Hawthorne and Lawndale Auto Repair

The crankshaft position sensor tells the engine computer how fast the crankshaft is turning and where it is in its rotation. That information helps the computer control ignition timing, fuel injection, variable valve timing, misfire monitoring, and other essential engine functions. When the signal becomes inaccurate or disappears, the engine may stall, hesitate, misfire, take longer to start, or refuse to start at all. A failed sensor is one possible cause, but damaged wiring, a faulty reluctor wheel, incorrect mechanical timing, or excessive crankshaft movement can produce similar symptoms. How the Crankshaft Position Sensor Works Most engines use either a magnetic sensor or a Hall-effect sensor positioned close to a toothed reluctor wheel. The reluctor may be attached to the crankshaft, flywheel, flexplate, harmonic balancer, or another rotating component. As the teeth pass the sensor, they create a changing electrical signal. A missing tooth or specially arrange ... read more

A car that shakes during acceleration is doing more than making the drive uncomfortable. It is giving you a clue about when the problem appears. If the vibration happens mainly when you press the gas, that points in a different direction than a shake while braking, idling, or cruising at a steady speed. Acceleration puts load through the engine, transmission, axles, mounts, tires, and suspension. A weak part that feels quiet at light speed can start showing itself when torque increases. The shake may be small at first, but it should not be ignored, especially if it is getting stronger or showing up more often. The Timing Of The Shake Helps Narrow It Down A vibration during acceleration can come from several systems, so the pattern is important. Does it happen from a stop? Does it show up around 40 mph? Does it only happen when climbing a hill or merging onto the freeway? Does the steering wheel shake, or do you feel it more through the seat and floor? A steering wh ... read more

Car AC problems have a way of showing up when you need cold air the most. The system might feel fine in spring, then struggle during the first stretch of real heat. By then, the cabin feels uncomfortable, the vents blow weakly, and the repair may be more involved than it would have been earlier. That is why regular maintenance is worth taking seriously. A basic AC inspection can catch small leaks, airflow problems, worn parts, and electrical issues before the system quits on a hot day. If the AC still works but feels weaker than it used to, that is usually the best time to check it. 1. Low Refrigerant And Small AC Leaks Low refrigerant is one of the most common reasons a car’s AC starts blowing warm or only mildly cool air. The system needs the correct amount of refrigerant to remove heat from the cabin. When the level drops, cooling power drops with it. Refrigerant does not get used up during normal operation. If the level is low, there is usually a leak som ... read more

Transmission problems can change the way a car feels before the driver fully understands what is wrong. The vehicle may still move, but acceleration feels delayed, shifts feel sharper, or the engine revs without the car responding the way it should. Those changes are worth paying attention to. A transmission depends on the right fluid level, correct pressure, good internal parts, and proper computer control. When one part of that system starts slipping, acceleration, shifting, and overall performance can all suffer. 1. Low Transmission Fluid Low transmission fluid is one of the most common reasons a vehicle starts shifting poorly. Transmission fluid helps create hydraulic pressure, lubricates internal parts, and carries heat away from the system. If the level drops too far, the transmission cannot apply parts as firmly or consistently as it should. Drivers may notice delayed engagement when shifting into drive, slipping during acceleration, or a hard shift between ... read more

In the world of auto repair, there are certain parts that act like ticking clocks. You don’t see them, you don’t hear them, and you usually don’t think about them until they stop ticking. The timing belt is the champion of this category. It is a humble notched belt hidden behind a plastic cover, but it holds the life of your engine in its metaphorical hands. If you have ever wondered why your mechanic gets a serious look on their face when they mention your timing belt, it is because this isn’t just another maintenance item like a spark plug or a cabin filter. If a timing belt snaps, the party is over for your engine. The Mechanical Choreographer To understand why replacement intervals matter, you have to know what this belt actually does. The pistons move up and down while the valves open and close to let air in and exhaust out. In an interference engine, the valves and pistons occupy the same space at different times. If the belt breaks, th ... read more

