5 Warning Signs that Your Car’s Transmission Fluid Is Contaminated
Roswell Transmission • November 25, 2025
Your car’s transmission relies on clean, high-quality fluid to keep components lubricated, cool, and functioning smoothly. When that fluid becomes contaminated, it can quickly lead to serious problems that affect performance and the overall health of your transmission. Recognizing the warning signs early can save you from costly repairs or even complete transmission failure. At Roswell Transmission and Car Care, we can expertly handle issues related to transmission fluid. Here are five signs that your transmission fluid may be contaminated.
Your Transmission Fluid Looks Dark or Dirty
Fresh transmission fluid is typically bright red to pink. When the fluid becomes contaminated, it often turns brown or black due to burnt particles, debris, or metal shavings. Thick, sludgy, or cloudy fluid is another indicator that contaminants are circulating through the system. Checking the fluid with the dipstick can reveal these changes in color and consistency. If the fluid no longer resembles its usual clean shade, it’s time to have it serviced.
You Notice a Burnt or Unusual Odor
A burnt, sharp, or sour odor is a sign of contamination. This smell can result from overheating, friction, or internal component wear. When the fluid breaks down, it loses its ability to protect the transmission, causing parts to overheat and further degrading the fluid. A strong burnt smell should never be ignored, as it often signals early-stage damage that can worsen quickly.
Shifting Becomes Rough, Delayed, or Sluggish
Dirty or contaminated transmission fluid can prevent the transmission from building the proper hydraulic pressure needed for smooth shifting. You may notice hesitation when shifting gears, delayed engagement when accelerating, or abrupt jerks during gear changes. These issues indicate that the fluid is no longer functioning effectively as a lubricant and hydraulic medium. If your car suddenly struggles to shift the way it used to, contaminated fluid could be the cause.
Strange Noises
Grinding, humming, whining, or clunking sounds can point to contaminated or degraded transmission fluid. When the fluid is no longer clean enough to lubricate moving parts, friction increases, leading to noise from gears and internal components.
Your Car Surges or Slips During Acceleration
If your vehicle unexpectedly surges forward or the engine revs without delivering power to the wheels, your transmission may be slipping. Contaminated fluid can cause poor hydraulic pressure, leading to erratic performance. Slipping is a serious issue and can signal that the fluid is too dirty to allow proper function. Ignoring it can result in more extensive transmission damage.
Transmission Service in Roswell, GA
For transmission service in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 993-2846. Feel free to give us a call to schedule an appointment!
Your vehicle’s suspension system plays a crucial role in keeping your ride stable and safe. It absorbs bumps in the road, maintains tire contact, and helps ensure that you can steer and handle your car properly. When parts of the suspension—such as shocks, struts, or control arms—begin to wear out, your car’s comfort and safety can quickly decline. At Roswell Transmission and Car Care, we provide expert suspension repair in the greater Roswell, GA area. Here are four signs of suspension trouble. Excessive Bouncing One of the most noticeable symptoms of suspension problems is an unusually rough or bouncy ride. If you feel every bump and dip in the road, or if your car continues to bounce after hitting a pothole, your shocks or struts may be worn out. These components are designed to dampen motion and keep your vehicle stable. When they fail, your ride becomes much less comfortable—and your control over the vehicle may be compromised. Uneven Tire Wear Your suspension system helps ensure even weight distribution across all four tires. If the suspension is misaligned or damaged, it can cause uneven tire wear—where one side of a tire wears down more quickly than the other. This not only shortens the lifespan of your tires, but can also affect your car’s handling. If you notice uneven tread patterns, it’s wise to have both your suspension and wheel alignment inspected. Drifting or Pulling While Turning If your car feels like it’s leaning excessively or pulling to one side when turning, that’s a strong sign of suspension trouble. Worn shocks or struts can reduce your vehicle’s stability and increase body roll, making it harder to stay in control during turns. This can be particularly dangerous at higher speeds or in wet conditions. Having your suspension checked promptly can prevent this issue from worsening. Nose Diving During Braking When you hit the brakes, your vehicle should stop smoothly and evenly. If the front end of your car dips significantly during braking, it could indicate that your shocks or struts are no longer functioning properly. This condition, known as “nose diving,” increases stopping distances and can make emergency braking less predictable. Suspension Repair in Roswell, GA When you need auto repair in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 993-2846. Feel free to give us a call to make an appointment!
