2007 FR TDi struggles to start from cold, but will fire straight back up if stopped

[bloody_typical]

Hi guys,

Ok, where to start..... my FR is now the proud owner of a new reconditioned engine and turbo, thanks to the failure of an injector (one which Seat have alreasy replaced), which caused overfuelling to a cylinder, wrecking it, and the chuck of piston head which broke away from the overheating took care of the turbo!

Anyway, car is now running like a dream...... once it starts. If left for more than 4/5 hours, starting up takes more than a couple of seconds of cranking before firing up. I can cut it straight off, and it'll fire up first time. It feels like a fuelling issue, but I'm out of ideas.

List of things done so far to try and fix:
- new fuel pump
- new fuel filter housing (apparently there's some sort of valve in there which had failed)
- new injector seals
- fuel lines all cleaned

Thoughts anyone?

Cheers.

 

[Ben750]

Glow plugs?

 

[bloody_typical]

Glow plugs?

Changed when the engine was......

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[Crafoo]

Is your battery up to scratch?

 

[kazand]

When cranking engine and it doesn't start, does it sound like its struggling? As Crafoo said, could be the battery or check engine earth lead has been refixed

 

[andy550]

When the weather was cold mine used to take a few extra cranks and sound like a bag of spammers for a second or so once it had fired but a restart soonish after and it'd go fine - sound about the same?

Turned out to be the injectors that hadn't been setup right, only found out when I had it de-dpf'ed and Shark said they'd seen it quite a lot. It's because dealers were rushing the injector replacements and not doing it right sometimes.

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[bloody_typical]

No, the starter isn't struggling at all. Andy550, what exactly do you mean re: injectors not being set up right? I ask because the injector for the knackered cylinder was replaced with the bottom of the block....

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[andy550]

The position/depth of the injectors in the head. They're pretty sensitive to misalignment and should be set with a micrometer. The main sign is the amount of smoke on start-up which the DPF soaks up. I had two winters of shite starts with mine until I had it de-DPF'ed and found out about it.

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