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What are the symptoms of a faulty Focus water pump?

2 Answers

OGenesis

07/29/25 12:59am

If the water pump of a Focus is damaged, the following symptoms may occur: 1. Unstable idle speed: If there is an issue with the water pump's rotation, it will directly affect the engine's speed, resulting in unstable vehicle speed. This usually occurs after the engine has been running for a while, and if the resistance is too great, the engine may stall. These symptoms can initially indicate a damaged water pump. 2. Coolant leakage: The area near the water pump on the engine is prone to leaks. In such cases, coolant may leave traces around the water pump's ventilation holes. An engine lacking coolant will "overheat," leading to increased wear and, in severe cases, smoke or even fire. At this point, it is essential to check whether critical parts of the cooling system (such as the cooling fan, radiator, water pump, etc.) are damaged. 3. Noise issues: A damaged water pump may produce abnormal sounds. The cause of the noise is likely due to internal bearing damage or a loose impeller that has detached from the shaft, creating unusual noises.

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DeKeira

08/12/25 5:10am

I remember last time my Ford Focus had a water pump failure, and the symptoms were quite obvious. At first, the engine kept overheating, and the temperature needle on the dashboard kept climbing—normally it should stay in the middle, but mine went straight to the red zone. Then, after parking, there was a puddle of green coolant on the ground, right near the water pump. Every time I started the car, I could hear a squeaky noise, like the bearings were worn out. The worst part was when steam suddenly erupted while driving on the highway, scaring me into pulling over immediately. After the repair, the mechanic said the water pump was leaking, preventing the coolant from circulating, and the engine was almost ruined. I recommend everyone regularly check their cooling system—don’t wait for small issues to turn into big problems. Replacing the water pump cost me a couple thousand, but it’s much cheaper than replacing an engine. Pay attention to unusual noises and coolant leaks during daily use—early detection can save you a lot of money.

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