Self-leveling rear suspension, as used on the 1988-1994 XJ6

These part-hydraulic/part-pneumatic systems are prone to failure. The typical failure mode is where the rear end of the car “hunts” for the correct ride height, but doesn’t find it, and the rear of the car ends up bouncing up and down continually. Rolls Royce used this system back in the ’70s, and it didn’t work […]

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1988-1994 XJ6 ABS Brake Accumulator Problems

If you’re experiencing a hard brake pedal in your Jaguar XJS, it might be a straightforward fix. Here’s a simple guide to diagnosing and resolving the issue. Step 1: Add Mineral Oil 1. Add Mineral Oil: Begin by adding mineral oil in your brake system to the reservoir until it reaches the recommended level. For […]

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1988-1992 XJ6 Air Conditioning and Heater Control Panel

If you’re a Jaguar owner dealing with issues in your 1988-1992 Jaguar XJ6’s Air Conditioning control panel, you’re not alone. The air conditioning control panel, located in the center of your dash, is a notorious weak point for these models. If your panel doesn’t light up when you turn on the air conditioning or heater, […]

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Diagnosing Front End Noises on Jaguar XJ6 and XJS

Does the front of your car rattle and clunk when you drive over a rough section of road? Or, do your tires wear out along one edge? It’s time to take a look at your front end. There are two common culprits when these things happen. The first culprit is the upper shock bushings. These […]

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How to replace the voltage regulator in the 1979-1987 XJ6

When this part goes bad, you’ll typically get a “flare” in your alternator’s current output, causing all of your lights to brighten up considerably. While it’s nice to have really bright lights, it’s bad for your electrical system and overcharges your battery. The voltage regulator is a small electrical device screwed just under the black […]

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Transmission Service, BW65/66

The Borg-Warner model 65/66 transmission was fitted to the 1980-1987 XJ6. In the U.S, this transmission has developed a reputation for unreliability and short life. Interestingly, in the U.K. this transmission has developed a reputation for dependability and long life. In the U.K., car owners are trained (practically from birth) to regularly service their cars, […]

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Spring Safety Tips for Your XJ6 Jaguar

Safety Tips for Your XJ6 Jaguar: Checking Tires, Belts, and Hoses As spring arrives and you prepare to bring your Jaguar XJ6 out of storage, it’s essential to inspect key components to ensure your first drives of the season are smooth and trouble-free. Tires, belts, and hoses are particularly vulnerable to wear and aging, especially […]

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Flaky Speedometer on XJ6 Jaguars

How to Fix a Flaky Speedometer on an XJ6 Jaguar: A DIY Guide A bouncing or intermittent speedometer on your Jaguar XJ6 can be frustrating, but the issue is often caused by a faulty connection or a failing transducer. The speedometer gets its signal from the transducer, which is located either on the tail of […]

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How to Fix Inoperative Cruise Control on Series III XJ6 Jaguars

When troubleshooting an inoperative cruise control system in your Series III XJ6 Jaguar, there are a few common problem areas to inspect. Fortunately, these are typically easy and inexpensive to repair. If your cruise control isn’t working, here’s a checklist of items to investigate: 1. Rubber Bellows of the Vacuum Unit: Check if the rubber […]

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