What are the fuel lines on a Jaguar?
Many of the lines (fuel, power steering, etc.) in the Jag consist of metal tubing with threaded connectors and a short length of hose in the middle somewhere, all sold under one part number. The hose typically has a fake braided pattern in the surface, and is no better than other British non-metallic parts.
How does the fuel system work on a Jaguar XJ?
The connections on the fuel rail and injectors themselves on the XJ-S do not use clamps; the tightness of the hose on the fitting is relied upon to prevent disconnection or leaks. While this appears to work well, it makes some of us nervous, especially if we have had one of these connections apart for some reason.
Is the fuel pump in the trunk of a Jaguar?
FUEL LINES: The fuel pump in the XJ-S (in the trunk) can put out nearly 200 psi. This is way too much for ordinary fuel hose — do not use it anywhere in this fuel system. Most auto parts stores now carry “EFI hose.”. It is much more expensive, but a fuel fire is no fun.
Can a fuel injection hose be replaced in a Jaguar?
The hose typically has a fake braided pattern in the surface, and is no better than other British non-metallic parts. The section of hose can easily be replaced with the fuel injection hose with suitable clamps.
Where are the return valves on the XJ6?
The return valves are located in the rear wheel wells behind semi-rectangular sheet metal covers. Turn the key “on”, select the right tank, and using your test light check for voltage at the white/purple wire for each valve. Your light should show 12 volts at all three valves. Now, select the left tank and make the same voltage tests.
How to diagnose rich running on Jaguar XJ6?
Diagnosing rich running on the fuel injected 4.2L engine, covers checking of the coolant temperature sensor, fuel pressure regulator, oxygen sensor, fuel injectors, cold start circuit, fuel changeover system, air flow meter (AFM), and ECU. This information pertains to the Jaguar XJ6 Series II-III models with the fuel injected 4.2 engine.
Where to use a fuel system check valve?
FUELAB experiences many customer phone calls that suggest people want to put the check valve prior to the fuel pump. Not so, according to their information. Although that configuration will hold the pressure to the fuel rail, it will cause an unneeded restriction prior to the fuel pump.
Where are the return valves on a fuel tank?
The return valves are located in the rear wheel wells behind semi-rectangular sheet metal covers. Turn the key “on”, select the right tank, and using your test light check for voltage at the white/purple wire for each valve. Your light should show 12 volts at all three valves.