Hiya all,

Friend of mine has a 2.8 turbo intercooled diesel Shogun. It has a
performance problem.
Left in auto, it changes gear about 2500rpm and is a real slug, does not
kick down under hard (?) acceleration.
Using the 'box manually provides a bit more speed but not much. The car has
all on keeping up with normal traffic.

We can hear the turbo spinning up and there are no obvious air leaks. The
thing does kick out a bit of black smoke when on full throttle.
The car starts first time, hot or cold and doesn't make any odd noises.

Anybody got any pointers as to what to check first??

Thanks in advance for any help here.

m