Timing Tensioner problems of the 2004 Nissan Quest

Vehicle coming off turnpike entering onto the interstate would not accelerate past 45 mph onto the interstate almost ran over by vehicles when I was coming off the ramp. Very dangerous. Managed to get van to a safe place where we had it towed to our home. We had our mechanic look at it and he diagnosed it as the timing chain tensioners needed replacing and it had jumped time. He would not touch it since this is a known problem and there is a technical service bulletin issued for this year van concerning the tensioners. Had it then towed to Nissan and they quoted 1700 to fix the mechanic even stated that it is a huge problem and he is seeing at least 1 a week with this very same issue. But Nissan wont issue a recall. Is it going to take some fatalities for them to wake up and realize this is serious. After work performed to van they called and said it is still misfiring that they found valve cover leaking oil on spark plugs another 600 dollars to fix this. I just replaced spark plugs in 2010. Also replaced brakes 3 times and tires 2 times now. Alternator also replaced. I bought this van hoping it would be a safe and reliable van for my family to enjoy for a long time it has low miles and I hate to get rid of it. I am at the point though that I keep putting money into it thinking we will be able to be safe and next thing you know something else is wrong. I feel Nissan should recall all models affected and fix this plastic tensioner on the metal chain, they know better this is a way for them to become richer off the people that trusted them. Never will my family or friends buy Nissan again> since this has happened I have talked with many people that own or have owned a Quest and they were not happy either. Please start a investigation before we lose a life.

There is a loud, annoying and dangerous rattling sound coming from the motor. Based on what seems like hundreds of thousands of complaints and many opinions from very experienced mechanics, it is the timing chain - the whole thing- from the chain, tensioners and everything associated with the entire timing chain mechanism. This is absurdly annoying, extremely dangerous and outrageously labor intensive and expensive to fix. I, like so many others out there, put my family in this vehicle on a daily basis and have to wonder just how safe this thing is. What happens if the chain breaks? what happens if it breaks while on a major highway? I just had my family to florida this summer - can't imagine that scenario. Obviously, this problem exists absolutely everywhere with this vehicle.

Loud rattling in my engine when I start my van and when I drive through town. Very embarressing! mechanic thinks it is the timing chain tensioners in the engine that is going to cost over $3,500. I only have 94,000 miles on the van so it should not be doing this!.

Timing chain tensioner broke causing timing chain to rattle loudly. Nissan said the repair would be about $2,400. 00. Apparently this is a very common problem with the Nissan 3. 5 engine and should be subject to a recall.