The check engine light is one of the most recognizable warning signals on your vehicle’s dashboard. While it may not always seem urgent, it indicates that your car’s onboard diagnostic system has detected an issue that requires attention. Ignoring the light can lead to decreased performance, lower fuel-efficiency, or increasingly expensive repairs. At Lee Hill Auto Service, we provide expert check engine light diagnostics and repair in the greater Fredericksburg, VA area. Here’s a look at four common check engine light triggers. Oxygen Sensor Malfunction The oxygen sensor measures the amount of oxygen in the exhaust gases and helps the engine control module adjust the air-fuel mixture for optimal performance. A faulty sensor can cause the engine to run too rich or too lean, leading to poor fuel-economy and increased emissions. If the check engine light is illuminated due to an oxygen sensor problem, replacing the sensor is usually necessary to restore proper engine function. Mass Air Flow Sensor Issues The mass air flow (MAF) sensor monitors the volume of air entering the engine. A malfunctioning MAF sensor can disrupt the air-fuel balance, causing rough idling, stalling, or reduced acceleration. Replacing the sensor often resolves the problem and helps the engine run efficiently again. Spark Plug or Ignition Coil Problems Spark plugs and ignition coils are critical for igniting the air-fuel mixture in the engine. Worn or faulty spark plugs, as well as failing ignition coils, can cause misfires that trigger the check engine light. Symptoms may include rough running, difficulty starting, or decreased power. Regular maintenance and timely replacement of these components are essential. Catalytic Converter Trouble The catalytic converter reduces harmful emissions from your vehicle’s exhaust. A failing converter can trigger the check engine light and may lead to poor engine performance or unusual exhaust smells. Addressing catalytic converter issues promptly is important, as ignoring them can cause more serious problems with the engine. Check Engine Light Repair in Fredericksburg, VA When you need auto repair in Fredericksburg, VA and the surrounding area, contact Lee Hill Auto Service at  540-824-3730  . At our local auto shop, we can expertly handle your vehicle’s repair and maintenance needs. Feel free to give us a call to schedule an appointment for car care in greater Fredericksburg, VA!

A transmission fluid leak is one of those problems that can start small but quickly turn into a major headache if it isn’t addressed right away. Your vehicle depends on the right level of clean transmission fluid to shift smoothly and keep internal components protected from excessive heat and friction. When that fluid begins to escape, the transmission becomes vulnerable to damage that can lead to expensive repairs or even complete failure. At Lee Hill Auto Service, we provide expert transmission fluid leak repair in the greater Fredericksburg, VA area. Here are four signs your vehicle may be losing transmission fluid. Reddish Spots Under Your Vehicle One of the most obvious signs of a transmission fluid leak is spotting beneath your parked vehicle. Transmission fluid is commonly red or reddish-brown. If you begin noticing small puddles or stains under your car, it may be coming from the transmission pan, seals, or elsewhere. Even a small leak can cause big problems, so early inspection is essential. Difficulty or Delay When Shifting Gears Transmission fluid provides the hydraulic pressure needed for your vehicle to shift gears smoothly. When a leak lowers the fluid level, you may begin experiencing hesitation, jerking, or rough shifting. Some drivers notice a delay before the transmission engages when shifting from park to drive or reverse. These symptoms indicate that the transmission isn’t receiving the pressure or lubrication it needs, which can cause accelerated internal wear. Unusual Noises While Driving If your vehicle starts making whining, grinding, or buzzing noises, low transmission fluid could be to blame. When fluid is leaking, the remaining amount may not be enough to keep moving parts lubricated. As friction increases, the transmission may begin making noises that grow louder. These sounds are a clear sign that the system is struggling and should be checked immediately. Burning Smell Transmission fluid helps keep the system cool, and when levels drop due to a leak, the transmission can overheat. This often produces a burning smell. If you detect a burnt odor, it’s important to have the issue diagnosed before more harm is done. Transmission Repair in Fredericksburg, VA For expert auto repair in Fredericksburg, VA and the surrounding area, contact Lee Hill Auto Service at  540-824-3730  . Feel free to give us a call to schedule an appointment!