Your vehicle’s brakes are one of its most important safety systems, giving you the control you need to stop smoothly and avoid accidents. Because they endure constant friction and stress, brakes naturally wear down over time. However, with proper care and maintenance, you can keep your braking system in reliable condition. At Roswell Transmission and Car Care, we provide expert brake service in the greater Roswell, GA area. Here are five tips to help your brakes stay in top shape. Schedule Regular Brake Inspections Routine inspections are the best way to stay ahead of brake problems. The mechanic can check the condition of your brake pads, rotors, and fluid levels to ensure everything is working as it should. Having your brakes inspected at least once a year helps catch issues before they become serious. Replace Brake Pads Promptly Brake pads are designed to wear down gradually, but delaying replacement can cause damage to other parts of the braking system. Once the pads wear too thin, they can grind against the rotors, leading to costly repairs. If you hear squealing, grinding, or notice reduced stopping power, it’s time to have your brake pads inspected right away. Pay Attention to Brake Fluid Brake fluid is essential for transferring the pressure from your foot on the pedal to the brakes themselves. Over time, this fluid can become contaminated with moisture or debris, reducing its effectiveness. Checking your brake fluid level and condition regularly and replacing it as recommended by your manufacturer helps keep your brakes responsive and reliable. Drive with Good Braking Habits Your driving style has a big impact on brake wear. Slamming on the brakes or riding them unnecessarily puts extra stress on the system. Instead, practice smooth braking by allowing plenty of space between your vehicle and the one ahead of you. Address Warning Signs Immediately Your brakes often give clear signals when something is wrong. Unusual noises, vibrations, a soft brake pedal, or longer stopping distances are all red flags that should not be ignored. Getting your vehicle checked at the first sign of trouble can prevent a small problem from becoming a major safety hazard. Brake Service in Roswell, GA For expert brake service in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 993-2846. Feel free to give us a call to make an appointment for car care in Roswell, GA!
When your car’s temperature gauge starts climbing into the danger zone, it’s a warning that shouldn’t be ignored. Overheating can quickly lead to severe engine damage, resulting in costly repairs or even complete engine failure. Understanding the most common causes of overheating can help you recognize issues early and keep your vehicle running smoothly. At Roswell Transmission and Car Care, we provide expert cooling system repair in the greater Roswell, GA area. Here are four of the most frequent culprits behind an overheating engine. Radiator Problems The radiator is responsible for cooling the hot coolant before it cycles back into the engine. When the radiator is clogged, damaged, or leaking, it can’t perform its job effectively. This can result from corrosion, road debris, or other issues. If your radiator fan also fails, airflow decreases, further increasing the likelihood of overheating. Water Pump Failure The water pump is critical to the cooling system, pushing coolant through the engine and radiator. When it fails, circulation grinds to a halt, and temperatures soar. Common signs of a failing water pump include coolant leaks around the pump, whining noises, or engine overheating even when coolant levels are sufficient. Because of its crucial role, water pump issues should be addressed immediately. Low Coolant Levels Coolant plays a crucial role in regulating your engine’s temperature. If the system is running low due to leaks, the engine won’t have enough fluid to draw heat away. Without proper coolant circulation, the engine quickly overheats. Regularly checking fluid levels and topping off coolant as needed (while the engine is cool) is one of the simplest ways to prevent this issue. Faulty Thermostat The thermostat regulates the flow of coolant. If it becomes stuck closed, coolant can’t circulate, causing the engine to heat up rapidly. A malfunctioning thermostat is one of the more common and affordable issues behind overheating, but it still needs prompt replacement to avoid major engine stress. Cooling System Repair in Roswell, GA For expert auto repair in Roswell and the surrounding area, contact Roswell Transmission and Car Care at (770) 993-2846. Feel free to give us a call to schedule an appointment!
