Marie Reyes 
2007 Nissan Quest Minivan 3.5 SL 4dr Minivan (3.5L 6cyl 5A)
Beware of Nissan Corp issued TSB's
 I never thought I would be a minivan owner but I saw the style of the quest..I fell in love with it.  I read reviews vs other minivans and all seemed great on the Quest. Shortly after my warranty expired I started to notice a whining noise coming from the engine.  When I took it into the dealership they kept it over night,charged me $100 to diagnose it.  I was floored to find out that the estimate to replace my timing chain both primary and secondary along with the guides was going to cost $3,000!! I took it to for another opinion and at that time I was informed that Nissan KNEW this was a problem for years and has a Technical Service Bulletin out. I had never even heard about a TSB!?? 