The Rover Doctor Plus Blog

by The Rover Doctor Plus 8 May 2025
When the check engine light comes on in your Land Rover, it’s a signal that something within the vehicle’s complex systems isn’t working properly. While the light itself doesn’t pinpoint the exact issue, there are several common reasons it may illuminate. Land Rovers, known for their performance and luxury, rely heavily on advanced electronics and sensors, which means even minor issues can trigger the warning. At The Rover Doctor Plus, we provide expert Land Rover check engine light diagnostics and repair in the greater Irvine area. Here are four common reasons why the check engine light might come on in your Land Rover. Faulty Oxygen Sensors One of the most frequent causes of a check engine light in Land Rovers is a failing oxygen sensor. This sensor monitors the level of oxygen in the exhaust and helps regulate the air-fuel mixture. If it starts to fail, the engine may run too rich or too lean, leading to reduced fuel economy and increased emissions. Left unaddressed, a faulty oxygen sensor can also cause problems with the catalytic converter, resulting in even more expensive repairs. Mass Air Flow Sensor Issues The mass air flow (MAF) sensor is responsible for measuring the amount of air entering the engine so the proper fuel-to-air ratio can be delivered. If the sensor is dirty or malfunctioning, it can throw off the engine’s performance. Land Rovers can be very sensitive to issues with airflow sensors, and a problem here can lead to rough idling, stalling, or poor acceleration—all accompanied by the check engine light. Failing Ignition Coils or Spark Plugs Ignition system problems are another frequent reason for the check engine light to come on. In Land Rovers, worn spark plugs or faulty ignition coils can lead to misfires, rough performance, and reduced fuel-efficiency. These components are responsible for igniting the fuel in the engine’s cylinders. When they don’t function correctly, the engine can run unevenly. Catalytic Converter Problems The catalytic converter helps reduce harmful emissions by converting toxic gases into safer byproducts. Over time, it can become clogged or fail, especially if other issues like bad oxygen sensors go unaddressed. A failing catalytic converter will often result in poor engine performance and increased emissions. Land Rover Repair in Irvine, CA For expert Land Rover repair in Irvine, CA and the surrounding area, contact The Rover Doctor Plus at (949) 462-0648. Feel free to give us a call to schedule an appointment!
A black land rover defender is parked on the street in the dark.
by The Rover Doctor Plus 1 May 2025
Land Rovers are known for their luxury, off-road capabilities, and iconic styling, but like any vehicle, they’re not without their faults, including models from the 2010s. At The Rover Doctor Plus in Irvine, CA, we've specialized in Irvine Land Rover service and repair since 1999, and we've seen many of the same problems come through our doors. If you drive a Land Rover from the 2010s, here are five common issues to watch out for. Air Suspension Failures One of the most frequent problems in Range Rover and LR models is air suspension failure. The system provides a smooth ride and adjustable clearance, but over time, the air struts and compressors can wear out, leading to sagging suspension and poor ride quality. Coolant Leaks Many 2010s Land Rovers suffer from coolant leaks, often caused by failing water pumps, cracked coolant reservoirs, or degraded hoses. If left unchecked, this can lead to overheating and costly engine repairs. Electrical System Gremlins Electrical issues are notorious in Land Rovers of this era. Owners often report problems with infotainment systems, door locks, window regulators, and warning lights. Faulty wiring or outdated software can cause intermittent glitches that require expert diagnostics. Transmission Issues Some Land Rover models—particularly the Range Rover Evoque and Discovery Sport—have experienced rough shifting, delayed engagement, or transmission failure. These problems are often due to valve body or solenoid issues and may require major repairs if ignored. Timing Chain Wear On certain models with V6 and V8 engines, premature timing chain wear is a known concern. A loose or noisy chain can lead to poor performance, engine misfires, or in worst cases, engine failure if not addressed promptly. At The Rover Doctor Plus , we have decades of experience helping Land Rover owners in Irvine and throughout Orange County keep their vehicles running reliably. If you're noticing any of these issues, visit us for expert Land Rover repair in Irvine, CA. Trust the local experts who’ve been servicing Land Rovers since 1999!
The engine of a red car is visible under the hood.
by The Rover Doctor Plus 27 June 2024
Your vehicle's alternator does the important jobs of charging the battery and powering the electrical systems while the engine runs. When it starts to fail, you could face a range of issues that, if not addressed promptly, could lead to a breakdown. At O.C. Bumper & Body, we provide expert alternator replacement and auto electric repair in the greater Irvine, CA area. Here’s a look at five warning signs of alternator trouble. Dim or Flickering Lights The alternator supplies power to the vehicle's electrical systems, including the lights. If it's not working correctly, you might notice that your headlights are not as bright as usual. Interior lights may also flicker or dim. Battery Warning Light The battery warning light on your dashboard can indicate an alternator problem. This light typically shows a battery icon or the letters ALT or GEN. If this light comes on while you're driving, it means the alternator isn't providing enough voltage to the battery. While it could be a battery issue, it's often a sign that the alternator is failing. Strange Noises Hearing strange noises from under the hood can be another indication of alternator issues. A failing alternator can cause a whining or grinding noise due to worn-out bearings or a faulty belt. If you hear these noises, it's best to get your vehicle checked by a professional as soon as possible. Electrical Accessory Issues A malfunctioning alternator can lead to a variety of electrical problems. For example, you might notice that your power windows, seats, or other electronic accessories are slow to respond or not working at all. This happens because the alternator isn't generating enough power to run these systems. Dead Battery A dead battery can also be a sign of a failing alternator. A bad alternator won't charge the battery properly, leading to repeated instances where your battery is drained. Alternator Replacement & Auto Electric Repair in Irvine, CA When you need auto repair in Irvine and the surrounding area, contact O.C. Bumper & Body at  (949) 462-0648  . At our nearby body shop, we also provide expert mechanical auto repair in Irvine. Feel free to give us a call today to schedule an appointment!
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