Rattle & Hard startup

White smode could indicate coolant or brake fluid or possibly transmission fluid getting into the combustion chambers. Yes, rattling and hard starting could be due to timing chain problems. Here's a directory link for you: http://repairpal.com/nissan-repair-in-houston-texas

what make a car start run next morning it want start act as though its out of gas r not getting fire from the cord pack no smoke just hard to start r will not until it want to