Defender 300tdi won’t go past 110kmh

[synthium]

Hi everyone,
My 300tdi 130 wont go past 110kmh unless I’m going down a hill. It used to get at least 130kmh.

5th gear feels like it settles on 2500rpm and the pedal is to the floor- the engine feels like it’s not working hard but I can’t get more from it. Other gears I can rev right up but 4th will max at 110kmh.
Temperatures stay in normal range.
Fuel consumption has dropped too.
I fitted an allisport updated intercooler and an egr meter about 6months a go but I am not sure when this issue started.

Happy for any ideas.
Thanks
JP

[micksta1973]

I started using fuel additives from Cost Effective Maintenance years ago. Half way through the first tank I was pulling 10-12 kph faster in every gear. Not cheap, and I have no affiliation with them, but wow did it make a difference. I'd recommend trying it. Picked me up from 110 kph tops to 130 easily.

[FisherX]

I'd say you have a turbo boost leak.

Do you have anyway to look at your turbo boost pressure?

I'd be thinking you have blown a hose off from one of the hoses to the intercooler. Check all the hose clamps and fittings from the turbo to the intake.

[incisor]

yep sounds like a collapsed or de-laminating turbo hose

the C.E.M additive micksta1973 mentioned makes a difference as well if your not regularly pulling heavy loads...

have a chat to Brid on here...

[Didge]

Wow! is that a real 110kmh or just on the speedo cos I know my speedo at 100kmh (on the phone gps) is reading 113kmh.
And if I were to get to 110 it'd be a rather scary ride. But you've got me thinking about looking at those hoses as well - thanks :)

[synthium]

Hi everyone,
I will check the turbo hose. I can hear the turbo whistling once i hit third so i assumed it was ok.
The hoses were relatively new - but maybe one has come off somewhere. In terms of boost pressure - i do have a gauge (but its not fitted along with many things in my pile of stuff to add on!).
I do actually have some additive in the garage i can put though the system but I think the drop in performance is really significant.
Anything else i should be looking for?

[micksta1973]

Get a spray bottle with water and dish washing liquid and spray it on hoses with motor running. Leaks will cause bubbles.

[synthium]

Hi everyone- it is the hose going into the turbo. Thank you all for your help!!

[big harold]

yep sounds like a collapsed or de-laminating turbo hose

the C.E.M additive micksta1973 mentioned makes a difference as well if your not regularly pulling heavy loads...

have a chat to Brid on here...
Whats the problem pulling heavy loads using C.E.M ??
PM if you like
Mark

[incisor]

Whats the problem pulling heavy loads using C.E.M ??
PM if you like
Mark

300tdi's glaze the bore if you don't use them to pull heavy loads on a regular basis

using CEM keeps the glaze away and they run much better...

in my experience.