BLACK SMOKE COMING OUT OF THE EXHAUST AND NO POWER WHEN I PUT ME FOOT DOWN, WHAT IS THE PROBLEM AND HOW MUCH WOULD IT COST? THANKS MARK

On a newer vehicle with fuel injection, black exhaust smoke can be caused by one or more leaky fuel injectors, too much fuel pressure (sticking fuel pressure regulator), a faulty MAF sensor or Oxygen sensor, or a engine computer fault. with diesel engines,black smoke in the exhaust can occur during hard acceleration.

The first things you should check are your air-filter and other intake components like sensors, fuel injectors and the fuel-pressure regulator. Other reasons could be a clogged fuel return line.

Sounds like a plugged catalytic converter or a broken baffle in the muffler. Have a shop do a back pressure test on your exhaust.

Black smoke is a sign of engine overload, a restricted air supply, or a malfunctioning injector. For some reason, excess unburned fuel is being blown out of the exhaust.

White smoke is coolant and sounds like a cracked head or bad head gasket.

THE PROBLEM IS THE ENGINE REQUIRES OVERHAULING. THE FUEL CONSUMPTION WILL BE VERY HIGH AND LOSS OF POWER AS WELL . TIME TO SEE A MECHANIC.
REGARDS.
PLZ. DON'T FORGET TO RATE

if there is also black smoke coming out the exhaust - and the problem is intermittent - then it's the EGR valve - it sticks open - will need replacing.... Happened to mine this morning and this is what the Jaguar Assistance guy said. Mine is a 2006 2 litre X-type.

If the smoke is blue, it is burning oil. If it is black or dark grey it is running way too rich, like your choke is stuck on. That would also explaing the jerky acceleration and poor response. Your fuel consumption will also skyrocket.

check
ingectors maybe one not working
spark plug
air flow mass
feul sensor

Have you changed the crancase breather situated at the rear of the engine by the air filter, cost is about £30 from Landrover, should be changed every 12000 miles, often lasts 60000 miles and then it shows a problem. If not changed the crancase will pressurise and you will get oil coming out of the engine all over the place and clouds of soke from exhaust.

This is almost certainly a split hose - mine was the large hose coming out of the bottom of the EGR valve.

Speaking to a parts guy at my local Jaguar dealer, he said that the new part is uprated as Jaguar are aware that this is a problem.

The split allows more air in and results in the ECU changing the mixture and over fuelling - Black smoke is an indication of un-burnt Diesel. As well as the black smoke you may also notice a whistle/whine or sucking noise when you accelerate and a lack of power / lumpiness at around 2000rpm.

Hope that helps!

Graham