Part Two: Understanding the Air Injection System

Part Two: Understanding the Air Injection System on 1981-1987 XJ6 and V12 XJS Jaguars In Part One, we discussed the emissions check valve and its role in the air injection system. Now, let’s take a step back and explore how the entire air injection system works on the 1981-1987 XJ6 Jaguars and V12 XJS models. […]

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Part One: Understanding and Replacing the Emissions Check Valve

Part One: Understanding and Replacing the Emissions Check Valve on 1981-1987 XJ6 and V12 XJS Jaguars The emissions check valve (part number EBC10196) is a critical component of the air injection system found on 1981-1987 XJ6 Jaguars and all V12 XJS models. This system includes the familiar air injection pipes that screw into the top […]

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Fuel Hose on 1979-1987 XJ6 XJS

Ok, straight from the shop floor: This week’s tech bit is about the fuel supply hose line on a 1979-1987 XJ6 XJS. This fuel hose may touch the battery on its way to the fuel rail. We just had a car in the shop with a fuel supply hose that had been partially eaten away […]

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Replacing Your Jaguar XJS V12 Two-Coil Single Ignition Coil

Replacing Single Ignition Coil vs. Two-Coil Setup on Jaguar XJS V12 (Lucas Ignition) If you own a Jaguar XJS V12 built before mid-1989, your car originally came equipped with a dual ignition coil setup. This design was intended to improve ignition performance by allowing faster coil charging at higher RPMs. However, maintaining this dual-coil system […]

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Rear Hub Cracks

The pre-1988 XJ6 and the XJS have a problem with the outer hubs on the IRS unit. The lower pivot point has a tendency to crack (definition:The rear hub is the big aluminum unit that the rear wheel bolts up to). Check these periodically, cleaning them up if necessary in order to see clearly. A […]

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Jaguar XJS and XJ6 Antenna Mast and Grommet Repairs

Fixing the Antenna Mast and Grommet on 1986+ XJS and 1988+ XJ6 Jaguars If your antenna isn’t extending or retracting properly on a 1986 or later Jaguar XJS or a 1988 or later XJ6, don’t worry – replacing the antenna mast and drive cable assembly is a simple and affordable DIY repair. What Goes Wrong […]

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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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