From my experience with p38s albeit not diesel they don't take well to low voltage and jump starting modules can loose sync you can have immobiliser issues get a good battery and keep chargered up you will avoid loads of headaches. If it still doesn't start spray something flammable on the intake and see if it will get it going at least you will rule out fuel issues.

You need to undo number one injector pipe to prove there is fuel going into the engine

Definetely there is a very good chache that a new fuel filter solves the problem. I had an e34 with the same engine, died on me twice because of the filter.

Land Rover .. turning owners into mechanics since 1950-whenever .. good to see Range Rover staying loyal to the brand as to what's wrong with it .. NFI ( same as anybody else who has only watched a video of a car not starting ) But you'll work it out Sam

Good video Sam. Go right back to basics, change the fuel filter, then check to see what flow you have from the tank to the filter ? There is no access panel for the fuel in the tank, but you can cut yourself one under the rear seat, I used to think this sort of thing was butchery, but it’s sooo much easier than dropping the tank……

My heart sank watching it fail to start around the 16 min part.

Loving these videos of the P38, hope you get it sorted, but know you will. 👍👍👍👍

Crankshaft position sensor possibly worth a try as relatively cheap part but get an oem sensor as cheap ones are rubbish and cause more issues than they are worth

As a long term P38 owner (4.6 V8) the problem could well be the fact that the battery has drained down too far, causing the ECU to lose sync with the BECM, hence the turning over yet not firing issue.. I have suffered that myself with mine in the past, although re syncing them back is quite easy (at least on the Gems variant)..

Great work on the glow plugs, I had a suzuki grand vitara. Changed the set on it . Starting problem sounds like low battery voltage. I have a VW LT 46 van needs a jump after a few days. Great work on p38 👍👍

Just done 6 glow plugs on a tdv6, seeing this made me grin, so easy to do on the older engines. Spraying them with oil does nothing they are either going to go or they are not. It does make you feel better though ;-)

Thanks for another great video 👍🏻 few basics to try, Injector leak off pipes? Vac pipe under inlet manifold? Cranking was a bit sluggish? Fuel filter, crack banjo to see if flowing/bleed, crack injector 1 to check flowing.? Glow plugs getting power? If no check fuse,relay,temp sensor? Good luck hope it’s a simple one

the injectors are sucking air so the fuel runs back to the tank, to fix that change the fuel spill return pipes and it'll start like normal

Thanks for the video. I think your camera assistant did a great job too!

did you put the vacume pipe back on underneath the inlet that you disconnected as you removed the old manifold? dunno if that would cause a non start but didnt see you put it back on in the video

Another good video 🚘🚙🚗👍👍👍👍👍⭐️⭐️⭐️⭐️⭐️⭐️

Hello I had same problem with my p38, the problem was pump in tank, if pump making noise doesnt mean it pushes fuel so my was runing but not pumping fuel.

I have put another engine in mine and it didn’t want to start so I tried it from a can of fuel and then swopped back to the tank, the fuel sender is working but not as well as it should I’ve recently found that when the gauge reads 1/4 it is close to or is empty

was that the new style halfords pro socket set you have there? The ratchet had quite a few clicks to it

I'd start with a new fuel filter and bleeding the system. When it died it sounded like fuel starvation

Did my glow plugs on my p38 back in may. Worst two days of my life 😂 somebody had used a impact gun to fit the harness to the glow plugs. Nearly ripped the harness lol just replaced the whole rear exhaust including that middle section you wanted to fit also. It’s not a bad job just takes a lot of time. Need to fit a new belt to the aircon to the camshaft pulley (replaced that also) then it’s ready for its MOT. Loving the videos mate!

Never did quite figure out why that BMW diesel was indirect injection

Fuel stop switch was disconnected or faulty? P38 and L322 which is more home mechanic friendly? Or can do road side repair?

That is definitely not turning over fast enough Sam. The heater plugs actually working now it draining the bit of power you have. Crack off the inlet fuel pipe from the injector pump and make sure you have good flow from the in tank pump. The in tank pump will cut out after a certain amount of time also. So find teh relay in the fuse box under the bonnet, cross the wires so that the in tank pump stays on while starting it for the first time. You may also have an air leak at those crusty old leak off pipes, so change them to make sure you are not getting any air in the system after it does actually start

Hi can you give my the name of the font you used in the thumbnail?

Going back to my P38 days…… a good long while ago… Didn’t the diesel version have an issue with the in tank pump and pick up pipe cracking? Struggled to start/ run if tank was less than 1/4 full? I want another P38 now after watching your videos

You gotta love the interchangeable parts. BMW manifold on an old Range Rover. I love these Range Rovers and wish I had one to do up. Or could afford to do one more like it. Such great cars to drive.

Thoughts on putting a smidge of Copper-slip on the glowplug threads prior to reinstalling... 🤔🤷🏼‍♂️

Sounds like battery was dying Sam too 🤔

Is there an update on the P38's dead engine ? Was the car brought back to life or is it now in Land Rover heaven ?

Think it is immobilised?

Hi Sam i looked forward to this next P38 video which seemed a long time coming anyway i am sorry you seem to be having problems with your beasty☹i know very little about the 2.5 P38 which is what i also own but am learning fast. As whats been said it does sound like a fuelling/air issue when i bought my 2.5 it had a none return valve already fitted to the fip from the fuel filter and a brand new battery. So the clues are there i have only had my P38 2.5 auto two weeks my previous were all V8s so derv is new to me and is already testing me! With its "engine disabled" when it wants and marking his territory on the drive from the diff and dipstick and steering pipes and now leaky heater matrix O rings etc. But i still think he is such a good looking beast it makes the grief all worth while and driving it when its working properly is superb or will be when i fit some original spec 18s instead of the terrible 20s fitted when i bought it. Anyway keep em coming i bet your next vid will be i have sussed the problem and he's running great 👍

I still have rhe p38 door seals if you want the?? Free of course

Not enough pixies in there. More ground cleaning....... more 12v and she'll crack right off. Big BMW' s dont like low volts, not even a .5

I would just have plastic welded that small hole

Wasn’t turning fast enough IMO

when you say 'throw these in' is this what your actually doing!! or have you been watching too much American content?

Buy a Toyota and enjoy life !