Your vehicle’s transmission is one of its most vital and complex components, responsible for transferring power from the engine to the wheels. Unfortunately, many transmission problems stem from everyday driving habits that most people don’t realize can cause harm. Over time, these behaviors can lead to premature wear, expensive repairs, or even complete transmission failure. Being mindful of how you drive and maintain your vehicle can go a long way toward preserving its performance. Here are four common ways that drivers unintentionally cause transmission problems. Shifting Between Drive and Reverse While the Car Is Moving Some drivers shift from reverse to drive—or vice versa—while the vehicle is still rolling. This abrupt change in direction can put excessive strain on the transmission’s internal components. The system isn’t designed to absorb that kind of force, and doing this repeatedly can cause parts to wear out prematurely. Always come to a complete stop before changing between these gears. Ignoring Routine Maintenance Neglecting to service your transmission regularly is one of the leading causes of failure. Transmission fluid degrades over time and loses its ability to lubricate and cool the system effectively. Skipping fluid changes or failing to check fluid levels can lead to overheating, increased friction, and internal damage. Always follow your vehicle manufacturer’s maintenance schedule to keep your transmission in good condition. Towing Beyond the Vehicle’s Capacity Overloading your vehicle or towing more than it’s rated to handle can put immense pressure on the transmission. Heat builds up rapidly under heavy loads. Over time, this stress can burn the fluid and damage gears. Always adhere to your vehicle’s towing guidelines to help minimize the risk of transmission trouble. Driving With Low or Contaminated Fluid Transmission fluid is essential for proper function, but many drivers aren’t aware of the signs of low or dirty fluid. Leaks, burning smells, or slipping gears can all indicate fluid problems. If ignored, contaminated or insufficient fluid can lead to overheating and accelerated wear. Checking your fluid regularly and addressing leaks promptly can prevent serious issues. Transmission Service in Roswell, GA For transmission service in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 993-2846. Feel free to give us a call to schedule an appointment!
Transmission fluid plays a critical role in keeping your vehicle running smoothly. It lubricates moving parts, cools the transmission, and allows for seamless gear shifting. When your transmission fluid begins to leak, it’s a problem that shouldn’t be ignored. Even a small leak can lead to major damage if left unaddressed. At Roswell Transmission and Car Care, we provide expert transmission fluid leak repair in the greater Roswell, GA area. Here are four important reasons to fix transmission fluid leaks as soon as they’re detected. Prevents Costly Transmission Damage Transmission fluid is essential for reducing friction and wear inside the transmission. If the fluid level drops due to a leak, internal components can quickly become damaged from overheating or metal-on-metal contact. What might start as a simple seal or gasket issue can escalate into the need for a full transmission rebuild or replacement if not addressed promptly. Maintains Smooth Gear Shifting Low transmission fluid can interfere with your car’s ability to shift gears properly. You may notice delayed engagement, slipping gears, or jerky transitions when driving. These issues not only make driving more difficult, but can also put additional strain on the transmission. Fixing leaks early helps preserve optimal performance. Protects the Environment Transmission fluid is a toxic substance that should never leak onto the ground. Leaking fluid can contaminate soil and water sources, posing a risk to the environment. Promptly repairing leaks helps prevent pollution and demonstrates responsible vehicle ownership. It also helps to prevent driveways and parking lots from getting stained. Reduces the Risk of Breakdowns A severe transmission fluid leak can eventually cause your vehicle to stop functioning altogether. Without enough fluid to circulate, the transmission can fail completely, potentially leaving you stranded. By repairing leaks as soon as they appear, you significantly reduce the risk of unexpected breakdowns and the inconvenience that comes with them. Transmission Repair in Roswell, GA When you need transmission repair in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 993-2846. Feel free to give us a call to schedule an appointment!
Your car’s cooling system plays a vital role in keeping the engine operating at a safe temperature. When this system begins to fail, it can lead to severe engine damage if not addressed promptly. At Roswell Transmission and Car Care, we provide expert cooling system repair in the greater Roswell, GA area. Here are four signs of cooling system trouble that require immediate attention. Engine Overheating One of the most obvious signs of a cooling system issue is an overheating engine. If you notice the temperature gauge rising into the red zone, it’s a clear indication that something is wrong. Overheating can result from a number of cooling system problems, such as a failing water pump, a clogged radiator, or low coolant levels. Continued driving under these conditions can severely damage your engine, so it’s best to pull over safely and call for assistance. Coolant Leaks Coolant leaking onto your driveway or garage floor is another sign that your cooling system needs immediate attention. Leaks may come from a cracked radiator or a damaged hose. If your coolant level gets too low, the system won’t be able to regulate the engine’s temperature effectively. Ignoring a leak can lead to overheating and, ultimately, engine failure. If you notice puddles of green, orange, or pink fluid (your coolant might be a different color) under your car, have it inspected right away. Steam Coming from the Hood If you see steam billowing from under your hood while driving or shortly after turning off the engine, it commonly means the engine is overheating and the coolant is boiling. This is a dangerous situation that requires immediate action. Pull over and let the engine cool completely before opening the hood. Driving with steam pouring out is not only unsafe, but it also puts your engine at risk of severe damage. Low Coolant Warning Light Modern vehicles are regularly equipped with sensors that alert you when coolant levels are dangerously low. If your dashboard displays a low coolant warning, don’t ignore it. This alert could indicate a slow leak or another underlying problem. Promptly topping off the coolant (when the engine is cool) and seeking a professional inspection can prevent more serious issues from developing. Cooling System Repair in Roswell, GA For expert auto repair in Roswell and the surrounding area, contact Roswell Transmission and Car Care at (770) 993-2846. Feel free to give us a call to make an appointment!
