Jaguar XJS

ACCORDING TO MY SHOP MANUAL: 1A-6B-5A-2B-3A-4B-6A-1B-2A-5B-4A-3B

A is RH bank, B is LH bank as viewed from the front.

i need the answer

Fuel Fault 22:

Fuel pump drive circuit. Checks for short or open circuit to pump relay.

There's a full list of fault codes here:

http://www.jagweb.com/aj6eng/fault_codes.php

This car (as you probably know) has 5 fuse panels. Which lights are out?

COLOR JBC# PAINT CODE ANTELOPE 322 AFM VDP BLACK 373 PDE VDP CIRRUS GREY 320 ANC CLARET 310 CEA COBALT BLUE 286 JDM CRANBERRY 316 CEE VDP CURLEW 704 AFT JAG RACING GREEN 705 HER REGENT GREY 315 LDL RHODIUM SILVER 396 MDE SAGE GREEN 314 HEG VDP SEBRING RED 287 CDJ SILVERSAND 380 GDA VDP STEEL 708 LEC TUDOR WHITE 215 NDC WINDSOR BLUE 706 JEV

On the back of the fuel tank, about in the middle, behind the carpet and spare wheel.

This is a common problem. the rack mount bushings have failed. it's best to replace them with the aftermarket urethane type, they last longer and are easier to install.

whit@brititishparts.com

Worn or improperly inflated tires? Worn steering parts? Bad tie rod end? Worn or improperly inflated tires? Worn steering parts? Bad tie rod end?

The Parts Department at my local Jaguar dealership sold me a liter of Pentosin CHF 11S. However, since then the leak in the system has gotten worse, but I don't know whether that's attributable to the Pentosin or the Preston Power Steering fluid my personal mechanic used before I bought the Pentosin.

19 gallons

8 quarts of oil is required

Standing in front of the car facing the car, you will find it on the right hand side. It has a black cap on it that needs a twist to open and has some filling instructions written on it. Look carefully, it is situated between the aircleaner filter and the front engine pulley. Difficult to fill without spilling.

What ff14 means is that there is a fault with the coolant temperature sensor. This could mean a blockage in the system (radiator, thermostat, water pump, etc), the temperature switch, or a loose connection.

their is a fuse box on the left kick pannel, and right kick pannel and center consel, my bet is left pannel for brake

the fuel pump is located in the fuel cell. the sending unit for the gage & the fuel pump are on the same bracket.

Recently, Ford owns Jaguar but, the parts are still made in Conventry in England.

Hi - I did this once myself several years ago, in order to replace a faulty (permanently locked-up) thermo-fluid coupling (attached to the rear of the fan).

Firstly, you will need to remove all the belts - one by one. This can be done from the upper side (bonnet) of the engine (all at the front).

Once you have these off, you should be able to fit a spanner / socket down behind the fan, where the coupling attaches to the bearing block - this is very fidly, but is possible to do without having to remove anything else. From memory, there are 3-4 bolts holding the fan assembly to the bearing shaft-coupling.

Once you have these off the fan and thermo-coupling are still attached together, but they are loose from the engine, and with some movement and shuffling can be got out through the gap from the upper side of the engine.

The yellow fan can be disassembled from the thermo-fluid coupling if required.

Refitting is the reverse of all the above.

call medina motorsports talk to john 1800 700 7057

For XJ6 4.0 Liter engines, the oil capacity is 8 quarts.

It's not possible to give a one line answer here, and one needs to read up on the subject in great depth to understand the issues. For example, with more power there will be more heat produced by the engine and this needs to be dissipated - larger radiator, bigger fan - that sort of thing. There are two main types of supercharger - centrifugal and screw - each with significant pros and cons. Centrifugal are small (looking a little like a turbocharger) so relatively easy to fit in the cramped XJS engine bay but only produce useful pressure at high speeds so boost takes a while to kick in - not what you expect from a V12. Screw-type compressors are more efficient and have a wider range of boost speed - but are more difficult to fit (especially on the V12) and are more expensive.

Then you need to consider charge cooling. The compressor will make the air/fuel into the engine hot - not what you want for efficiency, so an intercooler needs to be designed and fitted - a big challenge in the XJS! There is a choice of air to air or water to air cooling.

Then there's the engine structure. Will it take the additional combustion pressures? Any latent defect (cracked conrod etc) will be provoked by an increase in power. So the engine needs at least to be blue-printed and preferably have a stronger crankshaft and beefed-up conrods. The HE V12 is less suitable for supercharging as the lean-burn head limits A/F ingress, so really one needs to change to the earlier flat-head engine. You need to consider the compression ratio - the HE at 12:1 will be too high.

The engine computer (ECU) will need to be re-mapped for supercharger use as the amount of fuel used will be very different - and the ignition timing will need to be modified. The Lucas ECU can't be re-mapped in the modern sense, so a new engine management system will need to be designed and installed - a fairly major task in itself.

So - it's all do-able, but nothing you'll need is off the shelf, there are no kits, so it has to be a one-off design. There are some private individuals who have done this, and Lister made the Lister Le Mans supercharged 7 litre XJS. I'd strongly recommend finding one of these rather than attempting to do it yourself on your own car. But if you do go ahead, be prepared for a spend of at least £20,000 - even with you doing some of the work yourself.

Having said all of that, I do encourage people to have a go, so if you approach it with a well-filled wallet, lots of time and patience and the utter preparedness for failure it can all be fun!

{| |- | Idle air control valve. Looks for stepper wildly out with hot or cold(<30degC) engine. Probably a sticky stepper motor, but cleaning mmay help. Chris, www.kwecars.com

|}

it's very possible that its the anti lock brake booster. Its that round black ball with yellow lettering on the right hand side of your engine compartment. When that starts failing your brake pedal can go down to the floor or even kick back at you sometimes. The part is about $200.00, but you need a specialist to replace it because its under high presure.

When all else fails, check your Drivers Handbook.

You must first remove the rear suspension assembly. It's simplest to disconnect the exhaust system at the 3-pointed flange nearest the front of the suspension cage and remove the subframe with the rest of the exhaust still in place through the cage. Disconnect the brake hose, handbrake cable and propshaft bolts on the differential. Very important: Remove the speedo sensor on the back of the diff (difficult) or disconnect cable (under rear seat) and feed cable back out through hole in floor). Support rear subframe on a big jack with spreader (assuming you already have the car on high axle stands or a lift) and undo the 8 bolts securing the 4 rubber subframe mounts. (You will of course have removed the rear wheels, and you'll see the mounts attached to the chassis member). And out she drops. Then to remove the diff you'll need to disconnect the half shafts, the inner fulcrum bearings mounts and then the four wired bolts in the top.

It means there is a fault in the fuel system or something that controls the fuel system. A quick check is to disconnect one of fuel supply lines at the front of the injector fuel rails and see if fuel is being pumped to the rails when you crank the engine (have something prepared to catch the fuel). If no fuel flow, it is a fuel supply problem (see below). If fuel is getting there you could have a computer that controls the injectors that went bad. (So sorry).

For fuel supply, this could be a pump relay, a main relay, a wiring problem or the fuel pump has gone bad. Start with the inertia relay (black box on r. door hinge post. Should be pushed down. Then go to main relay and then pump relay. If power from the pump relay to the fuel pump (located in the gas tank) and power at the fuel pump, your fuel pump has gone bad.

Weight of the XJS coupe is 4,000 pounds with V-12 engine (2+2 sport model, not the sedan)