Rattle Somewhere Under Car - TD4

If it comes and goes as you say I dont think it will be the crankshaft pulley. That is noisy all the time but intensity varies with engine rpm.

Thanks, checked splash shield, does not seem to be causing the problem.

Will take a photo of the crankshaft pulley anyway and post asap here.

Today the jerkiness and slight smoking returned.

Firstly, as Vic rightly suggested, intermittent = not the crankshaft pulley. I took off the splash shield and that looks fine.

The, went thought the things i did on that Saturday when i got the problem to go away for a while, one by one. Checked injectors, injector connections etc.

Finally, took of cable from sensor going into the side of my diesel rail (presumably fuel pressure sensor? goes straight into the side of the rail), sprayed some contact cleaner on, and started up - no more rattle, no more black smoke, no more problems!!!! Not sure how that could cause a rattle, but glad i know what im dealing with now.

My question is: do i need to get a new harness /connector / cable, or a new sensor, and how do i tell?

Didn't Land Rover make a revised a fuel rail/harness thingy in later production - i'm sure i saved a bookmark with a link but cant find it now...

Yeah, i think i read that too - my qestion is, how do i tell, if its the harness / connector, or the sensor itself?

Spraying contact cleaner on the connection solves the problem for a while.

Also, the harness / cable from the fuel sensor disappears under the engine head somewhere - how easy is it to change?

ps. anyone got the LTB00052 service bulletin service procedure document? scanned? in pdf? pretty please? Land Rover owner site wants more than just my registration for it...it wants...MONEY.

anyone done the harness replacement? got any details, hints, instructions, photos, stories, whatever? much appreciated before i get up to my elbows in engine and wires.