Crazy throttle problems

[Poodle]

Well, not throttle since diesels don't have a throttle, but you know what I mean. Also, possibly not an XUD, not sure what the proper name is for a 1.5nad, but it's not a petrol or an di electrical nightmare, so thought i'd put it in here. Basically my 106 has issues with working out what power I want when I keep the accelerator partially depressed - it will surge and hesitate at random, sometimes changes the idle speed, minor flat spots at WOT. Anyway, video probably explains better:



Further info:
Possibly, but not necessarily, related problems - starts on 2/3 cylinders when cold and has cut out once or twice shortly after starting for the first time of a day, problem is also much worse when it's very cold or has been sat for a long time. Thoughts on possible causes were glow plugs, sticky injectors or air's getting into the fuel somewhere. Maybe a combination of a couple, or even all three, who knows... Well, hopefully one of you, so...

[Dan!]

FYI its a TUD My guess would be air getting in tbh, explains the bad starting, flat spots etc.

[Eeyore]

yep and there was a rally version used in the pro championship which was a TU Racing D

[Poodle]

Yeah, air getting in was my main thought, any idea of most likely culprits? Fuel grenade, injectors, tank pick-up?

Tbh I like it when it surges, briefly feels like it's got good power lol. Can't imagine this thing racing anywhere, not for lack of trying though

[Poodle]

No guesses then, bugger. It's started cutting out now, is getting worse by the day. Just haven't got time to fix it with everything else going on. :S

[Dum-Dum]

Air in fuel or a clogged fuel filter

[cully]

my 106 NAD sounded the same
the reason i found was
pick up in the tank was blocked also the filter was blocked on a second time .was due to running high fat content veg oil

[Connor]

@ your commentary "wtf is all that about"

[Poodle]

Might just take the filter out then, sod it. Once the HDi is back the nad-wagon will be getting boosted, ragged and killed, all in the space of a week, so it's not like it needs a new filter.

[Blaze tub tom]

Spray brake cleaner or wd 40 over injectors and anywhere sort of fuel related wen on idle if it has a air leak shell pick up on revs then uv found ur leak..

[Poodle]

Ah good tip, will try that tomorrow, cheers.

Will have a look at the filter, pick up and grenade too and see what i find.

[andywhy]

Mine has a similar issue, but only after I've been full throttle such as at a junction. In 5th gear flat out you don't notice it but from 2nd to 3rd you definitely get some form of surging for about 5 seconds. The throttle feels a lot more sensitive for that period, it's really strange. I'm going to change the fuel filter this weekend if I get chance as I had her cut out randomly on the motorway for 5 seconds yesterday.