Hello,

I am a Disco V8 3.9 1997 user from Kazakhstan.... I like my car but my problem with Disco is the fuel consumption.... About 45-50 lt/100 km /city.......and the black smoke....
What can be the reason? What should i do or which parts should be controlled or changed?

Thanks for your help....

 

how many Km on the vehicle?

 

Black smoke means running rich, could be plugs, wires, dirty fuel injectors. How long has it been since it was tuned?

 

wow, that's like 3-4 m.p.g army tanks get better than that!!!!

 

Clogged air filter.

 

a month ago i changed the plugs but not the wires...
i have done nothing about the injectors....

The car is 170.000 km.....

 

so at 102,000 miles. i would give the fuel system a good cleaning. dump a couple bottles of seafoam or a good cleaner into the fuel tank and go from there.

 

Check the air filter, replace the plug wires too.

 

You may want to check thos O2 sensors also.