May be possible the timing is too far retarded. If this is the case, there will not be complete combustion and you will get smoke. Try to advance it a couple of degrees.
Usually the spark plugs or the timing.
Timing may be the issue or an idle adjustment
Why , they do not go bad. What is wrong with car?
Check the crankshaft sensor. Also check the timing and timing belt. The backfiring indicates that the engine is firing at the wrong time.
The ignition timing is out
If there isn't anything wrong with it leave it alone.
You would have to call 911!Another AnswerSounds like the timing is off or plug wires in the wrong order.
timing is wrong, coolant leak, bad radiator or thermostat, head gasket....
no spark our timing belt snap our jumped timing
no the car will not start timing has to be set again
Idle needs to be re-learned properly
If your vehical is a tracker and you just put the timing chains in, it was done wrong