This evidence, coupled with evidence running from tank with no air, and changing the tandem pump and seal, would say to me yes it's the injectors.
It has to be! Surely.
To my knowledge these injectors have not been out at all, bear in mind the car has done 175,000 miles though!For a self proclaimed "diy mechanic" you sure have covered all bases!
At this stage the only thing left that we all can think of is injectors, but this isn't a known issue at least not to myself. Have the injectors ever been out before and perhaps reused old seals??
To my knowledge these injectors have not been out at all, bear in mind the car has done 175,000 miles though!
At least one person on here has said that they had the exact same starting symptoms and it turned out to be the injector seals causing the problem, I will have to look back and try and see who it was..
Yes indeedy, have used two of these:Did you use the correct metal gasket with the two tracts of blue silicone. The ones without do leak.
I've been trying to find anyone who has mentioned injector seals as contributing to this issue..
A2Steve was one person that mentioned them as a possible cause, these are two others..
1.4 Tdi Struggling to start..
I would suggest getting the car scanned with VCDS instead of your code reader. It might show up the fault in the form of a code that only VCDS can find.www.a2oc.net
Poor starting
Hello all I have a 2001 1.4 Tdi which sometimes starts first turn and sometimes takes ages cranking the starter before the engine finaly comes into life. Having assumed that the problem was with the glow plugs, I ordered a new set from AVS Car parts and have just replaced the old ones with...www.a2oc.net
Nothing very definitive..
Hi Robin, did you sort the injectors with the engine in the car? I’m guessing it’s doable, but probably quite awkward?@rkeil I believe also commented the same solution a few pages ago in this thread?
I fitted refurbished & tested injectors to my project car and it made a huge difference to the smoothness and economy of the car, as well as eliminating occasional revving on startup that was attributed to worn injectors leaving a bolus of fuel in a cylinder. It had already had a leaking fuel filter canister and tandem pump replacement by this stage.
Okay good to know, I will have a look and see how that trumpet comes off. CheersThe mechanic did. The cabin air intake trumpet is best taken off to give proper access over the top of the rocker cover (he was also replacing EGR and turbo at same time so it was all done in one go) - but both the fact the injectors had been renovated and tested, and he also reset the rockers according to the workshop manual meant it was running like a sewing machine afterwards.
From memory it is easiest if you remove the rubber seal at the back of the engine bay and then release the plastic scuttle panel (does this require the wiper coming off?) - this then gives you access to two fixings that secure the trumpet to the area of bodyshell below the scuttle panel (open to correction!).Okay good to know, I will have a look and see how that trumpet comes off. Cheers
Edit.Hi Robin, did you sort the injectors with the engine in the car? I’m guessing it’s doable, but probably quite awkward?
Wow, thanks for that!From memory it is easiest if you remove the rubber seal at the back of the engine bay and then release the plastic scuttle panel (does this require the wiper coming off?) - this then gives you access to two fixings that secure the trumpet to the area of bodyshell below the scuttle panel (open to correction!).
Here we go. From the first few pages of the workshop manual section on working on camshafts and injectors etc before removing the rocker cover : (bear in mind it is left hand drive so there is an intercooler return pipe and a couple of other things obviously in the wrong place for ours but concept is the same).
Once you get to removing the rocker cover there is a specific order and torque to remove (and ultimately refit) the rocker cover bolts to mitigate risk of warping - @audifan Graham has posted this info recently here in a different thread but should be easy to find.
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