Tranny problem
07-19-2004, 01:11 PM
#32
my 02 wrx's gears are beginning to grind as well and i don't abuse the transmission or clutch. very disappointing and i'll be bringing my car in for dealer service at my next convenient opportunity. also i have the "updated" clutch assembly that is supposed to be heavier and therefore takes load off the transmission.
07-19-2004, 04:30 PM
#34
Registered User
Join Date: Apr 2003
Location: CA
Posts: 67
Car Info: 2004 WRB WRX
Originally Posted by OneManArmy
well shoot man.
I have a 2004 wrx wagon. No performance mods whatsoever. (sadly)
well I go on this drive to visit my brother...1000 miles total in 5 days.
So this happened a few times in the last couple months. When shifting into 4th gear it'll grind. I just figured I didn't put the clutch in all the way or something stupid like that. (But I know I did)
So on this trip it starts happening more and more. The warmer the car is the more it does it...an since I was driving mountain roads in 100degree weather it was pretty freakin hot. Got so bad as one time it just wouldn't accept it and I had to go strait to 5th.
So yeah... over about 4500 rpms it grinds pretty much every time I put it into 4th. Especially while warm.
From what I understand, its the synchro's going bad. I just changed my tranny fluid with the redline 75w90NS, so its not the gear oil.
I have 23k miles on my car. What do you think the problem is? I mean what happens when I take it to the dealer and they tell me they can't reproduce it and I pick it up drive home and it starts doing it again...damn it.
Freaking pissed. I do not drive that hard..in fact my girlfriens says I drive like I'm a grandpa. I get on it occassionally but for the most part am a 4-5k shifter and I've driven stick for like....10 years.
Should I just take it in and hope they can reproduce it?
I have a 2004 wrx wagon. No performance mods whatsoever. (sadly)
well I go on this drive to visit my brother...1000 miles total in 5 days.
So this happened a few times in the last couple months. When shifting into 4th gear it'll grind. I just figured I didn't put the clutch in all the way or something stupid like that. (But I know I did)
So on this trip it starts happening more and more. The warmer the car is the more it does it...an since I was driving mountain roads in 100degree weather it was pretty freakin hot. Got so bad as one time it just wouldn't accept it and I had to go strait to 5th.
So yeah... over about 4500 rpms it grinds pretty much every time I put it into 4th. Especially while warm.
From what I understand, its the synchro's going bad. I just changed my tranny fluid with the redline 75w90NS, so its not the gear oil.
I have 23k miles on my car. What do you think the problem is? I mean what happens when I take it to the dealer and they tell me they can't reproduce it and I pick it up drive home and it starts doing it again...damn it.
Freaking pissed. I do not drive that hard..in fact my girlfriens says I drive like I'm a grandpa. I get on it occassionally but for the most part am a 4-5k shifter and I've driven stick for like....10 years.
Should I just take it in and hope they can reproduce it?
My car just started the same exact problem and I have about 32,000 miles on my 04 wrx.
07-19-2004, 04:41 PM
#35
Registered User
Join Date: Feb 2004
Location: The Hunted Forest
Posts: 720
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
Originally Posted by escaflowne
sorry, but what's the grinding sound? is it a loud whine? i have that in 1st and 2nd.
-jbl
-jbl
By grind they mean the snychro's not working effectively enough and the gears will grind against eachother until they slow down enough for the gear to pop into place.
In howstuffworks.com there is a good explaination of how schro's work
07-20-2004, 06:56 PM
#37
VIP Member
iTrader: (9)
Join Date: Nov 2003
Location: Walnut Creek, CA
Posts: 3,709
Car Info: CRZ EX-Navi/6MT & Vue Redline
Originally Posted by OneManArmy
take it in pronto...before your warranty is up. From what I hear this is more common than I expected. bum syncros.
