2005 won't move when I shift, still running and idling normal

[aaronrose]

Any idea on why my 2005 murano se won't change gears. Was reversing out of my garage and got in street and stopped and put it in drive and nothing happened. No gear worked and in N I could not roll it front or backward. No codes. No check engine light. No cvt light no nothing. The shifter knob would move and the gear light on dash would change matching what gear I was trying to put it in. Checked shifter cable, was great at both ends and moving along with the knob when I shifted. Could it be the stepper motor. Once again no code or any light on dash. Car has 162 000 miles

[VStar650CL]

If it won't restart, could be a broken flywheel. If it will, sounds like a broken CVT belt. IIRC the '09A and B trannies had a planetary and reverse brake for the R position, so they won't move in R when the belt is broken like the '10 series trannies with direct drive in R. If it's had poor or no maintenance, you're right around the mileage where they usually blow.

[aaronrose]

I can shut it off and restart it and it still runs normal. When my buddy and I were messing with the shift cable where it attaches at the transmission and checking on that, I put it in N and it could roll and then I put it in drive and was able to drive it from street back into garage. It did make a clunk noise as I rolled up driveway and into garage. Still no codes or lights.

[VStar650CL]

If it moved at all then you might have low line pressure from a front pump failure, a torque converter blowout, or a line pressure solenoid stuck shut. Especially on early ones, most of the DTC's the TCM will generate are inferred from wrong pulley speeds while the transmission is engaged. So they don't always throw anything when there's a complete failure that makes it undrivable.

[aaronrose]

Well I started it today and it went into reverse and was still idling normal and everything, and no codes, but that was all I did. I was afraid to drive it, and I don't have the money to take it to shop. So now I have to figure out my next step without knowing exactly what it is. I guess i could drain fluid and drop pan on transmission and see if filter is clogged or metal shavings anywhere and test stepper selenoid. Can't really think of anything else

[aaronrose]

So I looked back into the records from the previous owner and they did transmission fluid change 20,000 miles ago but they did not use cvt ns2 fluid. It just says global synthetic transmission fluid. Could this make my car not shift. I'm going to change the fluid in a day or two and see if that solved my problem

[VStar650CL]

The wrong fluid is a killer. There are lots of good aftermarket fluids out there, but if you can't determine the actual brand and type, it's possible that's the issue. It's also possible the previous owners were treating the symptoms of a transmission they already knew was dying, hoping to coax some more miles out of it and then unload it. That's probably an unanswerable question.

[aaronrose]

My brother bought it from the original owner and someone he worked with and I bought it from him and I have not had a single problem for almost 3 years until now. The invoice said global synthetic ATF and that's all it says and I'm pretty sure they had no idea about a cvt. They replaced a cat converter. Couple rotors,o2 sensor, valve covers gasket set and covers, intake manifold gaskets and 120 000 scheduled maintenance. This was when he bought it and had it looked over. So basically in hopes that a fluid change and right fluid might get me some more time before I have to get rid of it. I need to find someone that's wants to buy it for parts if this doesn't fix it lol

[aaronrose]

Well I dropped the pan last night and found some metal pieces, about 3 to be exact the were metallic about 1/2 long by 3mm wide. The fluid was almost coffee color so things are not looking good. The filter looked ok. So I cleaned the pan and magnets and am going to see if stepper motor works still and then I will put back together and pray for a miracle

[VStar650CL]

Sounds like chunks of belt, if it is then play taps.

[aaronrose]

Put it all back together and filled it up and warmed it up and checked transmission fluid. It was at perfect level, it goes into every gear so i reversed out of driveway and it stays in gear but I still get a bad thunking sound like your going over a speed bump way to fast. Damn I like this car to

[VStar650CL]

Thunks like that are usually in the final drive and not the transmission per se, so maybe that metal was pieces of gear teeth and not pieces of belt. That still doesn't bode well, it's a dying transmission either way.