Jaguar XKR Diagnostic: Testing Fuel Pressure - Will It Finally Run?

After months of scratching my head over engine issues, it’s time for the "moment of truth" for the Jaguar XKR. Many of you suggested checking the fuel pressure, so today we’re hooking up the gauge to see if our 10-year-dormant fuel pumps are finally up to the task. ​In this video, we cover: ​The Setup: Hooking up a fuel pressure tester to the Jaguar XKR's Shrader valve [04:10]. ​The Test: Priming the pumps and checking for that 40-45 PSI target [07:10]. ​The Result: A surprisingly smooth idle and a potential breakthrough for the project [10:40]. ​The Plan: Moving on from the engine to the braking system and suspension [16:50]. ​We’re using E5 premium fuel and some Redex treatment to see if we can "Italian tuneup" this cat back to life. Is the X100 finally ready for the road, or are more gremlins hiding in the wiring? ​🔔 Subscribe to follow the full Jaguar XKR restoration 👍 Like the video if you’ve ever had a car fix itself! 💬 Comment below: What should I check next? The injectors or just drive it? ​#JaguarXKR #X100 #CarRestoration #FuelPressure #Supercharged #DIYMechanic #ProjectsInTheBarn ​3. Video Chapters ​[00:00] Intro: The Jaguar XKR Engine Mystery [01:45] The Fuel Pressure Tester Kit & Adapters [02:25] Location of the XKR Fuel Shrader Valve [04:10] Connecting the Pressure Gauge (The Hard Way!) [05:40] Initial Reading: Zero Pressure [07:10] The Moment of Truth: Turning the Ignition [08:40] Engine Start: Monitoring the PSI [10:40] Breakthrough? The Engine Smooths Out [12:40] Shutdown & Pressure Drop Test [13:50] Did the XKR Just Fix Itself? [16:10] Future Diagnostics: swallows Racing & Pro Advice [17:00] Next Steps: Leveling the Workshop & Brakes [18:55] Planning the Underbody Restoration (Brakes & Hardlines) [20:25] Final Update & Subscriber Thanks