I have gotten mixed responses for this question. The Nissan dealership said my clutch is due for replacement soon, which he said he knew just from driving it, though I don't notice anything unordinary. But I plan on replacing it anyway. Now, my gears are REALLY stubborn when I shift sometimes. It isn't smooth at all, mostly in lower gears and when it's the first drive of the day. It's a smooth ride in the car, it's just the gear shifting feels forced. I have heard that is bad synchros, but I've also heard that means you have a bad clutch. My rear diff oil is probably up for a flush as well, would this fix it? What should I do to fix this problem?

 

Begin by giving your trans/differential a drain/fill before you consider other issues! Nissan recommends doing a drain/fill all fluids every 30K miles, was yours ever changed? I suggest you find a qualified independent mechanic, going to the stealership just isn't the best idea!
Gary

 

A bad clutch CAN make shifting difficult fit it's does not disengage fully.

My tranny is a bitch to shift in 1 & 2 until the trans oil warms up.

 

Doesn't MT require a flush?

 

The AT yes, not the MT. A flush will get more of the old oil out than a "drain and fill".

 

What's the difference? Between a flush and a drain and fill? I am really not sure if it's ever been done, I will do this tomorrow and get back to you guys, thanks. Gary, I will be doing it on my own as I have heard it is very similar in simplicity to an oil change.

 

Flush refers to a AT where they drain/fill, twice! Drain and fill is just that with your MT. Yes doing your own is like an oil change or differential fluid change. I would use Nissan fluids in your MT, we've had some inconsistent posts using synthetic...although I feel is should make your trans run cooler and gear changes easier.
Gary

 

Uhh, what? Sometimes I wonder about the knowledge on this site.

A flush is only for autos. They hook high pressure air to your tranny and blow out nearly (90-95%) all of the contaminated fluid from your tranny. The pan is not taken off and the filter is not replaced. It is blown clean with the air.

A drain/fill is literally what it sounds like, but the pan should be dropped and the filter changed.

It is believed that a healthy, low mileage tranny should be flushed, while a higher mileage tranny should not be "disturbed" by the high pressure of a flush which has many times accelerated the degradation of more than one transmission.

A manual tranny only has a drain/fill option.

 

That's why I had the dealer do my Frontier, if the tranny took a dump, I wanted someone to blame it on.