Thanks for the reply a_romeo_75491. Interestingly it was on the basis of your post about a new fuel pump fixing a misfire that I replaced the one in my car but unfortunately it did not work for me. I have also replaced all six coils with new Lucas items so it shouldn't be that. I am pretty much out ...

So I replaced the fuel pump (see separate post) but it has not fixed the engine hesitation / misfire. I fitted a new intake air temperature sensor on the basis it was the only sensor I hadn't changed. I retro-fitted the original crankshaft speed sensor bracket and sensor in place of the Andy bracket...

Some tips on replacing fuel pump on 1995 XJS 4.0 Coupe – Part 1 I have just completed the fairly arduous but doable job of replacing the fuel pump on my 1995 4.0 XJS Coupe. Researching online advice on Jaguar forums says this is a horribly difficult job, the flow and return fuel pipe connections ar...

Some tips on replacing fuel pump on 1995 XJS 4.0 Coupe – Part 2 8) The workshop manual says these are Legris connectors but on my 1995 car they are a simple push-in connector with two ‘o’ rings all held in place with a spring clip. The male part of connector looks like this; Male connector.jpg The ...

Some tips on replacing fuel pump on 1995 XJS 4.0 Coupe – Part 3 13) Now time to tackle the filler neck assembly. Lower the car. Working in the boot remove: - The battery tray - Any remaining carpet - The two metal straps holding the fuel tank in place. - Lift the boot seal from the front edge of th...

Some tips on replacing fuel pump on 1995 XJS 4.0 Coupe – Part 4 23) Jaguar have a special tool JD175 to prevent sparking when undoing the pump outlet pipe jubilee type clips. For obvious health and safety reasons you should follow Jaguar’s method rather than do what I did which was to use a combina...

Some tips on replacing fuel pump on 1995 XJS 4.0 Coupe – Part 5 34) Now that the fuel pipes are in place tighten the fuel filler connections, fit the right angled bracket and angled breather pipe connector between tank and filler neck. I left the car raised so I could easily check for leaks. Angled...

Thanks Nick it is re-assuring to hear that another car of the same period has the same set up. FYI my car has the same angled breather tube connected to the filler neck however I think the other end of this is one of the internal tubes that poke up into the breather flange on the top of the tank. Wh...

Hi I am replacing the fuel pump on my 1995 XJS 4.0 and while getting access to the fuel tank noted that the larger hose connector on the breather assembly at the top of the fuel tank did not have a pipe connected to it. Is this correct for this model? I can't suck or blow through the connector but I...

I have replaced both exhaust manifolds with good used items sourced from ebay. I painted them and re-fitted with new gaskets, donuts, extended brass downpipe fixing screws, new bolts etc and all looks good (heat shield also cleaned up and ready to fit). PXL_20250427_164053664.jpg But it has not solv...

Thanks for the replies. Update - I contacted one specialist welding company earlier this week who estimated about £500.00 for each manifold repair. This included welding, grinding, crack testing, machining, and bead blasting but it is a lot of money at £1,000 in total. I managed to find a more local...

Thanks for the responses. It does make sense that on light throttle air is being sucked back into the cylinders causing the misfire so I am hopeful that fixing them will solve the problem. At the moment I am tending towards getting them repaired. The other options are a) a second hand unit but most ...

I finally managed to get back to this. I removed the exhaust manifold cover and identified cracks in both front and rear manifolds. This is accompanied by soot staining on the inside of the cover. I can't see any sign of the gaskets leaking. This could explain the misfire although it is slightly cou...

Apologies for the long post but I still have this misfire. To recap the car is a 1995MY XJS 4.0 Manual. The engine starts readily cold or hot. When starting from cold if runs beautifully smoothly for a few minutes than as the temperature increases so the misfire is introduced. When it is warm you ca...

This refers to a 2019 Jaguar XF X260 Sportbrake 3.0T. When I bought the car (pre-owned) it came with two keys. Key One I have used constantly and has been ok. Tho other day I thought I would try the other Key Two but got no response from the car, no unlocking, no tailgate opening, no start and no me...