Post by
Mr. Music »
https://forums.nicoclub.com/mr-music-u82550.html
Thu Apr 23, 2009 6:03 am
I've got some annoyances with my Altima as well. The small stuff is a rattle coming from the passenger door panel, and the passenger seat belt buckle rattles against the b-pillar when nobody is using the seat belt. A smack to the door panel shuts it up for a few days, and I just put the seat belt over the seat bolster so its away from any plastic it could rattle against. The major annoyances are my air conditioning compressor and CVT transmission... **CLIFFS NOTES AT END OF POST**
My a/c compressor makes a relatively loud clicking/knocking noise when it's on. Nissan knows this is an issue with the 4th gen. Altima sedans and coupes. The compressor was replaced on 1/2/09; the sad part is that the new one makes just as much noise as the old one.
At 30-35 mph (steady, around 1,200 rpm), the car vibrates as if you were driving on an uneven/wavy road surface. However, this doesn't happen all of the time. It only happens when my car is in drive; if I switch it over to manual mode, the shaking stops; switch it back to drive, and it starts shaking again. I've test driven the car with a mechanic and he was able to diagnose this problem. Nissan's engineer said that this is normal on the four cylinder with the CVT, and calls it a "Booming Sensation". His recommended fix was to change my driving habits. What kind of bull**** is that? A lot of my driving is through areas where the speed limit is 30 or 35 mph. Nissan isn't going to pay for speeding tickets.
After paying a different dealership a visit, I got answers. For the a/c compressor, it's a design flaw in the compressor that causes fluid to back up, and a valve flaps open and shut making the noise. Nissan has no plans for a new compressor design. As for the transmission, at about 35 mph, the transmission solenoids are almost at the point of sending a shift command. The CVT's gearing is split in banks, first to third gear and fourth to sixth gear. Under normal driving conditions, the transmission wants to shift from its equivalent of third gear to fourth gear at around 35mph, but it basically doesn't know whether to shift or not; resulting in the car jerking back and forth as the pulleys fluctuate. Nissan considers this to pose no reliability, longevity or safety issues.
I'm also disappointed with Nissan's customer support line, 1-800-NISSAN-1. They were unable to provide any kind of help in trying to sort out my a/c compressor and transmission issues. Also, the new management at the nearest dealership sucks. About a month ago, I went in for my second-to-last free oil change, and met the new general manager and his boss. Of course, I took my shot at talking to somebody a little higher-up, but they haven't done what they said they would - I'm still waiting for their phone call. I've called just about every other day, and the general manager has yet to return my call.
CLIFFS NOTESMy 2008 Altima is a POS.