Hi from australia. I co-own a company called hardrange, which builds and sells aftermarket accessories for rangies, mainly the p38.

I'm trying to fix an engine problem with my TD6. I purchaced it with an engine problem and not running. It was running fine for the previous owner, then it ran rough and stalled in traffic. He took it to the closest dealer who promptly changed the fuel pump, but this didnt fix the problem. The dealer then sudgested the turbo, but i find this hard to believe as it doesnt even fire up. I plugged in my snapon scanner today and checked the codes. Engine ecu low voltage, and somthing about glow plugs.

The battery was flat (12v) so i charged it and cleared the faults. They didnt return. I removed the air inlet and held a petrol fume rag infront (works similar to aerostart on a diesel) and it fires but you can tell that their is no fuel going in or not enough to start. I checked the fuel preasure phisically (puled the hose off after the filter) and electrically - scanner said 3.6 bar). I unplugged N0 1 injector and this logged a code, so they are all still talking. I checked the glow plug relay - putting out 12v, so thats ok.

I have checked the condition of the fuel by purging with fresh.

I also removed all the return pipes from each injector and inserted a piece of tube over the fittings. No fuel seems to be coming out of the injector returns at all when the engine is cranking over at all. There is fuel preassure however coming out of the return pipe at the front which all the returnd feed into??? I thought that this pipe was meant to flow back to the tank?

any sugestions????

Andy hardrange.com

HARDRANGE ANDY wrote:

I also removed all the return pipes from each injector and inserted a piece of tube over the fittings. No fuel seems to be coming out of the injector returns at all when the engine is cranking over at all. There is fuel preassure however coming out of the return pipe at the front which all the returnd feed into??? I thought that this pipe was meant to flow back to the tank?

any sugestions????

Andy

i see you didnt get much help on rangerovers.net then.. ...maybe it'll get solved here.

elpeede wrote:

This has me a little confused, have you tried each injector with a leak off test.. i.e. 6 pipes in to 6 vessles?

elpeede wrote:

There are two pumps, Low pressure and high. Sound like your high pressure is ok from your results. Do a search on Low pressure pump, its been discussed recently but I've just finished a night shift here in blighty so I can recall the finer detail.

scarey wrote:

i see you didnt get much help on rangerovers.net then.. ...maybe it'll get solved here.

try looking for info on a e39 bmw 530d or an e53 x5 3.0d they are the same engines as td6 2002 td6 vogue, 06 supercharged facelift

darrenmax wrote:

try looking for info on a e39 bmw 530d or an e53 x5 3.0d they are the same engines as td6

Ok sound like an injector pump issue then. I can't recall where the sensor is that shows you with 3 bar.. maybe the blockage is further down the line. 2010 Disco XS TDV6, 2009 Freelander 2 GS

Previous Landrover products -1990 110 TDI CSW, 2003 TD6 Vogue - RRC TD Vogue, RRC v8 Fleetline, Disco ES V8 LPG, 101 Ambulance "Morph", 1964 SIIa Auto Powered by Jag 4.2 Lump - "Percy".

elpeede wrote:

Ok sound like an injector pump issue then. I can't recall where the sensor is that shows you with 3 bar.. maybe the blockage is further down the line.

IT RUNS...


after changing the fuel fillter, and crank case filter (in the top of the rocker cover) It still wouldnt start, so i stripped the inlet manifold off and had a looksee. I sort-of understand how it works, now. I re-assembled it and tried cranking with atomised wd40 sprayed into the inlet manifold (before i was spraying into the MAF), which still didnt work. Tried again with a petrol rag, and it fired and started. It ran rough, blew some white smoke, then settled down. I let it get warm to bleed all the air out of the system and it starts and idles well.

It doesnt idle as smooth as it should though, and i think it may still have a dickey injector or 2. I unplugged 1 at a time (if you unplug 2 the computer goes into fault) and there was hardly anything noticable when you unplugged #1 or #5. I will be doing more checks today aswell as swapping the injectors around.

Andy hardrange.com

Try the leak off teast again to be sure.. then consider swapping injectors about, and again try the leak off test. Also check the injector harness.. there must be a big plug on it somewhere I guess.

Good news that it runs mind  2010 Disco XS TDV6, 2009 Freelander 2 GS

Previous Landrover products -1990 110 TDI CSW, 2003 TD6 Vogue - RRC TD Vogue, RRC v8 Fleetline, Disco ES V8 LPG, 101 Ambulance "Morph", 1964 SIIa Auto Powered by Jag 4.2 Lump - "Percy".

Injector wiring harnesses are prone to breaking down with engine heat as well. Maybe you can unhook and do a continuity test on? Part of the harness failed on my 05 TD6 and went down onto 4 pots leaving me stranded 100 miles from home. Anyway what I thought might be a big bill turned into an hour at indies and a new harness piece - £95 all told.

JIMMYM wrote:

Injector wiring harnesses are prone to breaking down with engine heat as well. Maybe you can unhook and do a continuity test on? Part of the harness failed on my 05 TD6 and went down onto 4 pots leaving me stranded 100 miles from home. Anyway what I thought might be a big bill turned into an hour at indies and a new harness piece - £95 all told.