2002 nissan altima heater core

What are the symptoms of a bad heater core?

These are some of the most common symptoms that will alert you to heater core problems:

  • Inoperative Heater. Over time, the heater core can become clogged with sediment from the cooling system. …
  • Slimy Film Build-Up on the Windows. …
  • A Sweet Smell Suddenly Fills Your Car. …
  • Overheating Even When it’s Cold Inside.

Can I bypass the heater core in my car?

You basically take the two hoses off the heater core, you stick them together and you’re done. That way, the coolant will continue to circulate, even though it no longer goes through the heater core. And bypassing the heater core should have no effect at all on the performance of the engine, Charles.

Is a heater core expensive to fix?

Replacing the heater core can be an expensive job, and usually costs between $564 – $927 for parts and labor. The parts aren’t particularly expensive, normally costing $80 – $234, but the location of the heater core means that labor costs tend to be quite high.

What does heater core leak smell like?

There’s a sticky sweet smell.

Whether or not you get fogged out, when your heater core breaks you’re bound to smell a sweet, humid aroma. This is the smell of coolant and a sure sign that radiator fluid is leaking. You might also catch a whiff of coolant around the outside of your vehicle.

What causes heater core failure?

The #1 cause of heater core failure is cooling system neglect. … Changing coolant on time is mandatory to protect all the metal and plastic components in your car’s cooling/heating system. Neglecting this service or performing a cooling system flush with the wrong coolant can cause damage years down the road.

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Does AC use heater core?

Like your engines cooling system radiator, the heater core can suffer some of the same issues. … Often times the heater core is buried under the dashboard, and replacing it, is a major job. The air conditioning system in your car is comprised of a compressor, condenser, expansion valve and evaporator.

How long does a heater core last?

That number is all over the board depending on how the coolant has been maintained, whether the core is grounded or not, and the quality of the core. I’d expect 5-7 years would be on the short end; I just replaced the original heater core in mine after 21 years of service. I’d guess that’s on the long end.

Is a heater core hard to replace?

When working properly, the heater core sends heat to the cabin. When it leaks, it must be replaced. Getting the job done ranges from easy to difficult, depending on the core’s location inside your car.

Will Stop Leak fix a heater core?

Fixing a leaking heater core will always be much easier than replacing one. Since it is only a small leak in the heater core, we recommend simply sealing that leak and leaving your heater core in place. You can do this by simply by adding BlueDevil Pour-N-Go to your vehicle’s radiator when your vehicle is cold.

How do you check for a heater core leak?

Start your engine, allow it to warm up for a minute and turn the heater lever to full blast. If the system is ok, you should feel a blast of cool air. Now, turn the heater lever to full heat. If you feel warm or hot air flowing into the cabin, your heater core has no leaks.

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Why is the floor in the back of my car wet?

It’s usually caused by an HVAC system component in the dashboard leaking into onto the floor on the passenger’s side. As it works to keep your car cool, the A/C system creates a lot of condensation. This condensation normally drips down the evaporator drain hose and onto the ground harmlessly as you drive.

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