A healthy transmission plays a crucial role in transferring power from the engine to the wheels, enabling smooth gear shifts and efficient performance. Because transmission repairs can be expensive and inconvenient, it’s important to take proactive steps to keep it running strong. With consistent care, you can extend the life of your transmission and avoid costly problems down the road. Here are four tips to help keep your transmission in great condition. Check and Maintain Transmission Fluid One of the easiest and most important ways to care for your transmission is by checking and maintaining the transmission fluid. This fluid acts as both a lubricant and a coolant for the transmission’s internal parts. Low or dirty fluid can cause overheating, erratic shifting, or serious internal damage. Make it a habit to check and change the fluid regularly, following the manufacturer’s guidelines. If the fluid appears dark or has a burnt smell, it may be time for a fluid change. Get Regular Transmission Service Just like your engine needs oil changes, your transmission needs periodic maintenance to stay in peak condition. Depending on your vehicle and driving habits, this might include fluid changes, filter replacements, and inspections. Regular service helps remove contaminants and ensures the transmission is working efficiently. Skipping scheduled maintenance can lead to premature wear, so it’s wise to follow your vehicle’s service schedule closely. Avoid Aggressive Driving Fast acceleration and sudden braking can place extra strain on your transmission. While it’s sometimes unavoidable, driving aggressively on a regular basis can cause the transmission to wear out more quickly. Smooth, steady driving habits help reduce stress on your transmission. Shifting smoothly and taking it easy behind the wheel can pay off in the long run with fewer repairs and better performance. Fix Leaks Promptly If you notice reddish fluid pooling beneath your vehicle, it could be a sign of a transmission fluid leak. Even small leaks can lead to big problems if left unchecked. Low fluid levels reduce lubrication and cooling, increasing the risk of overheating and failure. Promptly addressing leaks will help you avoid costly repairs and extend the life of your transmission. Transmission Service in Roswell, GA For transmission service in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 635-5971. Feel free to give us a call to schedule an appointment!
By following some important maintenance practices, you can help ensure your engine runs smoothly for years to come. At Roswell Transmission and Car Care, we provide expert engine repair and maintenance in the greater Roswell, GA area. Here’s a look at four basic tips for keeping your engine healthy. Pay Attention to Warning Signs Ignoring small engine issues can lead to bigger, more expensive problems down the road. If you notice warning lights on your dashboard, unusual noises, rough idling, or reduced power, it’s important to have your engine checked as soon as possible. Catching problems early, such as oil leaks or coolant loss, can prevent major damage and costly repairs. Change the Oil and Filter Regularly Clean oil keeps your engine’s moving parts lubricated and reduces the risk of overheating. Over time, oil collects dirt and debris, which can lead to increased friction and engine wear. Following the manufacturer’s recommended oil change schedule helps ensure that your engine remains properly lubricated and protected. Also, replacing the oil filter with each oil change helps prevent contaminants from circulating through the engine, reducing the risk of damage. Monitor the Cooling System Overheating is one of the leading causes of engine failure, making a well-maintained cooling system crucial. Coolant helps regulate the engine’s temperature, preventing it from getting too hot. Flushing the coolant system as recommended helps keep it clean and effective. Inspecting hoses and the radiator for leaks can prevent coolant loss and overheating issues. Ensuring that your thermostat and water pump are functioning properly also plays a key role in maintaining engine temperature. Replace Air and Fuel Filters as Needed Engines require clean air and fuel to operate efficiently. A clogged air filter can restrict airflow, leading to reduced performance. Checking and replacing the air filter regularly allows the engine to breathe properly and maintain efficiency. Similarly, a dirty fuel filter can block fuel from reaching the engine properly, causing hesitation. Replacing the fuel filter at the recommended intervals helps ensure a steady flow of clean fuel, improving engine performance. Engine Repair & Maintenance in Roswell, GA When you need an experienced mechanic in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 635-5971. Feel free to give us a call to make an appointment!
