my radiator is cold?

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Why is my engine overheating but my radiator is cold?

If radiator is cold, it means there is a blockage and water/coolant isn’t passing through it. Take it apart and there are radiator cleaner companies that could do it for you for quite a low cost, or even try and source a new OEM radiator. Might be cheap enough.

Why is my Subaru Impreza overheating?

While there are a variety of reasons your Subaru Impreza is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat.

What can cause a Subaru to overheat?

5 Reasons Your Subaru May Overheat

  1. Radiator Trouble.
  2. Damaged or Blocked Hoses.
  3. Malfunctioning Thermostat.
  4. Low Coolant.
  5. Water Pump Trouble. The water pump circulates coolant, allowing it to absorb heat from the engine and get cooled off by the radiator.

What would cause a car to overheat when idling but not driving?

A Broken Radiator Fan If your car begins to overheat when idling, but the temperature gauge moves back down once you get going, it’s most likely due to a broken radiator fan. However, when your car is sitting still, the radiator fan should kick in, keeping the air moving over the radiator to help cool down the coolant.

How do you tell if your radiator is clogged?

5 Signs That Tell You Your Radiator Is Clogged

  1. Leaking coolant. Scroll to continue with content.
  2. Discolored and thicker coolant. You know your coolant’s original color, don’t you?
  3. Damaged water pump.
  4. Excessively high gauge temperature readings.
  5. Blocked, bent, or damaged radiator fins.

What year Subaru has head gasket problems?

When Did The Subaru Head Gasket Problems Start? The Subaru head gasket issues have been known to affect a large number of Subaru models and makes throughout various years. The most commonly affected models are the Impreza, the Legacy, and the Outback models between the years of 1999-2004.

How do I know if my Subaru head gasket is bad?

7 Possible Signs of a Bad Head Gasket

  1. Milky Engine Oil.
  2. Overheating Engine.
  3. Bubbles in the Radiator.
  4. White Exhaust Smoke.
  5. Blue Exhaust Smoke.
  6. Cylinder Misfire.
  7. Low Coolant. If the coolant in your vehicle is lower than it should be, a head gasket may be the culprit.

How does a Subaru radiator keep the car cool?

There are three radiator components that make it possible for coolant to pass to the reservoir. The pressure valve, which allows coolant to pass to the reservoir as the vehicle gets warm. The vacuum valve, which brings coolant to the radiator as the car cools down. The radiator cap, which fastens the radiator shut.

Why is my Subaru 2.5L engine leaking coolant?

The likely reason is that coolant is being sucked into the head gasket and ejected from the exhaust. Signs of this occurring include coolant residue on the spark plug insulator, which indicates that coolant has entered the cylinder; and milky brown engine oil, which would prove that the head gasket has leaked.

Are there any heating problems in a Subaru?

Heating Problems on Newer Subaru Models. Cars made by Subaru since 2005 are likelier to leak oil than coolant, but the biggest abnormality in the newer models their tendency to develop warped cylinders. This is due to the reordering of engine components within the newer vehicles, which have larger combustion areas.

What causes a Subaru radiator to get clogged?

As with other vehicles manufactured overseas, clogs can easily form in the cooling tubes of Subaru radiators due to very thin cross-sections. Despite the fact that most original equipment (OE) coolants are formulated to last beyond the 100k mileage mark, the anti–electrolytic additives can degrade and cause corrosion within the radiator.