I have a 2008 Nissan Maxima with 116k. It started About a month ago it was having trouble starting in the mornings. Took it to the shop they replaced the spark plugs it ran great for a few days than I ran a few errands and I went in somewhere and came out 5 min later it would not crank. It would start rough and shake the whole car and die. Had to get it towed that evening: a few hours later it cranked up fine. I had a friend clean the throttle body. It started working again great for over a wk. than the same thing. Cranked tons were low and it died than it left me stranded again. Took it to the shop he reprogrammed the throttle due to the rpm were all over the place. That was over a wk ago. It was running fine and today it would start and run rough and die. I need advice. any ideas. Please help. One minute it will be fine and the next it won't start and running weird. Once I get it started it seems to run fine. The other thing u noticed today was when I hit the gas pedal to get it going I heard a water noise on the passenger side I never noticed that before.

 

FYI, you are in the 8th Gen forum and you should repost this in the 6th Gen forum.

Unfortunately, it could be a lot of different things. On my 6th Gen I had all kinds of problems at around 170k... replacing sensors left and right trying to figure it out. It ended up being a leaky hose. YMMV

 

might me a mass air flow sensor/idle air controller .. also fuel filter or pcv valve

 

I see you posted in the 6th gen forum.