The radiator manages a vehicle’s temperature. Whether you have a new or used radiator, you may face certain issues that warrant repairs or replacement. Here are a few common problems with this auto part and how to resolve them.

What Problems Car Radiators Frequently Experience

1. Low Coolant Level

A radiator can overheat if the car’s cooling system malfunctions due to low coolant levels. Check the level and top off if necessary. 

However, if this happens even when the vehicle is idle, the radiator fan may be broken. This auto part is supposed to keep the radiator cool by transferring air into it, so if it’s broken, you may need to get it replaced to restore the functionality of the vehicle. 

2. Rust 

Overheating could also indicate that your used radiator has started gathering rust. Since this metallic component is filled with liquid, it’s vulnerable to corrosion.

To resolve this issue, drain the coolant and add radiator cleaner to the tank according to the product’s instructions. You may have to drive the vehicle for a few days or flush the system a couple times to remove all rust. 

3. Mineral Buildup 

Mineral deposits can also accumulate inside radiators. Thick and sticky, these can get lodged in the radiator’s pathways, preventing the coolant from reaching the system. Bent or twisted hoses produce the same effect.

Usually, performing the radiator flush mentioned above will remove mineral buildup. If the hoses are broken, you may need to have them replaced.

4. Faulty Thermostat or Water Pump 

The thermostat determines when the water pump should push cooling liquid into the radiator. If the thermostat constantly indicates a low temperature, or the water pump isn’t responding to it, the radiator will likely overheat.

In most cases, this issue can’t be repaired. You may need to have these components replaced. 

5. Leaks

If you notice sweet smells coming from your car, the radiator may be leaking. Leaks can develop on the unit itself or its hoses. Either way, this will cause coolant to flow out, so your engine may overheat. 

An auto mechanic may be able to patch the hose. If the damage is in the radiator, you may need to replace it.

 
If you’re looking for a cost-effective radiator replacement, go to Stewart’s Used Auto Parts in Barkhamsted, CT. They carry used radiators to replace your unit with a functional part without putting a dent in your wallet. They carefully inspect all auto parts they sell to ensure they’re fully functional and high-quality. Visit their website to learn more about their replacement parts, or call (860) 379-7541 to ask about their inventory.