My toyota Lucida diesel engine runs good but ocasionally gives a pop, pop, pop,sound with white then black smoke and looses power .

Diesel engines smoke when under a heavy load. Unlike a gas engines, a diesel engine uses fuel that is more like an oil.Smoking is a good indication the fuel is not completly burning because of loaded engine spee. White smoke indicates the fuel is not ignitingefficiently. Truck, boats, tanks abd anything else using diesel fuel will smoke when it gets more fuel than it can use.. Easing up on the throttle will lessen the smoke but not eliminate.. Of coarse if the demand is lessened by applying less loadyhe fuel consumption drops.Not to worry as long as the smoke doesn't attract the EPA.

diesel engine lose power could have restricted air filter and fuel filter.if you see black smoke injector nozzles worn need cleaning.if see white smoke injection pump out of time.

hi had the same problem with my car turned out to be the electronic mapping for the diesel injectors. quick trip to the dealer and they reset it. dont know what year your toyota was made but new diesels are a pain to do your self

Hi
Is it a diesel or petrol motor? If it is Diesel or petrol then black smoke is a sign that it is using excessive fuel so it could be a blocked air filter or fuel filter. if it is a diesel motor. So check these 2 items first.
The low oil level light is on because the engine needs the oil topped up, if you fill it to the correct level this will make the oil level light switch off. Hope this helps, let me know how you get on.

ok we really need more info. what color smoke is veh overheating. One thing for sure if veh is smoking you are going to have a clogged converter take a front o2 sensor out and see if the engine will rev. if so must fix smoking problem it will be fuel or oil if blueish color or if it is white could be head gasket.let me know a i can help you

did you do a maintenance routine check? like air filter and fuel filter...lastly, do an engine compression

put a 12 volt test meter on the battery with the engine off and get the reading.
then start the engine and retest the volts it should go up a volt ot two.
if the test readings are the same then the alternator is bad.
thank you
jm

Is the smoke black-ish ?
It could be the fuel filters are dirty..

The oil cap might have the recomended oil on the top.. Or in your manuel..

To be sure - call you local discount auto parts store - and they will tell you..

Hope this helps !!
Please rate me good ;o)

sounds like an ex reps car too me ...high mileage and well thrashed