Will a 2005 transmission work in a 2003?
Joined: Aug 2006
Posts: 7,244
Likes: 23
From: Austin, Texas
Will a 2005 transmission work in a 2003?
Whats going on guys? Does anyone know if a transmission from a 2005 will work in a 2003? I know they added rev matching to one of the newer years, but not sure exactly what year...let me know.
-Sean
-Sean
+1 i want to know this too
...i'm thinking it'll bolt right up with no problems, but maybe some electronic issues, such as VDC, ABS, maybe even the speed sensors? That's just my wild guess.
...i'm thinking it'll bolt right up with no problems, but maybe some electronic issues, such as VDC, ABS, maybe even the speed sensors? That's just my wild guess.
Registered User
iTrader: (15)
Joined: Aug 2003
Posts: 1,846
Likes: 9
From: Toh-rensa,Ahteesia,Ahcadia,Montree Pak, Longa Beacha
You guys have different transmission types listed in your sigs.
For 6mt, should be an easy swap.
For 5AT, I think the newer years have the TCU somewhere in the transmission unit. Not 100% sure, but I remember that there's some changes, and I'm inclined to say that you can't do a straight swap.
For 6mt, should be an easy swap.
For 5AT, I think the newer years have the TCU somewhere in the transmission unit. Not 100% sure, but I remember that there's some changes, and I'm inclined to say that you can't do a straight swap.
Originally Posted by Nismo G
Whats going on guys? Does anyone know if a transmission from a 2005 will work in a 2003? I know they added rev matching to one of the newer years, but not sure exactly what year...let me know.
-Sean
-Sean
-AGThing1227
Won't work. You need the tranny and the tranny TCM and I highly doubt the 2003 engine ECU harness to TCM match that of the 05+ TCM.
Trending Topics
Guest
Posts: n/a
Originally Posted by DaveB
Won't work. You need the tranny and the tranny TCM and I highly doubt the 2003 engine ECU harness to TCM match that of the 05+ TCM.
Joined: Aug 2006
Posts: 7,244
Likes: 23
From: Austin, Texas
Originally Posted by HomieG35
Agreed. I think several things changed between '03 and '05 as far as how the tranny acts within the computer realm of it (for the 5AT). I don't even think the '04 would work... (ie, "rev limit" / starting in, what is it, 4th gear, not 1st when switched from auto to mm / shifting for you / etc.)
-Sean
Joined: Aug 2006
Posts: 7,244
Likes: 23
From: Austin, Texas
Originally Posted by HomieG35
Yeah, I think I was trying to get out that the '03 will shift for you, unlike the 04+ that will just bounce off the rev limiter in MM. Sorry 
-Sean
Guest
Posts: n/a
From the '03's I drove (I worked at an Infiniti dealer) I remember if you floored the 03's while in MM when it got to redline it would shift for you if you didn't. In the 04+ if you were in MM and got to redline it wouldn't shift for you, just bang off the limiter until you did decided to upshift (my '04.5 does this). You don't have to let off the gas to shift at all.
You saying that bounces [once?] then goes below 6700 and shifts for you maybe the same thing I'm trying to describe. Even if the '03 does just bounce for a second before it shifts the later year models will let you bounce off the rev limit all day in any gear.
You saying that bounces [once?] then goes below 6700 and shifts for you maybe the same thing I'm trying to describe. Even if the '03 does just bounce for a second before it shifts the later year models will let you bounce off the rev limit all day in any gear.
Joined: Aug 2006
Posts: 7,244
Likes: 23
From: Austin, Texas
Originally Posted by HomieG35
From the '03's I drove (I worked at an Infiniti dealer) I remember if you floored the 03's while in MM when it got to redline it would shift for you if you didn't. In the 04+ if you were in MM and got to redline it wouldn't shift for you, just bang off the limiter until you did decided to upshift (my '04.5 does this). You don't have to let off the gas to shift at all.
You saying that bounces [once?] then goes below 6700 and shifts for you maybe the same thing I'm trying to describe. Even if the '03 does just bounce for a second before it shifts the later year models will let you bounce off the rev limit all day in any gear.
You saying that bounces [once?] then goes below 6700 and shifts for you maybe the same thing I'm trying to describe. Even if the '03 does just bounce for a second before it shifts the later year models will let you bounce off the rev limit all day in any gear.
-Sean
Depends where your TCM is located. Early autos had them inside the cabin. Later models had them inside the tranny. So phyically it should bolt up. Wiring the damn thing might be a problem
Joined: Aug 2006
Posts: 7,244
Likes: 23
From: Austin, Texas
Originally Posted by Jeff92se
Depends where your TCM is located. Early autos had them inside the cabin. Later models had them inside the tranny. So phyically it should bolt up. Wiring the damn thing might be a problem
-Sean