Why does the check engine light in my XJ12 turn on when I start my car?

It’s usually normal for your check engine light to turn on upon ignition. It’s just your XJ12 firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Jaguar XJ12 engine noises bad?

Strange under-the-hood noises can point to problems within your Jaguar XJ12 engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Jaguar XJ12 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I add water to my Jaguar XJ12 radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your XJ12 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my XJ12 to suddenly stop?

There are different reasons your XJ12 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who repairs Jaguar XJ12 engines?

Your local Firestone Complete Auto Care offers Jaguar XJ12 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

1994 Jaguar XJ12 Engine Repair

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1994 Jaguar XJ12 Trim Options

Select your Jaguar XJ12 trim level to learn more about Jaguar-recommended engine repair. Use the following chart to find information.

V12/6.0L

Jaguar XJ12 Repairs and Services

Nothing stays the same forever. Even your Jaguar XJ12’s engine parts and components will change. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 1994 Jaguar XJ12.

We Know Jaguar XJ12 Engines

The Jaguar XJ12 is respected for its reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. When they do, you might find yourself searching for 1994 Jaguar XJ12 engine repair or replacement parts. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Jaguar XJ12 engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 1994 Jaguar XJ12 Check Engine Light Is On

As soon as your XJ12 check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your vehicle's ignition, Potential causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your XJ12 to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. rattling sounds, burning smells, or engine misfiring.

1994 XJ12 Engine Services

If your 1994 XJ12 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 1994 XJ12 engine repairs and you can feel good knowing that we only use Jaguar-compliant replacement parts such as the timing belt, oil gasket, ignition coil, or other parts.

1994 Jaguar XJ12 Engine Q&A

Why does the check engine light in my XJ12 turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. It’s just your XJ12 firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Jaguar XJ12 engine noises bad? Strange under-the-hood noises can point to problems within your Jaguar XJ12 engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Jaguar XJ12 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I add water to my Jaguar XJ12 radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your XJ12 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my XJ12 to suddenly stop? There are different reasons your XJ12 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who repairs Jaguar XJ12 engines? Your local Firestone Complete Auto Care offers Jaguar XJ12 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!