hey guys. i bought a 6MT 2004 g35 about 4 or 5 months ago and i have had some problems when shifting from first to second. it dosent happen all the time, only when i redline first and slam it into second. just as the shifter falls in to the place for second i can hear a grinding sound like the clutch isnt in all the way or something, but the clutch is dffinatly pressed in all the way. it just feels like the gears are barely grinding for a second and it scares me. lol. i was wondering if somone could help me out in the diagnosis of this porblem.

 

When was the last time you changed your trans fluids? I've often felt it be very notchy and yeah like a mini grind I can't explain it. Helped when I flushed it and refilled.

 

I got a 2004 6MT and I have same problem with 4-5 gear. Only does it when I shift fast and at high rpms. I will be doing trans flush in a week hope it stops.

 

same problem from my 03 ... from 2nd to 3rd.. pressing the clutch fully but just grinds often when i first start the car.. after a while i throw it in to 3rd very slowly and let the gears fall into place.. any suggestions.. did the flush help.. worth doing??

 

before changing fluids you should take it to the dealer if you are still under warranty...my 3rd gear was also grinding
The syncro were out of sync stealership replaced my tranny and clutch disc under warranty

 

its an 03 so i dont have warranty under it... any other suggestions

 

our transmission is real picky when it comes to certain brand of fluids. Depending on if you get hot and cold climates, amsoil or OEM seems suitable for all-around climates.

I'm not sure what was in mine before, but I swapped to amsoil and the grinds practically dissappeared. It could be coincidental, but I was more than happy with it.

 

yah i was think to do a transmission flush with red line shock proof light... see if that would work.. any suggestions

 

^ FYI, i heard some people get grinds from Redline and/or Royal Purple. And those that were perfectly fine with Redline were from Arizona or California....hence warm climates.

 

i bought the car and havent done any maintence other than an engine oil change. i bought it with 65k miles and now it has like 72k.

 

ok i guess ill go with amsoil !!!??

 

Thats what I'm going to go with. I'm already at 55k though and still have not changed my fluid in the trans.

 

its due time to change all the fluids.

 

respect homeyss