2002 Ford Focus smokey

All depends on colour of smoke.Is the car using water or oil ? If not is it running o.k? Temp guage ok? If so , it might just be the usual that comes out of the exhaust under normal conditions until engine reaches working temp.Oil level slightly above max should be ok , it's only when it is well above that you get probs.

hey thank you for your reply!well im not using oil or water and as i can only see the smoke when light level is low and there is a car with its lights on behind me.but i have seen slight plumes in the day and id say it was white.everything else is good engine wise oh and i checked the oil level again and it is about half a litre over aprox could this cause the problem?
claude

Should be ok with oil level and also smoke which is just steam produced by engine .If you tend to do a lot of start / stop town driving it tends to last longer ,whereas a trip down motorway will blast it out the rear .Can't remember the figure ,but every gallon of fuel used produces so much water , nothing to worry about .

hi again.i waondered if anyone can help me.the last couple of times ive gone to my car and before i put the ignition on,the fuel guage needle is on half full and the temp guage is either a quater the way up or is twithching.there is obviously some sort of electrical problem but does anyone know any common faults in this area?