Why is my Land Rover’s Check Engine Light On?

Seeing your Land Rover’s check engine light pop on can be stressful, but it’s not always a sign of a major issue. It’s your vehicle’s way of letting you know something needs attention—whether it’s a minor fix or a bigger repair. Let’s break down some common reasons that could trigger this light and what to do about it.

1. Loose or Damaged Gas Cap
One of the simplest causes of a check engine light is a loose or faulty gas cap. If the cap isn’t sealed properly, it can cause fuel vapors to leak, triggering the light. Always double-check your gas cap after fueling up to ensure it’s tight. If it’s damaged, replacing it might solve the problem.

2. Oxygen Sensor Issues
Your Land Rover relies on oxygen sensors to monitor the air-fuel mixture in the engine. Over time, these sensors can wear out, causing the check engine light to come on. Ignoring a bad oxygen sensor could lead to reduced fuel efficiency and increased emissions.

3. Faulty Spark Plugs or Ignition Coils
If your Land Rover’s spark plugs or ignition coils are worn or malfunctioning, your engine might misfire, causing the check engine light to flash. These parts are vital for engine performance, so it’s important to have them inspected and replaced when necessary.

4. Catalytic Converter Problems
The catalytic converter reduces harmful emissions from your Land Rover. If it becomes clogged or damaged, it can cause the check engine light to appear. Symptoms like reduced acceleration or poor fuel efficiency might also indicate an issue with this critical component.

5. Mass Airflow Sensor Failure
The mass airflow sensor measures the amount of air entering the engine to ensure the proper fuel-to-air ratio. If it fails, it can lead to rough idling, poor fuel economy, or even stalling. A faulty sensor can be one of the reasons why your check engine light is on.

6. Transmission Issues
In some cases, the check engine light can signal a problem with your Land Rover’s transmission. If you notice unusual noises, difficulty shifting gears, or any transmission-related performance issues, it’s best to get it checked out immediately.

What Should You Do?
If your Land Rover’s check engine light comes on, don’t ignore it. While some causes may be minor, others can lead to more significant issues if left unresolved. At John’s Auto Care, we specialize in diagnosing and repairing Land Rovers. Our expert mechanics will run a diagnostic scan to pinpoint the issue and get your vehicle back on the road smoothly.

Schedule an appointment with our Land Rover specialists today! Let the experts at John’s Auto Care handle the rest!

1900 55Th St Ste 104 Boulder, Colorado 80301 (303) 442-2932
John's Auto Care - Boulder is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call John's Auto Care - Boulder (303) 442-2932 if you have any issues in accessing any area of our website.