Strange Car Noises You Should Pay Attention To. When you’re happily driving along and you randomly start hearing some really weird noise coming from your car, you shouldn’t dismiss it or ignore it. It means something and it’s not likely to be something good. There are a number of things that you should keep in mind when driving your vehicle, so that if you hear it making a noise, you can identify the possible reasons for that. Here are some examples of strange car noises that you should pay attention to when you hear them while driving. If you hear a hissing noise under your hood, then your vehicle may have some sort of leak in the vacuum line of in the cooling system. You need to focus on fixing the cooling system, so that overheating doesn’t become a problem. You also need to fix the leak so that the fuel economy issues and drivability issues don’t occur either. If you hear a clunking noise under the hood, while you’re driving over pot holes or bumps then there is a problem, most likely because of bad ball joints, worn control-arm brushings, or faulty stabilizer link-pins. If you hear a porcine squealing noise, then there may be a problem with the serpentine belt, cause by old, brittle rubber or a failing tensioner. If you hear a metallic screeching noise or a guttural groaning noise when you press on the brakes, then it’s probably because your brake pads are likely to have reached their life’s end. If you hear a clickety-clack noise, in your front wheel drive vehicle, while moving at low speeds then your wheels are turned, then that could mean that the constant velocity joints are giving up. If you hear a growling or moaning noise, then it may mean that your power-steering pump is going to give up soon. If you hear a knocking or clattering noise, then it may be a sign that your lifter isn’t pumping up or a sign that your valve clearances should be adjusted.. If you are looking for small engine repair services in Ottawa, mobile car battery boosting, lawn mower and lawn tractor repairs and tune-ups, or snow blower repairs then give us a call to book your mobile small engine repair today. We fix, repair, and tune-up small engines such as lawn mowers and snow blowers. The best part is that we come to you so no more waiting in line or traveling back and forth to fix your small engine equipment.