Living With a Jaguar XJS V12 - Power Steering Failure

A bit of a strange fault in the power steering system of my 1989 Jaguar XJS V12 has appeared. In this episode of the "Living With" series, I investigate a sudden loss of power assistance in my 1989 Jaguar XJS. The steering works completely fine when turning right, but locks up and loses assistance slightly when turning quickly to the left once the car is hot. We demonstrate the issue, take a look through the workshop manual, inspect the fluid level in the power steering pump, and run through a bit of a live diagnostic. Because the pump holds pressure and works normally in one direction, I think it can be ruled out —pointing the finger directly at an internal failure inside the steering rack itself. Have you experienced this specific one-way power steering fault on an XJS or another classic Jaguar? If you have diagnostic tips or can recommend a great steering rack refurbishment specialist in the UK, please drop a comment below! Watch the XJS Cabin Pollen Filter Mystery video here:    • Living With a Jaguar XJS V12: The Hidden C...   Watch the V12 Engine Cooling Heatwave video here:    • My Jaguar XJS V12 Survived 40°C Heat... Ba...   If you enjoy honest, hands-on classic car diagnostics and practical garage work, please consider subscribing! We are closing in on our 1,000-subscriber milestone and your support makes a huge difference.