dudleydoright wrote:
Hi, my 2004 kj crd 2.5 is still smoking quite badly from cold. it produces black smoke in a cloud when i rev it when cold or when i first pull away. it also does this when the engine is warm after its been in slow traffic and then i accelerate up to normal speed.
when i rev the engine whilst warming up it puffs a cloud of black smoke out and then makes a click sound on the over run,
also the fuel consumption varies about 4 mpg on the same run and under the same driving conditions according to the fuel computer.
any ideas would be greatly appreciated, thanks.
when i rev the engine whilst warming up it puffs a cloud of black smoke out and then makes a click sound on the over run,
also the fuel consumption varies about 4 mpg on the same run and under the same driving conditions according to the fuel computer.
any ideas would be greatly appreciated, thanks.
You will have the fixed-vane turbo that uses a waste-gate....this may be sticking.
Or the EGR valve is possibly stuck open...you would have to remove it to see.
Once you have cleaned the EGR it is best to disable it. On the 2.5 CRD this is easily done by disabling the vacuum solenoid.
This is the black plastic contraption sitting next to the main air filter...has a small paper air filter dangling down from it, two small pipes connected on top and a plug with two wires plug in the side.
Remove the small outer rubber pipe from this solenoid and insert a small self-tapping screw into the plastic housing then replace the pipe over the screw head. This will give you better performance and stop abrasive soot being pumped into the intake manifold.
