Fixing Leaky Cruise Control Bellows on 1980-1987 Jaguar XJ6 and Most XJS Models If you own a 1980-1987 Jaguar XJ6 or most XJS models, you may encounter issues with the cruise control system due to a leaky rubber bellows. This component plays a crucial role in maintaining proper cruise control function, and leaks can lead […]
Category: XJS
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. […]
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 […]
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 […]
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 […]
Repairing XJS Master Cylinder Hoses Connected to the Brake Fluid Reservoir
Repairing XJS Master Cylinder Hoses Connected to the Brake Fluid Reservoir If you own a Jaguar XJS, you may notice brake fluid leaks caused by deteriorating rubber hoses connecting the master cylinder to the brake fluid reservoir. These hoses become brittle over time, leading to cracks and leaks that can damage your car’s paint if […]
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 […]
Polyurethane Steering Rack Bushing Upgrade on 1976-1996 XJS and 1969-1987 XJ6 Jaguars
The XJS and the pre-88 XJ6 have a problem with rack bushing degradation. These bushings hold the steering rack in place and absorb some of the road vibration. Unfortunately, they tend to decay and fall apart given their usually hot and oily environment. The permanent solution is a set of Polyurethane or Neoprene rack bushings. […]
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 […]
Preventing an early death of the pre-1988 XJS Wiper Motor
DIY Preventive Maintenance for Jaguar XJS Wiper Motor (1988 and Earlier Models) If you own an early Jaguar XJS (1988 and earlier), your vehicle likely uses the Lucas wiper motor system. In the middle of 1988, Jaguar switched to the Electrolux wiper system. To determine which system you have, observe the wiper parking position: if […]
