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Mazda2 2nd gear synchro Failure? #4442513
06/27/17 06:06 AM
06/27/17 06:06 AM
Joined: Jan 2012
Posts: 16
...
SiRDOHC Offline OP
SiRDOHC  Offline OP
Joined: Jan 2012
Posts: 16
...
I have a relatively low mile Mazda2, I bought it with very low Miles when it was 6 months old (6K Miles). Currently has only 28K. Was driving it to a cabin in the sticks last weekend, so there were a lot of gear changes due to all the hills and twisty roads. I was having fun with it, but not in an abusive way. The driveway was steep so after going into it, I decided to reverse out of it while everything was still warm to avoid having to climb it in reverse when everything was cold as I left. I Parked the car and had my fun weekend on the lake. When I went to go drive the car home, 2nd gear was gone, well any ability to shift into it while moving was. I could start in second gear, and shift out of it, but I can not shift into it without forcing it in with a really nasty grind. All other gears go in like normal.

I got it home avoiding using 2nd, which isn't difficult just annoying on a slow car. I bled the clutch and it made no difference. Drained the gear oil and there was a good amount of metallic particles in it, the gear oil only had 15K on it, because I changed it hoping to improve shift quality. Gonna put some new fluid in there and send 'er in for warranty, but what the [censored] happened here?

I Should note that I have never been quite satisfied with the shifting of this transmission. Inconsistent is the best way I can describe it, sometimes the gears would drop in like butter, and other times gears would catch and drag a bit and this wasn't related to ambient temperature but I did notice it shifted better after being on for many hours straight on the highway. I don't drive this car very hard at all, and have 18 years of manual driving experience, and haven't even used up a clutch in any of my cars in all that time.




2013 Mazda2 Touring
Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4442520
06/27/17 06:28 AM
06/27/17 06:28 AM
Joined: Dec 2014
Posts: 77
Texas
40w8 Offline
40w8  Offline
Joined: Dec 2014
Posts: 77
Texas
Oh dear! I had a 73 RX3 Mazda, and bought a 07RX8 with 6 speed auto.

The 2nd gear in 73 RX3 didn't work for me either.

I and you maybe made it worse by fixing it with wrong gear oil.

I was fuel distributor selling oils all the time, but got mine own wrong.

I put in normal great gear oil GL-5 when it needs a lessor oil GL-4 without the heavy duty sulfur additives.

I think lots of Mazda guys like Red LIne gear oil 90 GL-4.

Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4442571
06/27/17 08:03 AM
06/27/17 08:03 AM
Joined: Dec 2009
Posts: 387
Cincinnati
quint Online content
quint  Online Content
Joined: Dec 2009
Posts: 387
Cincinnati
I hope when you changed it you used a GL-4 oil......


1993 240sx convertible
2001 Sequoia
2012 Mazda 2
2012 Mazda 3 Totaled 3/16/18, R.I.P
2017 Mazda 3
2017 Kia Rio
Re: Mazda2 2nd gear synchro Failure? [Re: quint] #4442577
06/27/17 08:11 AM
06/27/17 08:11 AM
Joined: Jan 2012
Posts: 16
...
SiRDOHC Offline OP
SiRDOHC  Offline OP
Joined: Jan 2012
Posts: 16
...
I used a GL-4, 75W80 as per the owners manual, Filled to the correct oil level using the method in the service manual.


2013 Mazda2 Touring
Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4442604
06/27/17 08:46 AM
06/27/17 08:46 AM
Joined: May 2009
Posts: 12,190
N.H, U.S.A.
ARCOgraphite Online content
ARCOgraphite  Online Content
Joined: May 2009
Posts: 12,190
N.H, U.S.A.
Where has the clutch been engaging? Close to carpet? I had a LOT of trouble with hydraulics on MT's over the past few decades. Low clutch engagement will eat blockers fast.

A In my experience a dual purpose GL4/GL5 will likely result in balky shifts. Blame it on having shared lube betwixt the differential and the trans.

I had a mazda 2 rental. A bit to twitchy for me, I really liked (surprisingly) the Ford Fiesta rental with the doppelkupplung. No Hydraulic pumping losses from a torque converter and fast shifts. Definitely an MT** alternative.

**( Yes, I put "an" before M as M is voiced like Em. It is preferred)


2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: Mazda2 2nd gear synchro Failure? [Re: ARCOgraphite] #4442764
06/27/17 12:37 PM
06/27/17 12:37 PM
Joined: Jan 2012
Posts: 16
...
SiRDOHC Offline OP
SiRDOHC  Offline OP
Joined: Jan 2012
Posts: 16
...
The clutch does engage not too far from the carpet, but not right on the carpet. I also sometimes am having it grind into 2nd while the vehicle is completely stationary, so I don't know if I can rule out the clutch system as the culprit. This would still be disappointing to have to go in there on such a new car.

Agree the Mazda is twitchy but its fine as a city car, Those Fiestas had issues with the complex transmissions failing but i'm sure they shift great when they work. I agree, I am done with manuals, the drive by wire, retarded throttle for emissions purposes and clutch delay valves have completely RUINED the experience. Not to mention, this car I have has some junky plastic parts in the clutch system (slave and master are made of plastic, I shouldn't have overlooked these when buying the car. Car and Driver wants to "Save the Manuals" and I ask why at this point would you want to do that?


Thanks for your input, and yes I agree with your grammar use.


2013 Mazda2 Touring
Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4442784
06/27/17 12:56 PM
06/27/17 12:56 PM
Joined: Aug 2012
Posts: 789
Lynchburg, VA, USA
SF0059 Offline
SF0059  Offline
Joined: Aug 2012
Posts: 789
Lynchburg, VA, USA
Can you row through the gears with the engine off? Does 2nd feel crunchy? Can you double-clutch and get it into gear?

