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disco 300 tdi - Discovery problems - nev666

Son has just bought a 95 disco 300tdi, it has a number of problems.

1/ Heavy black smoke when under load, accelerating or pulling

2/ speedo not working

3/ fuel gauge not working

In the first place none of the dash clocks temp gauge warning lights were working, a change of fuse in no14 cured that problem but left it without speedo or fuel gauge.

I am guessing the smoke is over fuelling, but know nothing about diesels or how to check injectors etc.

Any help would be appreciated

thanks

disco 300 tdi - Discovery problems - Collos25

An oil change and new filter will help with the black smokeif it doesn't then you have a more serious problem.

disco 300 tdi - Discovery problems - nev666

An oil change and new filter will help with the black smokeif it doesn't then you have a more serious problem.

Has had new oil filter and oil change along with air filter and fuel filter. I decided it was either too much fuel or not enough air so changed the lot as a starting point

disco 300 tdi - Discovery problems - Railroad.

Check the Exhaust Gas Recirculation (EGR) valve. A good place to start on these and known to give problems. Try blocking it off and see if the condition improves.

disco 300 tdi - Discovery problems - nev666

Check the Exhaust Gas Recirculation (EGR) valve. A good place to start on these and known to give problems. Try blocking it off and see if the condition improves.

Ok will try that thanks. One thing point me to where it is located please if you can.