How to tell if your thermostat or water pump is bad. Luckily, a bad water pump will usually exhibit symptoms ahead of time before any serious damage is done. A bad thermostat exhibits similar symptoms as a bad water pump would do; this includes overheating, loud whining noise, and a significant drop in engine performance. Aug 27, 2024 · In this article, we will discuss how to tell if your water pump is bad or if your thermostat is malfunctioning. Jul 11, 2025 · Learn how to tell if your water pump or thermostat is failing—and why replacing both is often the best fix. Here are signs of a bad water pump that you should watch for. As a DIY enthusiast, it’s important to know how to tell if your water pump or thermostat is bad so you can address the issue before it becomes a major problem. Water pumps and thermostats are crucial components of a vehicle’s cooling system. . Mar 24, 2022 · This article explains how to tell if your thermostat or water pump is bad. So, buckle up and get ready to learn how to tell if your thermostat or water pump is bad. Jun 28, 2023 · In this article, we’ll explore the common signs of a bad thermostat or water pump, so you can diagnose the issue and get your car running smoothly again. We will cover the symptoms, causes, diagnostic tests, and steps to address these problems. And a water pump on its own is much more affordable in most cases but can vary widely, ranging from under $30 to more than $800. When these parts begin to fail, it can lead to serious engine damage and overheating issues. bucqp pmmvs gkmgu encbvhw stymr wfkv gjhxmrw ukufko bxabl tovx