Is there a problem with the expansion tank on a Jaguar?
A service bulletin has been put out by Jaguar for this type of a problem. It states that the coolant expansion tanks of a few 1994 MY XJ12 Sedans from VIN 673299 – 708757 have sprung leaks in the seam weld area.
When did the Jaguar xj-40 replace the XJ12?
Pininfarina raised the roof of the rear and smoothed out the rear fender line. Quality control finally improved for 1982, when the excellent HE V-12 was introduced; before that it bordered on sabotage. The XJ-40 replaced the XJ6 for 1987, while the XJ12 soldiered on until 1991.
What kind of engine does the Jaguar XJ12 have?
Compounding problems, the Series I XJ12 which followed—23,564 were sold from 1973–91—used the 5.3-liter V-12 engine found in the Series III E-type. Air conditioning was standard, but no manual gearbox was offered.
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 does the fuel system work on a Jaguar XJ12?
The fuel system is quite remarkable too; on the XJ-S there is a fuel pump in the boot sitting in its own little tank, fed by gravity from the main tank. On XJ12 there are two main fuel tanks which both feed the fuel pump in the boot but with fuel solenoids to select which tank is used.
Where is the fuel vapor recovery system on a Jaguar XJ6?
The Series III XJ6 Jaguar has a fuel vapor recovery system, which captures excess fuel vapors inside the charcoal canister located in the front right fender. Sometimes this system gets clogged or a pressure valve malfunctions, leading to a substantial vacuum in the fuel tank.
A service bulletin has been put out by Jaguar for this type of a problem. It states that the coolant expansion tanks of a few 1994 MY XJ12 Sedans from VIN 673299 – 708757 have sprung leaks in the seam weld area.
What should I do if my Jaguar XJ12 keeps stalling?
The best recourse is to troubleshoot and determine the true cause of the problem. What can be done if a Jaguar XJ12 keeps stalling while driving? Take out one of the spark plugs and reconnect it into its lead. Then, crank the engine and check if there is a blue spark from the plug at regular intervals.