Rover 25 TD VERY low in power

[vtrdaz]

Anyone any ideas?
The car is extremely sluugish , no warning lamps up.
Can't really hear the turbo whizzing when you're going along (used to be quite a prominant noise)
Theres no black smoke like you's expect if the turbo was u/s or  air filter blocked.
Does anybody know if this engine has some sort of boost protection unit whereby if the turbo was u/s , the fuel supply was cut down to prevent engine damage?

Cheers
Darren

[Xtremeteam]

Air flow meter i think if not a burst hose cos AFAIK its the same engine as whats used in some freebies & the above is a common problem

[H]

I'd guess at some sort of leak in the intake after the turbo so its spooling up but not compressing anythign as its leaking out so not really working hard so there would be next to no noise.

H

[Porny]

Split intercooler pipes are very common on these....

If pre T reg - if you feel the need for more power once fixed, my mate can chip them!! - and they go 'very' well :D


IAn

[Rich_P]

If it's not pumping out any smoke from the exhaust, try putting some welly down, and listen for a "PISHHHH" sort of sound.  If you do hear such a thing, it could be a pressure hose with a hole in it.  Remember to check the hose all around, as they can sometimes blow a hole in the most unexpected areas.

Also I suggest that you check the pressure release valve.  If that is stuck open, then I would think that no pressure boost is being built up.

[vtrdaz]

thanks chaps ,
theres no noises at all like air escaping , but if i rev the car in neutral you can here the turbo spin.
It's a w reg if that makes any difference.

Cheers
Darren

[Rich_P]

Well, I know on a petrol car we had which was Turbocharged, the Turbo would not spin any faster than the idle speed when the engine was revved in neutral.

[H]

Well, I know on a petrol car we had which was Turbocharged, the Turbo would not spin any faster than the idle speed when the engine was revved in neutral.

Also wouldnt be under anywhere near the same load as a driven car so you wouldnt hear any air escapes reving in neutral

[Xtremeteam]

is it sluggish all the time or just below 2500/3000rpm??

if its just sluggish below 2 1/2k i rekon air flow meter

[littlepow]

Did the car just go sluggish suddenly with no other symptoms?

Had a similar problem with my old rover. It was a split in the hose between the turbo and intercooler.

[vtrdaz]

chaps ,
There are no noises like air escaping even when the cars hammered.
The car is very sluggish below 2-3 thou rpm but does pick up later in the rev range but is still very gutless.
Don't know how the long the cars been like this - it's the mother in laws and she's just been driving it because she's "used to it now" - DOH.

Thanks for all your help chaps - think we might go for the air flow sensor first.

[vtrdaz]

Chaps ,
Just to let you know  - it was the mass air flow sensor at fault - tis now renewed and power is restored (even tho it cost £135 quid :shock:  :shock:  :shock: )
Cheers
Darren