Auto Science Blog

If you notice a symptom of engine trouble, you’ll want to bring it to the mechanic’s attention ASAP. By acting quickly, you’ll have the best chance to address the issue before it escalates and potentially leaves you stranded and needing more expensive repairs. At Auto Science, we provide expert engine repair in the greater Lewisville area. Here’s a look at five warning signs of an engine problem. Check Engine Light The check engine light on your dashboard serves as a warning system for a variety of potential issues. While the light may come on for minor reasons such as a loose gas cap, it can also indicate more serious problems. Common reasons the check engine light comes on include issues with oxygen sensors, MAF sensors, and catalytic converters. Strange Noises There’s cause for concern if you notice sounds like knocking, rattling, hissing, or grinding. Knocking noises could signify issues with the engine's combustion process, while rattling might indicate loose components. Hissing could point to a leaking vacuum hose, and grinding noises might suggest problems with a water pump or starter motor. Abnormal sounds should be inspected promptly. Overheating Problems with your cooling system can lead to overheating, which can cause major engine problems. Signs of cooling system trouble include a spiking temperature gauge, coolant leaks, and steam emerging from under the hood. It’s important to promptly fix issues with cooling system parts such as water pumps, thermostats, radiators, and hoses. Discolored/Excessive Exhaust Smoke The smoke’s color can help with identifying the underlying problem. Blue smoke typically indicates burning oil, which could be due to worn piston rings or valve seals. White smoke might suggest coolant entering the combustion chamber, indicating a potential head gasket failure. Black smoke is often a sign of an overly rich fuel mixture. Fluid Leaks Leaking fluids under your vehicle should never be ignored. Engine oil leaks can result from worn gaskets, seals, or damaged oil pans, leading to low oil levels and potential engine damage. Coolant leaks may indicate a failing radiator, hose, or water pump, which can result in overheating and engine failure if left unaddressed. Fluid leaks should always be resolved ASAP. Engine Repair in Lewisville, TX For auto repair in Lewisville, TX and the surrounding area, contact Auto Science at  469-382-9522  . Feel free to give us a call today to schedule an appointment!

Your alternator does the important job of charging the battery and powering electrical systems while the engine is running. If you suspect that an issue is developing with your alternator, you’ll want to address it quickly so it doesn’t get the chance to escalate and create an unsafe situation. At Auto Science, we provide expert alternator replacement and auto electric repair in the greater Lewisville, TX area. Here’s a look at five symptoms of an alternator problem. Warning Light on the Dashboard When alternator trouble is emerging, it often triggers a warning light. Commonly, this light reads ALT or GEN or illuminates in the shape of a little battery icon. Warning lights should always be promptly investigated so the issue can be addressed before it worsens. Strange Noises A healthy alternator operates quietly, but a faulty one may produce unusual noises. These can include grinding, whining, or squealing sounds, often caused by worn-out bearings or a loose belt. Dimming or Flickering Lights One of the most common signs of alternator trouble is dimming or flickering lights. If you notice your headlights, dashboard lights, or interior lights behaving erratically, it could indicate a failing alternator. The alternator provides power to these lights, so fluctuations in brightness often point to an issue with its output. Difficulty Starting the Engine If your vehicle struggles to start or requires multiple attempts before the engine turns over, the alternator might not be providing enough power to recharge the battery properly. Electrical Accessory Issues Since the alternator powers various electrical components in your car, problems with these systems can indicate alternator trouble. For example, you may be dealing with a faulty alternator if your power windows operate slowly, your radio cuts out intermittently, or your air conditioning system performs poorly. Auto Repair in Lewisville When you need auto repair in Lewisville, TX and the surrounding area, contact Auto Science at  469-382-9522  . At our nearby auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call today to schedule an appointment!