I am the "proud" owner of the above. it has a few "niggling" electrical issues (fuel gauge not working, oil pressure gauge irratic, ABS lights, Lamp out light, dash lights etc). My mechanic tells me all of these problems are stemming from an electrical module that Ford changed from the 1991 to 1992 model. it was a later version of a kind of voltage regulator. We are trying to lacate one of these units.

Any suggestions as to what he is referring too and where can I find one?

Thanks.

 

Congratulations on ownership! As far as parts, try Coventry West or Welsh Jaguar. I think there are a couple of Jaguar breakers as well.

If you haven't done so already, try cleaning all the ground points, as well as the battery terminals.

Be sure to download Kirby Palm's book linked in the stick at the top of the page.

Welcome, and post some pics!!

 

Thank you. I do have Kirby Palm's publication. I was wondering if anyone her new about the component my mechanic was referring to. He has over 250 cars that he owns including a Jag Mark V DHC and several E-Types (6 and 12) so there is no doubt he knows what he is doing. I am just curious. I will post some pics of my baby.

 

Gorgeous Jag :-)

To increase your chances of success find out from your Jaguar mechanic the exact name/functon of the module in question.

Cheers
DD

 

Nice car. I noticed that it's a 2-seater. When I was shopping for a XJS, I almost bought a '90 until I noticed it only had 2 seats. I needed the back seat for the rugrats. Saw a few 94's that were a bit out of my price range that had 4 seats, so I started to focus my search on the facelift models. Finally found my '92 coupe that I could afford and had a back seat. So...apparently the '92 converts were 2 seaters and at some time between '92 and '94 they changed to 4 seats. Add to the mix that at some time mid-93 they changed from inboard to outboard rear disc brakes and from the 5.3 v12 to the 6.0 v12 and you start to wonder how many cars of each combination exsist?

howlinowl

 

Not a convertible fan myself (where are my flying buttresses!), but I prefer the ones without the visible 'stack'. are those the H&E?

Nice car, though!

 

@AndrewB

Beautiful car. The interior in particular looks amazing for the year.

I am hoping the chrome wheel arch trims are only on for appearance, and not to cover up rust (as was common in UK cars)

I am interested in learning what part your mechanic is referring to.

Looking at the electrical diagrams, the items you have that are not working don't seem to have any one component in common, although the ABS and the interior lights are powered from the right hand fuse panel under the dash, and this fusebox is powered through an "Aux load relay" Do your wipers work ? Passenger seat movement ? Central locking ? (If so these are also powered from the right hand fuse panel, so that would rule out a failed aux load relay.

Oil pressure gauge....... I have went through 4 senders recently..... my mechanic claims there is a bad batch going around. Take the wire off the sender (it's located kind of under the throttle cable tower at the back of the engine and ground the wire. If the gauge goes full reading, it suggests the gauge is ok and the sender is at fault

Fuel Gauge...... There is an anti-slosh module that can affect the gauge. It seems to be more popular that the anti-slosh fails rather than the float sensor in the tank. Personally I use the trip computer for fuel monitoring and it's very accurate.

Having lived with an XJS now for 3 years, it does not seem unreasonable that your faults are all due to separate things going wrong at the same time :-)

 

Yes... when H&E did the design Jaguar *insisted* on a 'low stack.' H&E engineers protested that this would cause the stack to be sopping wet with gasoline as it would submerge in the fuel tank. Jag's answer "You figure it out! What do you think we're paying you for?"

H&E split the gas tank. Jag did not want to pay for EPA recertification of an entirely new fuel system, so the original pump had to take the pickup from the original sump. This required several complications in the system including a separate pump running full time in the secondary tank. Additional connections in the fuel lines combined with the dodgy fuel tank pressure relief system common to all XJ-Ss (later subject to recall) resulted in complaints of fuel vapor smells in the cabin.

When Jag released the factory XJ-S convertible 2 years later, apparently the company engineers had better success with the management (or they got sick of fuel vapor complaints) as they dropped the design constraint and all subsequent convertibles have the 'high stack.' IMHO they both look good, but I do prefer the lines of the low stack.

Cheers,

- Will

 

Thanks for the info. I will discuss all with my mechanic. As far as rot is concerned; there is zero rust on the vehicle. It has been a Florida car all it's life. it has never seen rain. In fact, when the seats came out (all of the leather and carpets are brand new) there was absolutely no rust anywhere.

Once i find a solution I will post.

 

Andrew, what was wrong with your fuel gauge? Have the same issue.

 

Not entirely sure at this point. My mechanic did order an electrical control module from L A Jag and it is supposed to be installed over this winter when the car is having a major overahaul.....seals replaced, oxygen sensors replaced, brakes replaced and all these niggling issues resolved. I know it is not the sender or the guage.

Once this is resolved i will advise of the component that was used to fix the problem.