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flat cap andy

Active Member

• Oct 27, 2013

• #1

Well not really. Has this ever happen to you?
You are zooming (well 65mph) up the motorway when your engine decides to cut out, then after sitting on the hardshoulder for 10 mins your engine starts and you continue your journey...10 mins later the process continues, engine cut out then later restart and then again.
The annoying thing about this is when driving off the motorway/around town the engine is fine.
I am guessing something electric in the fuel pump, I've changed the stop soleniod to no effect. The disco is the 300TDI auto with all that electrical stuff in it!
Any ideas you clever people?

 

The V8 man

Well-Known Member

• Oct 27, 2013

• #2

Sounds like a fuel related problem, check your fuel filter if its a little blocked it may not be letting enough fuel through at greater speeds

 

bankz5152

Well-Known Member

• Oct 27, 2013

• #3

That happend to my TD5 last year, turned out to be bad earths. Battery - chassis and gearbox.

Id check em

 

thebiglad

Well-Known Member

• Oct 27, 2013

• #4

flat cap andy said:

Well not really. Has this ever happen to you?
You are zooming (well 65mph) up the motorway when your engine decides to cut out, then after sitting on the hardshoulder for 10 mins your engine starts and you continue your journey...10 mins later the process continues, engine cut out then later restart and then again.
The annoying thing about this is when driving off the motorway/around town the engine is fine.
I am guessing something electric in the fuel pump, I've changed the stop soleniod to no effect. The disco is the 300TDI auto with all that electrical stuff in it!
Any ideas you clever people?

Click to expand...

Sounds like a fuel supply problem. The lift pump is mechanical, as is the injection pump so no electrics there.

I would be check the sedimenter at the back as this is often full of jelly like muck:




All the muck and rubbish that you can see came out of the sedimenter of one of mine.

 

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flat cap andy

Active Member

• Oct 27, 2013

• #5

Cheers chaps, all those sound a good place to start...I let you know how I get on.

 

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disco300tdidom

New Member

• Oct 27, 2013

• #6

I had the same problem a couple of weeks ago........ turned out to be a pipe that had come off the air inlet pushed it back in hay presto problem solved

 

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Vincemcdonald

Active Member

• Oct 28, 2013

• #7

Change the lift pump. They're only good for 100k miles and they cost around £20. Failing that, it could be a dry joint in your spider doing odd things and closing the stop valve.

 

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rollin danny

Well-Known Member

• Oct 30, 2013

• #8

I think Big Lad is right. If the sedimenter is not cleaned out , a bacterial jelly forms and can float up to the top at full throttle and cut off the fuel supply. When the engine stops the jelly sinks to the bottom and your fuel pipe is flowing again !