Hi all, new to the site. I've got a 96 Disco 300 TDI XS with an annoying intermittent cutting out problem. I've changed / inspected a few things, researched on the forum for similar faults, but can't find nothing. I'll explain the symptons and what I've done so far (sorry if it's a bit long).
It started after I removed the fuel tank to weld the boot floor. So i initially thought I had either damaged / snapped / trapped something. So I removed the fuel tank again, but the breather pipe was fine and un-blocked, but the unions on the sender unit had seen better days. As I was un-doing the unions on the fuel sender unit the elbow snapped off, so I replaced the sender unit for a brand new one thinking this was the problem.
The car drove fine for about 100 miles until the same thing happened, the revs would die, even with the throttle pedal hard to the floor, then the engine would start reving up to about 3000 rpm a few times, still with the pedal hard to the floor, and then just eventually cut out all together. After waiting a few minutes the car would start first time but won't idle very well. I can then drive about 500 metres and the problem starts all over again!! Rather annoying.
After researching a few things on here i've checked and replaced a few things, but the same symptons seem to occur. I've checked to see if I have the dreaded spider box, which my car hasn't got. I then cleaned the sedimentor, replaced the fuel filter. Again the car drove perfect for roughly 100 miles until the same symptoms occur.
I then replaced the fuel stop solenoid and DDS valve (the black box hiding the fuel solenoid, which has 3 wires going to it). I changed them this morning, along with a brand new battery, and the car would start first time every and idle at about 750 rpm all day. But as soon as you go to drive it the same things happen! But what i've noticed today is that alot of white smoke comes out of the exhaust when revving hard to stop the engine from cutting out. The smoke stinks of un-burnt fuel, so i removed the glow plugs to see if they were wet, but none were.
Sorry for the essay, but I'm stuck as what to do now!!!
Any help is much apprectiated.
Cheers,
James
It started after I removed the fuel tank to weld the boot floor. So i initially thought I had either damaged / snapped / trapped something. So I removed the fuel tank again, but the breather pipe was fine and un-blocked, but the unions on the sender unit had seen better days. As I was un-doing the unions on the fuel sender unit the elbow snapped off, so I replaced the sender unit for a brand new one thinking this was the problem.
The car drove fine for about 100 miles until the same thing happened, the revs would die, even with the throttle pedal hard to the floor, then the engine would start reving up to about 3000 rpm a few times, still with the pedal hard to the floor, and then just eventually cut out all together. After waiting a few minutes the car would start first time but won't idle very well. I can then drive about 500 metres and the problem starts all over again!! Rather annoying.
After researching a few things on here i've checked and replaced a few things, but the same symptons seem to occur. I've checked to see if I have the dreaded spider box, which my car hasn't got. I then cleaned the sedimentor, replaced the fuel filter. Again the car drove perfect for roughly 100 miles until the same symptoms occur.
I then replaced the fuel stop solenoid and DDS valve (the black box hiding the fuel solenoid, which has 3 wires going to it). I changed them this morning, along with a brand new battery, and the car would start first time every and idle at about 750 rpm all day. But as soon as you go to drive it the same things happen! But what i've noticed today is that alot of white smoke comes out of the exhaust when revving hard to stop the engine from cutting out. The smoke stinks of un-burnt fuel, so i removed the glow plugs to see if they were wet, but none were.
Sorry for the essay, but I'm stuck as what to do now!!!
Any help is much apprectiated.
Cheers,
James