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When it comes to car engines, the ignition coil is what makes the sparks fly. Sitting behind each spark plug, the ignition coil generates and delivers a surge of electrical voltage so the plug can ignite the fuel inside the combustion chamber. When an ignition coil malfunctions, you'll rapidly notice the following engine and exhaust problems. A technician at your nearest Lexus dealer can quickly fix a faulty ignition coil and get your car back on the road once more. Sluggish Acceleration Spark plugs need to fire hundreds of times every minute to keep the engine powering along. If one of your spark plugs is suddenly starved of electricity by a bad ignition coil, it won't fire as much and that cylinder will lose power. As a result, you'll find it harder to accelerate, especially when driving uphill. more Worsening Gas Mileage Sometimes, when an ignition coil fails, the engine tries to compensate by injecting even more fuel into the combustion chamber. This causes gas mileage to plummet, and you'll find yourself stopping for gas more often. Misfiring While Idling When a spark plug fails to spark properly because of a malfunctioning ignition coil, the cylinder misfires. Misfiring causes the engine to cough, sputter, and vibrate awkwardly. Misfiring is usually most noticeable when you drive slowly or pause in idle at traffic lights. Repeatedly Stalling Engine When misfiring gets really bad, your engine power might suddenly cut out entirely. Once stalled because of a bad coil, you might also have trouble starting the engine up again. Exhaust System Problems Misfiring causes an excess of fuel to build up inside the combustion chamber. This fuel can start to leak back into the exhaust system or explode just as the cylinder is opening, causing loud backfiring. Sometimes, the leaking fuel ignites inside the catalytic converter, which can destroy the converter. Thick Exhaust Smoke When unburned fuel makes its way back into the exhaust system, it often partially ignites in the heat of the exhaust and pours out of the tailpipe in the form of black smoke. If you notice your exhaust fumes thickening with smoke, your engine is probably misfiring, and an ignition coil might be to blame. Your Lexus Dealer in Greenwich, CT, Can Repair or Replace a Bad Coil Faulty coils can sometimes be repaired and restored with proper cleaning. It depends on how badly damaged the coil has become. A little corrosion from moisture or carbon residue from the fuel can often be cleaned away, but a burned-out electrode or some other serious damage will likely mean the coil has to be replaced. Visit DARCARS Lexus of Greenwich today to have your ignition coil problem solved by experienced technicians. We provide luxurious and personalized customer service as befits discerning Lexus car drivers.

Electrical problems can occur for various reasons, but the most common is delayed servicing. When we perform a service, we routinely check the electrical systems and identify and fix any problems we find. If you have an electrical problem in Greenwich, CT, your Lexus dealer can fix it for you. These are a few possible problems we can repair. 3 Electrical Problems You Should Always Fix at Your Lexus Dealer Blown Fuses Your Lexus has numerous electrical systems, and each system has a fuse connected to it. These fuses function the same way as the ones in your home do. They protect their connected component against shorts and other rogue electrical behavior. The fuse will absorb the electrical charge and blow. Its sacrifice protects the component from damage but also shuts down the component until the fuse is replaced. more If you've experienced an electrical failure, for example, your radio no longer works, the fault could be due to a blown fuse. We'll need to examine your car's fuse box to identify the exact cause. We'll test each fuse and replace any blown ones. Our technicians will also test for the source of the rogue electrical charge to help prevent it from happening again. Failing Alternator The alternator has the vital job of producing electricity for your car's systems and devices. It activates when your engine starts and spins at high speed to produce magnetic energy. This energy is captured by specialist components inside the alternator and converted into DC for your car's systems. The alternator is also responsible for recharging your battery. An alternator gradually wears down over time, and it will start to produce less electricity. Your car's demands for electricity are relatively stable, and a failing alternator will eventually fail to supply all the electricity required. When this happens, your car will display a range of symptoms, including electrical glitches, dim lights, and other issues. We'll check your alternator and replace it if it's failing. Worn Wiring All the electrical systems must connect to the alternator to receive power. This situation requires large amounts of wiring, and each wire must be protected against the heat inside the engine. In addition, the wiring is meticulously placed to prevent even slight movements inside the engine from disturbing it. Wires, unfortunately, will eventually fail. Time and the continual flow of electricity through them can cause wires to break. If this happens, the components connected to the wiring will shut down. Broken wiring can also overheat and burn as electricity continues to flow through them. We can trace any wiring problem and repair it very quickly. Schedule a Lexus Service in CT for a Comprehensive Electrical Inspection If you suspect your Lexus has an electrical problem, call our service department at DARCARS Lexus of Greenwich. Our highly-trained technicians will find and fix it for you.