HELP 2009 G37S 3rd gear grind
06-15-2016, 03:41 AM
#1
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HELP 2009 G37S 3rd gear grind
I have a 2009 G37S with 81,000 miles. I'll never grind when I'm driving slow, or calmly, or when I shift at a normal speed. When I'm doing a wide openthrottle pull and shift fast at redline in 2nd into 3rd I get a grind every time. Clutch is going down all the way. It doesn't grind when I go slowly into the gear. Synchro problem?
06-15-2016, 10:51 AM
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06-15-2016, 11:44 AM
#4
Boom, pay your nominal deductible and have a new trans installed! Just take a tech with you and show them how/when it grinds. The sooner the better though, if you wait too long they might be able to blame it on you or something? Warranties can be finicky with a ton of loopholes to benefit them.
06-17-2016, 09:53 AM
#5
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If you just got the car, you may still be learning the touchiness of the gearbox.
It took me forever (still perfecting) to learn the shifting. I thought something was wrong with my syncros too because it always "hit" when shifting. Figured I was shifting too fast, and not letting it "fall" into place.
It also may be as simple as a tranny fluid change. Check your color on it, and go from there. This car is a MF'r to perfect in shifting. Hope this helps.
It took me forever (still perfecting) to learn the shifting. I thought something was wrong with my syncros too because it always "hit" when shifting. Figured I was shifting too fast, and not letting it "fall" into place.
It also may be as simple as a tranny fluid change. Check your color on it, and go from there. This car is a MF'r to perfect in shifting. Hope this helps.
06-17-2016, 11:09 AM
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If you just got the car, you may still be learning the touchiness of the gearbox.
It took me forever (still perfecting) to learn the shifting. I thought something was wrong with my syncros too because it always "hit" when shifting. Figured I was shifting too fast, and not letting it "fall" into place.
It also may be as simple as a tranny fluid change. Check your color on it, and go from there. This car is a MF'r to perfect in shifting. Hope this helps.
It took me forever (still perfecting) to learn the shifting. I thought something was wrong with my syncros too because it always "hit" when shifting. Figured I was shifting too fast, and not letting it "fall" into place.
It also may be as simple as a tranny fluid change. Check your color on it, and go from there. This car is a MF'r to perfect in shifting. Hope this helps.
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06-17-2016, 11:54 AM
#8
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I'm not so sure you're going to get a dealer to replace the tranny just because it grinds when your bashing on the car. If theres no grinding during normal driving they won't do anything. Being an 09 you just got that prob means your warranty is one of those 3rd party bs ones that aren't worth the paper they're printed on. That is unless you somehow got infiniti to do a CPO warranty on a 7 year old car 
That being said i doubt the tranny or CSC is bad if you're only seeing the problem under hard driving. Most likely you just aren't used to the car yet and while you think you're spot on shifting you aren't in actuality. Truth is it's very easy to grind gears when your having some fun under spirited driving and paying more attention to the vroom then the shifting.
My 08 has 87k on it and i have no problems with grinds under spirited or calm driving. I do have issues getting back into first if im going to fast. Usually have to come to a full stop to cleanly get into first.
That being said i doubt the tranny or CSC is bad if you're only seeing the problem under hard driving. Most likely you just aren't used to the car yet and while you think you're spot on shifting you aren't in actuality. Truth is it's very easy to grind gears when your having some fun under spirited driving and paying more attention to the vroom then the shifting.
My 08 has 87k on it and i have no problems with grinds under spirited or calm driving. I do have issues getting back into first if im going to fast. Usually have to come to a full stop to cleanly get into first.
06-17-2016, 12:07 PM
#9
I'm not so sure you're going to get a dealer to replace the tranny just because it grinds when your bashing on the car. If theres no grinding during normal driving they won't do anything. Being an 09 you just got that prob means your warranty is one of those 3rd party bs ones that aren't worth the paper they're printed on. That is unless you somehow got infiniti to do a CPO warranty on a 7 year old car
That being said i doubt the tranny or CSC is bad if you're only seeing the problem under hard driving. Most likely you just aren't used to the car yet and while you think you're spot on shifting you aren't in actuality. Truth is it's very easy to grind gears when your having some fun under spirited driving and paying more attention to the vroom then the shifting.