Water pump problems have a way of starting quietly. You might notice a small change in coolant level or a new sound that only shows up at idle, and it’s easy to brush it off because the car still drives normally. The trick is catching the early signs before you end up dealing with overheating. What The Water Pump Actually Does The water pump keeps coolant moving through the engine and radiator so heat can be carried away instead of building up in one spot. When it’s working properly, the temperature stays stable and the heater works consistently. When it starts failing, the symptoms can look like a hose leak, a thermostat issue, or sometimes nothing at all until it gets worse. Because the pump is a moving part with a seal and a bearing, it can fail in a couple of different ways. Some pumps start leaking first. Others start making noise first. Coolant Level Drops With No Obvious Puddle A slow coolant drop is one of the earliest signs ... read more

Fuel prices fluctuate frequently, leaving drivers wondering how to stretch each gallon further. While gas mileage varies by vehicle, driving habits, and maintenance, there are several strategies anyone can use to save fuel without sacrificing safety or comfort. Whether you’re commuting, running errands, or planning a road trip, these tips can help reduce fuel costs and improve your vehicle’s efficiency. Keep Your Car Well-Maintained A well-maintained car is fuel-efficient. Regular maintenance helps ensure your engine runs smoothly and uses less fuel. Key areas to focus on include: Air Filters: A clogged air filter reduces engine efficiency, causing your car to consume more fuel. Replace filters regularly. Spark Plugs: Worn spark plugs can cause misfires, wasting fuel, and reduce performance. Oil Changes: Using the right oil grade helps your engine run more efficien ... read more

You shut the car off, grab your stuff, and then you hear it, the radiator fan is still running. Sometimes it’s for 20 seconds. Sometimes it’s for a few minutes. If you’ve never noticed it before, it can feel like something is wrong. In most cases, it’s normal. In other cases, it’s a clue that the cooling system is working harder than it should, or that a sensor or control issue is telling the fan to stay on longer than necessary. What The Radiator Fan Is Doing After Shutdown The fan’s job is to pull air through the radiator and condenser to manage temperature. While you’re driving, airflow through the grille helps a lot. When you stop, airflow drops, but heat in the engine bay doesn’t magically disappear. In fact, temperatures can rise briefly after shutdown because the coolant stops circulating and heat soaks into nearby components. Many modern cars are programmed to run the fan after you turn the engine off to contr ... read more

A new year is a good excuse to reset more than your calendar. It is also a smart time to reset how you take care of your car. A few realistic car care resolutions can keep your vehicle from surprising you with breakdowns and big repair bills later in the year. Start the Year With a Maintenance Baseline Before you can plan ahead, it helps to know where things stand today. Take a look at your service records and see when the last oil change, brake job, coolant service, and transmission service were actually done. Many drivers are surprised to find gaps of several years on items they thought were up to date. If you do not have clear records, treating the new year as a “baseline” service point makes sense. A thorough inspection with fresh oil and filters gives you a solid starting line. From there, you can build a schedule instead of guessing. Make Oil and Fluid Changes a Real Schedule Fluids are the lifeblood of the engine, transmission ... read more

Seeing the ABS light glow on the dashboard can feel unsettling. Your car still stops when you press the pedal, so it is tempting to wait. That light is the brake system asking for attention, and it often turns a simple sensor or wiring fix into peace of mind on wet roads. What the ABS Light Is Telling You ABS stands for antilock braking system. It watches each wheel with speed sensors and prevents a lockup during hard stops by pulsing brake pressure. When the light comes on, the system has detected a fault and usually disables the antilock function. Your normal brakes remain, but the added safety net that helps you steer while braking hard is not available until the fault is repaired. Common Reasons the ABS Light Turns On Wheel speed sensors live near the hubs where they face heat, moisture, and road debris. A cracked sensor, damaged wir ... read more