Bad spark plugs and leads can commonly make the engine feel like its 'hesitating' or skipping a beat, often worsening in the higher rev range.
However it is not the cause of white smoke. White smoke is typically associated with coolant getting into the combustion chamber. The most common cause of this is a cracked head gasket, which you will need to replace in order to rectify the white smoke.
burning lots of fuel to get it going, its an old car.
No. A bad head gasket would cause water to come out the tailpipe. You will see white smoke. Leaky rings would cause oil to come out the tailpipe. You will see blue smoke.
Blown head gasket. Or a missfire cause by a bag ignition coil, fouled plugs, too little fuel pressure, timing is off ect.
Try changing the spark plugs
MaybeMaybe
they have elected a pope? in cold weather it is normal to see white smoke coming out of your tailpipe. the one you have to worry about is the black or the blue smoke
Yes
Head gasket or cracked head
It could, depending on the cause of the misfire.
A bad PCV can cause the engine to be pressurized internally, thus forcing oil out of important seals. This can cause a white/blue smoke from your tailpipe when the oil is then burned. A clogged PCV will also cause the engine to loop while idling, and possibly hesitate under acceleration.
black is excess fuel
White smoke is a symptom of a blown head gasket.