Hello all- I haven’t had this failure mode in maybe a year and and 1/2 but it’s back and it’s very unpleasant

Car stalls, as you are driving. Completely shuts down. No warning, nothing at all. Just shuts down. It happened to me before in a freeway….., in a parking lot….. Anywhere, really. It starts back up ….but It makes me feel like the car is not drivable .

i should mention that I have been chasing a problem where the car won’t start on the first try. Doesn’t hesitate or anything, it just clicks when I try to start it. and I have to try several times and suddenly it takes. It’s random.

I am not sure of the two things are lm related, but they might be.

I recently (a month) replaced the fuel pump with a new genuine Jaguar part, so I doubt that’s the problem. Could always be a faulty part, I guess. I have replaced the throttle body with a new genuine Jaguar part as well. I have a brand new fuse box (the one in the engine bay) coming my way from the UK too…should get here this week …

At this point I don’t mind throwing parts at the car. I want to keep it and I have already thrown too many in to give up on it….

Could old coils be causing this? That’s also on my shopping list

Please let me know what else you guys recommend I look at

 

May help to give your car details.

I can't see it being coils.

More likely something like a loose power cable. Or even something about the ignition wiring (I guess on the steering column).

It's been known to be a driver's knee knocking the key in effect switching ignition off.

 

Hey Spike, what a conundrum.

Any dash indications when it fails?
Does it throw any error codes at all?

What do you have left working when it dies?
(Lights, indicators, heater blower, radio, is odometer still reading, will the engine still crank even if it doesn't want to fire?)

First thought is does this coincide with you encountering rough patches of road......could you have something intermittent in the inertia switch area that is abruptly disabling the car?

 

no, just random , no bumps. I will look at the inertia switch next, if it continues happening after my fuse box

 

I would put a code reader on it and look for pending codes when it happens. An intermittent like that could trip a pending code but it never gets raised to the level of check engine light if that sensor or system behaves itself afterward.

 

Some models store P1582 - a sort of data recorder which has lots of data about what happened as shutdown occurred. Need such as IDS/SDD to decode it.

 

Here my 3 cents worth: I do also have a van in my collection, which drives on both: Petrol and LPG. It did happen more and more that it cuts off on LPG, THEN I quickly have to switch over to petrol. It has a carburettor. Anyway, I think I found the problem: There were dirt-particles stuck in one of the 3 LPG cut off solenoids, hence the solenoid was stuck from time to time. THUS my idea: is it possible you have dirt in you fuel lines? I'd suggest to 1st replace the fuel filter and then disconnect the fuel line where the engine block is (this requires a special plastic tool - very cheap on Aliexpress) and pump a bit of fuel out...

 

Hi gents , I was the fuse box after all. No failure to start or sudden death since it was replaced

 

One of the system relays gone intermittent?

 

Mark, details are on another thread.