Thread: My turn

dont forget this possibility http://www.aulro.com/afvb/discovery-...fuel-pump.html

Thanks for your reply.

I have seen the mentioned thread and while I have yet to crawl under with rubber mallet in hand I do hear the pump making pump sounds prior to starting the engine.

But the pump does represent an interesting area of enquiry. I'll will review the various manuals to see if there is a way I can test, again without a Nanocom, the output of the pump.

Again, thanks

See how it runs with the MAF disconnected..

PM sent to LCS

Aaron40. My present thinking is that of the three main systems, fuel, air and ignition (Which is a misnomer for a diesel) the problem is likely to be electrical in origin. Hence my present focus is on the injector loom and the gizmos hanging off it. I have cleaned, peered within and cleaned again the MAV/MAF sensors. While I've yet to measure them I'll keep them connected for the time being.
Thanks for your input
LCS

Gentle readers

Current status of my urban panzer. Found a page on an alternate site where the writer had a similar problem but with a twist. The injector loom was replaced and all went well until a bumpy road was traversed. The bumps caused the engine to loose power, running on the wrong number of cylinders. Turns out the wiring loom was rubbing up against something harder than the cables which a bumpy road exposed as an intermittent break in circuit.

The neat thing about the article is that I got an easy to understand, for me, pin out diagram that showed the cross over at the ECU and Injector loom. So, with multi meter in hand I 'buzzed' each of the circuits. Got continuity across all. Next step, hook up 12vdc/500ma placing the meter in a series circuit and see if I can draw a load. Again all five showed a load but here is the twist. Solenoids 1 to 4 clicked on power up. Solenoid 5, injector 5, stayed silent. Hmmmm

Next step is to take the rocker cover off again, this will be the fourth time, and buzz injector 5. If it clicks then the problem is in the circuit. If the injector solenoid does not click then it will be back to the drawing board.

Fingers crossed
LCS

Folks,

This morning I pulled the truck into my garage. Took the rocker cover off for the fourth time. Removed the loom then applied 12vdc/500ma to each injector solenoid.

Result - injectors 1 through 4 produced an click. Injector 5 stayed silent. Advanced the engine a few turns to ensure cam settings were not a factor. Performed the same test and received the same result

Therefore, injector 5 has failed.

I've a few questions concerning this and would appreciate hearing your thoughts. The motor has 130k on it, still quite young and fresh. There is no shrapnel in the injector well indicating breakage; i checked with a magnet.

My thinking is that the valve has become fused/stuck into the valve set from either wear/sludge etc. What are the potential causes of this type of failure? Is this failure simply the luck of the draw or is it a known issue.

My next question is the more fundamental one. Who in the NSW Parramatta area is best suited to fix this type of problem and what is the going rate. My thoughts are one day labour plus parts but what the heck would I know.

Thanks everyone for your kind support

LCS

As far as I understand the injectors on a Td5 are quite robust and not prone to failure. Some Td5 defenders I know have had 1 or 2 fail after runing them out of fuel, but that is like anything, if its mechanical it will fail, 1 day,somewhere, somehow . Sorry not know of any mechs in your neck of the woods.

cheers