Thread: d4 will not start

If it isn't throwing up any codes and the battery and starter motor are strong enough to get it up to a speed to disengage, then it might be running out of fuel, maybe try some Start Ya Bastard spray or similar. Although the web warns about removing the glow plug relay when using ether in Diesel engines. Also as the timing belt was broken that might’ve caused valve damage, I assume you have reset all the timing marks.

This post had a belt tensioner break and valves were mostly okay but a roller rocker lost some pins...Thought i had joined the broken crank club but NO!

Did you transfer all the D4 engine stuff over? Like sensors?

Theres a thread in here somewhere about needing to run the LR part or they wont run.

Originally Posted by RANDLOVER

If it isn't throwing up any codes and the battery and starter motor are strong enough to get it up to a speed to disengage, then it might be running out of fuel, maybe try some Start Ya Bastard spray or similar. Although the web warns about removing the glow plug relay when using ether in Diesel engines. Also as the timing belt was broken that might’ve caused valve damage, I assume you have reset all the timing marks.

This post had a belt tensioner break and valves were mostly okay but a roller rocker lost some pins...Thought i had joined the broken crank club but NO!

Thank you. This motor hasn't had any broken belts it is a low K territory motor.

Originally Posted by Tombie

Did you transfer all the D4 engine stuff over? Like sensors?

Theres a thread in here somewhere about needing to run the LR part or they wont run.

Thank you. I Did anther swap recently and used all the sensors on the territory motor and it started fine? 2009 Discovery.
This one is a 2011 I hope I dont have to change the crank position sensor ..

Originally Posted by RANDLOVER

maybe try some Start Ya Bastard spray or similar. Although the web warns about removing the glow plug relay when using ether in Diesel engines.

I'm going to wander way off topic and possibly into a bit of old wives tales, but I was always warned against ether based start sprays and diesels (aerostart, start ya bastard, ...). Our boat diesel mechanic insisted they can lead to cracked ring lands due to detonation. My wifes old Golf had a failing starter motor, and CRC MAF cleaner always got that going. Heck in a diesel you can use diesel in a pump spray bottle down the intake and it'll generally fire if it's a fuel system issue.

That Markus indicated it would fire for a couple of seconds would point towards something that a bit of supplementary fuel down the intake isn't going to solve.

How did you check the "fuel tank pump" pressure? I'm assuming you haven't changed any of the ECU's so it's not likely to be an immobilizer issue.

In theory if it fires at all the CPS should be ok, but you can check that by monitoring the cranking RPM with a GAP tool. The only thing that might be suspect is the fuel rail pressure sensor on the passenger side fuel rail, but checking the Siemens book it looks like they are the same between the terry and the disco (rail and sensor are a single unit with the part number A2C59513703)

If the fuel system is bled, the HPFP will suck fuel from the tank to start the car and run without the LPFP even working, but I'd be interested to look at the pressure at the schraeder just to make sure there isn't an issue with fuel supply.

I know you said the GAP didn't indicate any faults, but I'd try re-seating the plugs on both the VCV and PCV on the HPFP. When I was diagnosing my faulty pump I noticed odd behaviour when I hadn't re-seated the plug on the VCV properly and while it should have registered a fault it didn't.

Thank you for the advice .I checked the fuel tank pump pressure at the schrader valve test point with a fuel pressure gauge tester.
While manually running the pump. It was 5psi constant with fuel pump relay engaged
The gap tool shows the HP rail pressure while cranking and is fine. The start button is a bit dicky and sometimes while cranking it will stay in cranking mode as in the starter keeps cranking even after releasing it. I had to press it again to stop it .
I will try the plugs on the HPFP. Is the lower (bastard to get at plug) the VCV? it looks like its plugged looking at it in with a light.

Yeah it is. From memory it's on a short extension. Anyway, give it a poke and prod with a screwdriver just to make sure it's clipped in.

Other than that, I'm afraid I'm out of ideas.

Originally Posted by markus ringbarkus

Thank you. This motor hasn't had any broken belts it is a low K territory motor.

Sorry, I got things the wrong way around. You bought a Territory motor to replace one that broke a belt. Like you and the other thread say, there may be very little wrong with the broken belt motor. Good luck getting the new one running.

Was the Terry in a smash? If not it may have ended up in the wreckers due to mechanical troubles, hopefully not the engine.