"when pressing the accelerator, its all sound and black smoke ,
no power !"
- black smoke is due to dirty or clog injectors
- all sound n no power is probably due to power loss in
automatic transmission
Black smoke is the diesel wasted, the piston and piston rings are
worn against the liners, so instead of getting the power of a full
combustion that push the piston down to crank the crankshaft, it
only get 3/4 of the power, making the engine less power, the other
1/3 diesel in smoke escape thru the worn btw the ring and
liners into the exhaust manifold out into the catalytic converter
(just before the rear exhaust pipe, it add as a filter of exhaust
air) before going out the back of your car with or without a
muffer.
As too much wasted diesel become smoke, your catalytic converter
can be damage, once it is damaged, you smell foul diesel smell just
like some car and taxis having it.
So the more you find it less power, the more diesel you step on
leading to more usage, starting in moving off takes up the most
fuel, cruising take the least due to crankshaft in momentum, once
stop and move again, another 10 cents gone, so if you are start in
jam it can actually takes up more of your fuel, and with a worn out
engine, you tend to see black smoke of unuse diesel when moving
off.
In long run, the engine get hotter and hotter due to unuse fuel
heating up the engine instead of pushing the piston, this will
further burnt gasket and seals and also need more cooling water,
when seal or gasket burnt, you can also smell it, and that is where
some car get smoke all over and hv to pull over.