When the transmission starts to fail, it can lead to increasingly expensive repairs and even complete breakdowns if left unaddressed. Recognizing the warning signs early can help you take action before the problem worsens. At Roswell Transmission and Car Care, we provide expert transmission repair in the greater Roswell, GA area. Here are four common signs that your transmission may be in trouble. Slipping Gears One of the most noticeable signs of transmission trouble is when your car’s gears slip unexpectedly. You might be driving at a steady speed when the vehicle suddenly changes gears without warning. This can make it feel like the car is struggling to maintain power, or you may notice a sudden change in engine RPMs. Gear slipping can indicate low transmission fluid or internal transmission damage. If you experience this issue, it’s best to have the mechanic inspect your transmission as soon as possible. Delayed/Rough Shifting A properly functioning transmission should shift smoothly between gears. You should alert the mechanic if you notice hesitation when your vehicle shifts, or if the gear changes feel rough. Rough shifting can create a harsh clunking or grinding sensation. These symptoms can be caused by worn-out transmission components, low fluid levels, or a failing transmission control module. Addressing the issue early can help prevent more severe damage. Unusual Noises Strange noises coming from your transmission should never be ignored. A healthy transmission operates quietly, so any whining, grinding, or buzzing sounds can indicate a problem. Whining noises may suggest low transmission fluid or issues with the torque converter, while grinding noises could mean that internal gears are wearing out. If you hear any unusual sounds, it’s best to have a professional diagnose the issue promptly. Leaking Transmission Fluid Transmission fluid is essential for keeping the system lubricated and functioning properly. If you notice a reddish fluid puddling under your car, this is a sign of a leak. Transmission fluid leaks can occur due to worn seals, gaskets, or a cracked transmission pan. Driving with low fluid levels can lead to overheating and serious internal damage. Checking your transmission fluid regularly and addressing leaks promptly can help prevent costly repairs. Transmission Repair in Roswell, GA For transmission service in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at 770-993-2846. Feel free to give us a call to schedule an appointment!
The alternator plays a crucial role in your vehicle’s electrical system by generating power and keeping the battery charged. When the alternator starts to fail, it can lead to a variety of performance issues and, if left unaddressed, may leave you stranded. Recognizing the signs of alternator trouble early can help prevent unexpected breakdowns. At Roswell Transmission and Car Care, we provide expert alternator replacement and auto electric repair in the greater Roswell, GA area. Here are five common signs of an alternator problem. Dashboard Warning Light Most modern vehicles have a warning light on the dashboard that can indicate alternator trouble. This light may appear as a battery symbol or be labeled ALT or GEN. If this warning light comes on while you’re driving, it’s a sign that the alternator is not charging the battery properly. While the battery may still have some charge, your car will eventually lose power if the alternator isn’t functioning correctly. Flickering/Dimming Lights The alternator provides power to your vehicle’s electrical systems, including the headlights and interior lights. If the alternator is not generating enough electricity, you may notice your headlights becoming dim. Dimming or flickering lights may indicate that the alternator is struggling to provide a consistent power supply. Malfunctioning Electrical Accessories A failing alternator can cause various electrical components to act erratically. You may notice that your power windows move slower than usual, your radio cuts out, or your power seats are sluggish. Inconsistent operation of these electrical features suggests that the alternator isn’t delivering enough power to keep everything running smoothly. Dead or Weak Battery While a dead battery can be caused by several issues, a faulty alternator is often to blame. If your alternator isn’t charging the battery properly, the battery will eventually drain and fail to start your car. Getting your charging system checked can help determine whether the alternator is at fault. Strange Noises from the Engine Unusual noises coming from the engine bay can be another warning sign of alternator trouble. A worn-out alternator bearing can produce a grinding sound, and a belt issue may cause whining. If you hear these noises, it’s best to have your vehicle inspected before the problem worsens. Alternator Replacement & Auto Electric Repair in Roswell, GA When you need auto repair in Roswell, GA and the surrounding area, contact Roswell Transmission and Car Care at (770) 635-5971. Feel free to give us a call to make an appointment!
