Hi experts.
I have 2004 maxima 5 speed and transmission already rebuilt.
When I shift the gear from P ->R . it bang and I could feel it. Its not smooth.
Can some one please guide me what could be wrong.

 

How are your mounts? Check them. Or is the SES light on?

 

Took it to shop.
Machine said transmission mount is good but engine mounts needs to be replaced...
Is it going to solve this gear P->R bang (slam) .

 

Mine kind of slams sometimes, I am replacing the mounts next weekend. My front lower is shot.

What can happen, the engine and trans will rock and it feels like it slams.

I would also suggest the insert, mine looks very new (just bought my car a month ago) and it is bad.

 

I took my car to 2bdifferent mechanic and they said mounts are good. Shifting gear is issue from tranny.
Is it a valve body issue ?

 

it could be the valve body, is the fluid clean and full?

 

yes fluid is full and clean.
can anyone suggest what else could be the problem ?
is it haul trany work needs to be done or just replacing valve body could fix this issue ?

 

i had put full bottle of Trans Tune and drove about 2 weeks. it helps little but bang didnt go away.
replaced tranny fluid with Metric K recommanded by Nissan and added Lucas.
i feel the difference alot. it bang but its not loud anymore. very minor now.

 

I replaced cam shaft sensors and car shifting smooth so far

 

Check for mounts, make sure no codes. How long ago was the rebuilt ? If they install a VBX valve body it could be no good. Most of the Maxima 5sp auto, harsh shifts is valve body related.

 

It was rebuilt 2 years ago.
Mounts are good....
I been having this issue after 1 year warranty was expired.
Since its been banging for 1 year now. Do I need to rebuilt the tranny again ?

 

If mounts are good and no codes than it probably the transmission, if they put a rebuilt valve body in your trans it may not last long, every time i rebuild these kind of transmission i always buy a brand new VB from Nissan even though it cost more but they sure work on the 1st try and last longer than a year or 2. Keep in mind that this transmission is not a bad tranny but the VB are very high failure rate.