300 TDi Disco Screaming under acceleration, smoking and loss of power at about 75mph

Hi,

Need some advise I have a 300tdi auto disco, and recently removed the egr valve. Once I'd done that however I found that if I accelerated too hard or if I stayed at a constant speed of say 75-80mph on the motorway the engine would cough and I'd get quite a lot of smoke out of the back and I would lose power untill I either took my foot of the accelerator or switched off and back on again then it would be fine for another mile or so and then do it again.
I decided that it might be something I'd done wrong with the egr so I reversed everything I'd done and now I've still got the smoking on the motorway and loss of power but I've also now got a very high pitched screaming when accelerating hard.
Anybody got any ideas as I'm pretty much at my witts end and about ready to chop the thing in

Thanks
Dean

Dean_Acky said:

Hi,

I've also now got a very high pitched screaming when accelerating hard.


Thanks
Dean

Click to expand...

I had this problem, i'd forgotten that i'd tied the dog to the rear bumper.

lol... I wish it was as simple as that...

Have you checked the turbo hoses for any split's or de-lamination inside?

No but that has just been suggested to me just now. Was about to go out and have a look when the heavens opened so I'll be off out to do that as soon as it stops bucketing down.. also had it suggested that it may be the turbo bearing or missing impeller fins.. so I'll be checking that too. I don't remember seeing any obvious signs of damage to the hoses.. but then I wasn't looking that hard.

Aye if hose's are fine definitely check the turbo out, other than that it might be a fuelling issue?

Sounds like turbo bearings mate.. Mines suffering the same thing.

Check to see the wastegate linkage on the turbo (which is a pain on a D1 as its on the bottom) is "free" to move through its full range, give it a "working" and some lubrication at all the pivot points, especially the main on into the turbo, that may well stop your scream