-Chris
07-20-2004, 09:50 PM
#39
VIP Member
iTrader: (9)
Join Date: Nov 2003
Location: Walnut Creek, CA
Posts: 3,709
Car Info: CRZ EX-Navi/6MT & Vue Redline
Originally Posted by escaflowne
does grinding sound sorta like a mis-shift?
i read up on syncros a long time ago. Soo helpful, yet problematic at the same time...
i read up on syncros a long time ago. Soo helpful, yet problematic at the same time...
-Chris
07-23-2004, 09:28 AM
#43
Former Sponsor
iTrader: (3)
Join Date: Nov 2002
Location: gbmotorsports Hayward, CA
Posts: 2,085
Car Info: I got a couple :)
Originally Posted by escaflowne
my 3 to 1 is NASTY. my goodness, it thumps and the entire car jolts. 1 to 2 does the same.
No one should shift a car rolling from any gear to 1st (WOW!!!!) Double clutching is a thing in the past when there was no syncro's on trannies.
Now all trannies have syncros and the double clutch thing is not the solution.
Going from any gear to 1st will break your tranny (in time) period !!!!!!
Yes it will go into first gear from any gear while slowing down and it seems normal but then again you have not seen a tranny abused from doing this as we have on the ones that we open.
If you drive like that, in time it will grind (wear down syncros) and or break a tooth or two on first gear and just speed up the breakage on first gear hard launches.
Just drive normal and be smooth and you can save your tranny.. It is an AWD vehicle and something has to give/slip and lets not make it your tranny.
no harm intended to anyone, just helping out from what we have seen...gino
www.gb-motorsports.com
www.mpjperformance.com
07-23-2004, 10:09 AM
#44
Registered User
Join Date: Sep 2003
Location: Atlanta/Cayman Islands
Posts: 313
Car Info: 2002 White WRX Wagon (WWW)
Originally Posted by gbmotorsports
No one should shift a car rolling from any gear to 1st (WOW!!!!) Double clutching is a thing in the past when there was no syncro's on trannies.
Now all trannies have syncros and the double clutch thing is not the solution.
www.gb-motorsports.com
www.mpjperformance.com
Now all trannies have syncros and the double clutch thing is not the solution.
www.gb-motorsports.com
www.mpjperformance.com
Summary: Double clutching not a thing of the past, it's a good thing. Learn it, love it, live it.
P.S. As for shifting techniques, I think this should be in the WRX owner's manual: http://www.spdusa.com/shifting.htm
07-23-2004, 10:34 AM
#45
Former Sponsor
iTrader: (3)
Join Date: Nov 2002
Location: gbmotorsports Hayward, CA
Posts: 2,085
Car Info: I got a couple :)
you are not racing on the streets
by double clutching you are just wasting your effort on the streets
you must be an old school guy!
I race cars as well as build them and rebuild trannies and you need not double clutch on this day and age on normal driving.
Racing is another subject entirely and we are talking any gear downshifts back to 1st gear while rolling on daily driving, that is a disaster for a daily driving.
You should know that since you race cars, we do that when we race and on purpose to pitch the cars on dirt for set up approaches. On race cars you can do whatever you need to to get moving, but that is a race car....double clutching slows down the gears and thus it engages smoothly... you are fooled my friend. That is on race cars and not on Subaru daily driven street cars.
So you are telling me that you double clutch daily..LMAO
gino
by double clutching you are just wasting your effort on the streets
you must be an old school guy!
I race cars as well as build them and rebuild trannies and you need not double clutch on this day and age on normal driving.
Racing is another subject entirely and we are talking any gear downshifts back to 1st gear while rolling on daily driving, that is a disaster for a daily driving.
You should know that since you race cars, we do that when we race and on purpose to pitch the cars on dirt for set up approaches. On race cars you can do whatever you need to to get moving, but that is a race car....double clutching slows down the gears and thus it engages smoothly... you are fooled my friend. That is on race cars and not on Subaru daily driven street cars.
So you are telling me that you double clutch daily..LMAO
gino