Automotive Repair Blog: Tips, Facts, and Fixes

Symptoms of a Failing Water Pump in Your Car

The water pump is a crucial part of your car's engine, moving the coolant through the radiator and around the engine for cooling. Its failure can result in all-out engine failure and total damage to parts.

While replacing a damaged water pump can be tasking, it's much better than purchasing a new engine. Here are some symptoms that the water pump in your car is malfunctioning.

Coolant Leakage

Another easily noticeable warning sign of a failing water pump is the coolant leaks from the water pump. You may find a green or orange substance on the ground under your hood, indicating an external water pump leak.

However, the leak could also be internal and not easily noticeable. In such instances, you can tell by the low levels of the coolant with no visible leak. And when you check the oil dipstick's appearance, and it looks frothy, you might be looking at an internal pump leak.

Inefficient Water Circulation in the Engine

The inefficient circulation of water throughout the engine shows that the water pump is failing. That can be due to a worn-out belt that drives the pump or damage to the water pump's internal components.

One such component is the impeller, which can wear over time from the contaminants present in the cooler. Also, cavitation can erode the component. Those two factors hinder the impeller's ability to circulate the coolant.

Overheating Car Engine

The engine will inevitably overheat once the water pump fails. If the low coolant and temperature warning lights on your dashboard come on, top up the coolant fluid compartment and check for leaks.

It would be best if you don't continue driving the car as you may damage the engine beyond repair. And while you might think that the heater can help siphon off some heat, that might not work since there's no pump to circulate the coolant.

Noises From the Hood of Your Car

Any unusual noises from the front of the car should always allude that something isn't right. A whining noise could imply a loose accessory belt that needs a simple fix like tightening, but growling or grinding noises at the engine could signal a bad bearing in one of the moving parts.

Multiple engine bearings, including the water pump's bearings, could fail. No matter the case, it's wise to call an expert auto repair professional for diagnostics and repair.

Steam and Smoke Emission

Steam or smoke emanating from the radiator or underneath the hood of your car could be a tell-tale sign that the cooling system is damaged. Whenever in such a scenario, pull over and call for help. A hot engine and an equally scalding, high-pressure coolant are potentially hazardous.

You shouldn't try to perform any diagnostics on a hot engine. If you must, you ought to wait for the engine to cool down before checking it. Otherwise, it's best to leave the poking around to the expert vehicle repair technicians.

In Summary

A failing water pump can seriously damage the car's engine if unchecked. As the engine gets hotter, the problem may become dire. We invite you to bring your vehicle into our auto repair shop for prompt water pump repair today.