This 1994 Jaguar XJ12 factory service and repair manual is built around the 6.0L V12 (VIN 3) and Base Sedan trim, so the torque values, wiring diagrams and diagnostic steps you're following came from Jaguar for this exact car, not adapted from a different engine or year.
Engines
- 6.0L V12 (VIN 3) Gas
Trims
- Base Sedan 4-Door
Known issues on the 1994 XJ12. Two recalls are on federal record for this model year. The first concerns aftermarket FRAM replacement fuel filters whose connector didn't meet the O-ring seal specification, which can leave an inadequate seal at the connection and, in the presence of an ignition source, lead to a fire. The second covers the hood liner, which can sag and interfere with the throttle linkage, causing high engine idle speed and increasing the risk of a crash. Owners have filed 16 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind both of those systems are here.
From tracing a fuel line connection to checking hood liner clearance at the throttle linkage, it keeps you on the OEM procedure and the correct specification for your specific 1994 XJ12.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE HOOD LINER CAN SAG AND INTERFERE WITH THE THROTTLE LINKAGE.
THIS CONDITION CAN CAUSE HIGH ENGINE IDLE SPEED, INCREASING THE RISK OF A CRASH.
DEALERS WILL REPAIR THE HOOD LINER.
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURE
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB
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SECURITY SYSTEM TRANSMITTER DIAGNOSTIC PROCEDURE. *EH
Showing the 8 most recent of 18 technical service bulletins on file with NHTSA.
BRAKE PUMP FAILED, CAUSING LOSS OF CONTROL/ACCIDENT/INJURY. *SKD
IGNITION FAILURE RESULTED IN VEHICLE FIRE, POSSIBLY RELATED TO THE FAULTY DESIGN OF THE MARELLI IGNITION SYSTEM. *MJS
THIS IS A 12 CYLINDER ENGINE WITH ONLY 6 CYLINDERS WORKING. THIS CAUSED UNBURNED FUEL AND AIR TO BE PUMPED INTO THE FUEL EXHAUST SYSTEM, WHICH THEN OVERHEATED THE CATALYTIC CONVERTER AND STARTED A FI
THIS IS A 12 CYLINDER ENGINE WITH ONLY 6 CYLINDERS WORKING. THIS CAUSED UNBURNED FUEL AND AIR TO BE PUMPED INTO THE FUEL EXHAUST SYSTEM, WHICH THEN OVERHEATED THE CATALYTIC CONVERTER AND STARTED A FI
TL*THE CONTACT OWNS A 1994 JAGUAR XJ12. THE CONTACT STATED THAT THE VEHICLE DEVELOPED A LEAK IN THE COOLANT EXPANSION TANK ALONG THE SEAM WELD. WHILE DRIVING 55 MPH, THE RADIATOR FLUID LEAKED AND TH
Showing the 5 most serious of 19 complaints filed with NHTSA.