My 08 has 87k on it and i have no problems with grinds under spirited or calm driving. I do have issues getting back into first if im going to fast. Usually have to come to a full stop to cleanly get into first.
That being said i doubt the tranny or CSC is bad if you're only seeing the problem under hard driving. Most likely you just aren't used to the car yet and while you think you're spot on shifting you aren't in actuality. Truth is it's very easy to grind gears when your having some fun under spirited driving and paying more attention to the vroom then the shifting.
My 08 has 87k on it and i have no problems with grinds under spirited or calm driving. I do have issues getting back into first if im going to fast. Usually have to come to a full stop to cleanly get into first.
I'd say that's pretty standard. I have always been forced to be going like 10mph or less to get back into first.
06-17-2016, 05:14 PM
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I'm not so sure you're going to get a dealer to replace the tranny just because it grinds when your bashing on the car. If theres no grinding during normal driving they won't do anything. Being an 09 you just got that prob means your warranty is one of those 3rd party bs ones that aren't worth the paper they're printed on. That is unless you somehow got infiniti to do a CPO warranty on a 7 year old car
That being said i doubt the tranny or CSC is bad if you're only seeing the problem under hard driving. Most likely you just aren't used to the car yet and while you think you're spot on shifting you aren't in actuality. Truth is it's very easy to grind gears when your having some fun under spirited driving and paying more attention to the vroom then the shifting.
My 08 has 87k on it and i have no problems with grinds under spirited or calm driving. I do have issues getting back into first if im going to fast. Usually have to come to a full stop to cleanly get into first.
That being said i doubt the tranny or CSC is bad if you're only seeing the problem under hard driving. Most likely you just aren't used to the car yet and while you think you're spot on shifting you aren't in actuality. Truth is it's very easy to grind gears when your having some fun under spirited driving and paying more attention to the vroom then the shifting.
My 08 has 87k on it and i have no problems with grinds under spirited or calm driving. I do have issues getting back into first if im going to fast. Usually have to come to a full stop to cleanly get into first.
Another thing... should I be considered if my transmission/clutch/I think synchro's are all loud and hearable. Also throw out bearing. I know Nissans are notorious for loud throw out bearings.
06-17-2016, 05:41 PM
#11
Here's the trick. Take it to a separate Nissan/Infiniti dealer that you didn't buy it from. Say you're hearing some noise and grinding issues while shifting and would like an estimate for repairs. DONT MENTION warranty, pretend youre prepared to pay cash and get it done.... Once they're done, if they find anything it'll all be listed there for you. If you see the trans or internal parts listed. Take it back to where you bought it and ask for the repairs to be done under warranty. This way, if the mechanic is lazy and doesn't want to do it, it wont be up to him to decide what needs attention.
Remember, it may not be a big issue right now, but it will almost always get worse and be a problem later. Make sure it gets done now while its convenient and not down the road when your stranded on your way to work and likely out of warranty.
Remember, it may not be a big issue right now, but it will almost always get worse and be a problem later. Make sure it gets done now while its convenient and not down the road when your stranded on your way to work and likely out of warranty.
06-17-2016, 05:43 PM
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Here's the trick. Take it to a separate Nissan/Infiniti dealer that you didn't buy it from. Say you're hearing some noise and grinding issues while shifting and would like an estimate for repairs. DONT MENTION warranty, pretend youre prepared to pay cash and get it done.... Once they're done, if they find anything it'll all be listed there for you. If you see the trans or internal parts listed. Take it back to where you bought it and ask for it to get done under warranty. This way, if the mechanic is lazy and doesn't want to do it, it wont be up to him.
Remember, just because its not a big issue right now, it will almost always get worse and be a problem later. Make sure it gets done now while its convenient and not down the road when your stranded on your way to work and likely out of warranty.
Remember, just because its not a big issue right now, it will almost always get worse and be a problem later. Make sure it gets done now while its convenient and not down the road when your stranded on your way to work and likely out of warranty.
.. $100 now is better than $1000's later.
06-17-2016, 06:20 PM
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Very true. I'm hoping I'm just nuts. Car drives great and that's the only issue is that 3rd gear grind that only happens somtimes.
