small landy problem!!

[Rich2484]

Compression intermittent would be first sign of failing work when cold as engine heats up metal expands so cylinders expand causing gaps around rings. When engine cools cylinders shrink.

 

It was said it happens after short drive. Then takes time to start again.

[Tom D]

It wouldn't cause it to suddenly stop dead though would it, it would loose power and run badly gradually as it warmed up....

[Dean Lofthouse]

I've just put a meter on my 300tdi solonoid and it's a 12v supply

[treequip]

It wouldn't cause it to suddenly stop dead though would it, it would loose power and run badly gradually as it warmed up....

 

It would also breathing quite noticeably.

[Dean Lofthouse]

I would say those symptoms are fuel vacuuming, the fuel is being used faster than it can be supplied.

That cause can be a number of things, fuel filter blocked, fuel solonoid partially opening, fuel line flattened or collapsed on the inner lining etc etc. start at the tank and work forward

[Crazy Cutter]

Mine did similar. It turned out to be a faulty ignition switch.

[Matthew Storrs]

I doubt its compression, firstly it doesn't lose a drop of oil or breathe heavy, secondly one of the times it restarted almost instantly which doesn't tye in with the cylinders cooling, Faulty ignition could be a possibility but i suppose il only be able to test that when it cuts out and it doesn't usually leave me enough time before it restarts to test it. Im going to change the filter see if that helps and check the fuel lines

[Dean Lofthouse]

Just read back through:

 

This could be anything electrical or fuel,more info is needed.

 

A diesel wouldn't necessarily splutter when starting back up if it was fuel vacuum either.

 

The easy way to tell whether it is an electrical fault is to first check whether or not the supply to the fuel solenoid is 12v . Switch the ignition on and disconnect the lead and check with a meter.

 

If it is put a connect straight to the solenoid from the battery and start the car, but leave the meter connected to the original lead to the solenoid and keep an eye on the meter when the engine dies again, if the voltage is still there then it's not electrical.

 

That then just leave the solenoid or a fuel problem

[Matthew Storrs]

Just read back through:

 

This could be anything electrical or fuel,more info is needed.

 

A diesel wouldn't necessarily splutter when starting back up if it was fuel vacuum either.

 

The easy way to tell whether it is an electrical fault is to first check whether or not the supply to the fuel solenoid is 12v . Switch the ignition on and disconnect the lead and check with a meter.

 

If it is put a connect straight to the solenoid from the battery and start the car, but leave the meter connected to the original lead to the solenoid and keep an eye on the meter when the engine dies again, if the voltage is still there then it's not electrical.

 

That then just leave the solenoid or a fuel problem

 

OK, if I do as you say and it doesn't cut out anymore does that suggest there was a faulty connection between the ignition and fuel solenoid.

(Excuse my electrical/mechanical ignorance:001_smile:)

[Dean Lofthouse]

OK, if I do as you say and it doesn't cut out anymore does that suggest there was a faulty connection between the ignition and fuel solenoid.

(Excuse my electrical/mechanical ignorance:001_smile:)

 

Yes it does