smoke coming from back of engine on 1997 Nissan Maxima

the car drives fine but it smokes at the rear of the motor what could this be

Asked by for the 1997 Nissan Maxima
I had a similar problem and found that the power steering return line (low pressure hose) leaked on to the exhaust line. The rear valve cover gasket leak will certainly cause this too.
Where would this be located hose that is?
1 more answer
Sounds like one of your valve cover gaskets are leaking engine oil onto your exhaust and smoking.