Why does the check engine light come on when I start my XJ6?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your XJ6 testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why is my Jaguar XJ6 making engine noise?

Strange engine sounds can be a sign something’s off in your Jaguar XJ6. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my Jaguar XJ6 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my Jaguar XJ6 radiator?

While it’s not recommended, you can use water in your XJ6 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What could cause my XJ6 engine to suddenly stop?

If your XJ6 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who fixes Jaguar XJ6 engines?

For Jaguar XJ6 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Reliable Repairs for 1986 Jaguar XJ6 Engines

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1986 Jaguar XJ6 Trim Options

Select your Jaguar XJ6 trim level to learn more about Jaguar-recommended engine repair. Use the following chart to find information.

L6/4.2L

1986 Jaguar XJ6 Repair

Stuff wears out. Even your Jaguar XJ6's many parts and pieces. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 1986 Jaguar XJ6 repairs.

We’re Trained to Care for Jaguar XJ6 Engines

Jaguar XJ6 engines are known for their reliability. That might be why you bought it in the first place. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. When they do, you might find yourself searching for 1986 Jaguar XJ6 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. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Jaguar XJ6 engine will be in good hands. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 1986 Jaguar XJ6

An illuminated check engine light on your Jaguar XJ6 is one of the first signs it's time to 'brake' for engine service. A check engine light that’s flashing or steadily illuminated could point to problems with your fuel, Possible causes can include a failing oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your XJ6 to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. Other signs your Jaguar XJ6 engine needs some TLC are burning smells, or engine misfiring.

1986 XJ6 Engine Services

When your Jaguar XJ6 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We don't start working until we have your approval. 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 give you all the details you need to make an informed decision about your engine repairs. Choose Firestone Complete Auto Care for Jaguar XJ6 engine repairs and you can feel good knowing that we only use Jaguar-compliant replacement parts such as the timing chain or belt, valve guide seal, fuses, or a different component.

1986 Jaguar XJ6 Engine Q&A

Why does the check engine light come on when I start my XJ6? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your XJ6 testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why is my Jaguar XJ6 making engine noise? Strange engine sounds can be a sign something’s off in your Jaguar XJ6. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my Jaguar XJ6 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my Jaguar XJ6 radiator? While it’s not recommended, you can use water in your XJ6 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What could cause my XJ6 engine to suddenly stop? If your XJ6 car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who fixes Jaguar XJ6 engines? For Jaguar XJ6 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.