I changed the gear oil on my 6 a around 7 or 8k with Redline 75w80 and a *gasp* additive. There was a lot of silver metal clouding in the oil, so I'm glad it is out of there.

Personally, I would change the oil to Redline and add a good additive like Lubegard *this the point where people start grabbing torches and pitchforks. Work the gear box with the engine off for a good long while. Then start driving it and see if it gets better. If that doesn't work, my guess is a bad synchro. It is worth it to try to fix it with fluid first, though.


2014 Honda Odyssey EX-L/RES: 54K mi, M1 0w-40 & FU, VCMuzzler V2
2017 Mazda 6 Touring 6MT: 22k mi, M1 AFE 0w20, OEM Filter
Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4442788
06/27/17 12:58 PM
06/27/17 12:58 PM
Joined: Sep 2003
Posts: 3,132
Austin, Texas
Brons2 Offline
Brons2  Offline
Joined: Sep 2003
Posts: 3,132
Austin, Texas
I just got a manual Sonata and I am loving it after 10 years driving automatics. Sorry to hear about the issues with your Mazda.


2012 Hyundai Sonata GLS 6MT 2.4GDI, ProDS 10w30, XG9688 filter, 2018 Mitsubishi Outlander SEL 2.4 CVT, Factory fill still.
Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4442799
06/27/17 01:13 PM
06/27/17 01:13 PM
Joined: Mar 2016
Posts: 1,351
toronto
PeterPolyol Offline
PeterPolyol  Offline
Joined: Mar 2016
Posts: 1,351
toronto
Inconsistent performance, 2nd being 'locked out' - I'd put money on it being the fluid (specifically the friction properties of it). I've seen this before in an MTXs that had incorrect fluid type and even MoS2 added to it, the synchros couldn't synchronize. Drop the fluid, flush with cheap atf maybe?, install the correct type and try again.

Re: Mazda2 2nd gear synchro Failure? [Re: SF0059] #4442874
06/27/17 02:33 PM
06/27/17 02:33 PM
Joined: Jan 2012
Posts: 16
...
SiRDOHC Offline OP
SiRDOHC  Offline OP
Joined: Jan 2012
Posts: 16
...
Double clutching and rev matching helps get it into gear. With the car off, I can row through the gears, 2nd feels no more crunchy than it did before this all happened.

It had 75W80 gear oil in it. My pitch fork is out. I'm not putting an additive in it to make it shift right, this is a 3 year old car with barely any miles, not a 13 year old car I'm trying to get another year out of.

I will be taking it in to the dealer when I can, and I will just skip the gear until then.


2013 Mazda2 Touring
Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4442908
06/27/17 03:14 PM
06/27/17 03:14 PM
Joined: Jun 2011
Posts: 434
USA - Southern California
Skid Offline
Skid  Offline
Joined: Jun 2011
Posts: 434
USA - Southern California
I don't know these cars at all so what I'm writing is just a guess.

1. Your clutch is dragging.
2. The dragging clutch killed your 2nd gear synchro.
3. A lot of these new cars have clutch delay valves, and Mazda is no exception. Clutch cushioning or something. Usually it's a tiny orifice, makes bleeding if there's a bubble virtually impossible (you're not going to push a bubble down).
4. You can try reverse bleeding, better than nothing. Could save the rest of your synchros.

Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4443047
06/27/17 06:18 PM
06/27/17 06:18 PM
Joined: Dec 2006
Posts: 18,623
Dallas,Tx USA
aquariuscsm Online content
aquariuscsm  Online Content
Joined: Dec 2006
Posts: 18,623
Dallas,Tx USA
I've seen this alot with the past few years with junk manual transmissions. Mustang manual transmissions were grinding/crunching 2nd gear as well at one time recently. Seems like manuals aren't what they used to be. I'm guessing you have a weak 2nd gear synchronizer.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4443077
06/27/17 06:49 PM
06/27/17 06:49 PM
Joined: Mar 2016
Posts: 1,351
toronto
PeterPolyol Offline
PeterPolyol  Offline
Joined: Mar 2016
Posts: 1,351
toronto
With that mileage, it should have the factory fill in there and the clutch hydro system should not have been tampered with at all. If that's the case, take to the dealer obviously. If it was serviced for some reason, then someone screwed up. You definitely don't want to use additives in an MTX, and I doubt there is any additive that will 'make it shift right'. Also curious what 'pitch fork out' means?

Re: Mazda2 2nd gear synchro Failure? [Re: PeterPolyol] #4443215
06/27/17 09:25 PM
06/27/17 09:25 PM
Joined: Jan 2012
Posts: 16
...
SiRDOHC Offline OP
SiRDOHC  Offline OP
Joined: Jan 2012
Posts: 16
...
Originally Posted By: PeterPolyol
With that mileage, it should have the factory fill in there and the clutch hydro system should not have been tampered with at all. If that's the case, take to the dealer obviously. If it was serviced for some reason, then someone screwed up. You definitely don't want to use additives in an MTX, and I doubt there is any additive that will 'make it shift right'. Also curious what 'pitch fork out' means?





Screwed what up? The transmission got the 75W80 that Mazda specifies. How is replacing any fluid, even if early, tampering?



Last edited by SiRDOHC; 06/27/17 09:30 PM.

2013 Mazda2 Touring
Re: Mazda2 2nd gear synchro Failure? [Re: SiRDOHC] #4443219
06/27/17 09:30 PM
06/27/17 09:30 PM
Joined: Feb 2013
Posts: 10,686
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,686
Phoenix, AZ
Looks like it's a 2013, shouldn't it still be under the 5 year warranty? Take it to the dealer.


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
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