Rear wheel spin - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum

lmiksche1 · 12-01-2012, 05:20 AM

Hi,

i have problem with rear wheel spin, looks like there is no power to front wheels and heard some bang. The driveshafts apear to be O.K. any advise what else can be wrong? I suspect front diff or propshaft, but that would have to be serious power to brake propshaft. Is there any thread which shows exactly how this works? Any help would be appriciated. The car electronics only detects recent ABS sensor malfunction on one of the rear wheels, but i thing this should not affect 4WD as the front should be engaged at all times.
There is a possibility, that im just imagining it and the rear is likely to spin whit DSC off. Is there some simple test for this? I was thinking about leave my handbrake on a little bit so i would disengage the rear, then step on it and see if there is any power. But it realy feels like there is too much power to rear compared to front.

GroceryGetter · 12-01-2012, 09:13 AM

IMO, I really wouldn't drive the car anymore until you get it checked out. You could have broken any number of things, and could be doing more damage each time you drive it.

TiGraySpeed6 · 12-01-2012, 09:46 AM

Mazdaspeed 6 Technical Training

That guide includes details on the awd system.

Assuming loss of torque to front axles, I'd suspect a problem with the front diff or perhaps the pto. It sounds as if one corner of the front is no longer getting drive.

If you're not mechanically inclined & well tooled than I would suggest contacting your Mazda dealer or mechanic of choice.

lmiksche1 · 12-01-2012, 10:43 AM

Well, the problem is, that when i put car to the Mazda garage, they said they couldn´t find anything wrong, no broken driveshafts or so, except the faulty ABS sensor in the rear. I tried to put a little bit of hanbrake on to disengage the rear and i got positive spin in the front, at at least one whel, but as there is just standard diff in the front it will transfer more torque to unloaded side. So i assume there is propably just so much torque that the tires can´t handle that any more. But i assume should something be wrong wit the diff or so, the electronics should detect it and give some warning. Correct?

GroceryGetter · 12-01-2012, 12:41 PM

I don't think anyone here can really determine what your problem is, without significantly more information. What mods are done to the car? What condition are the tires in? What were the driving conditions? What were you doing at the time the tires were spinning, ie launching, flooring it around a curve in the rain etc? That kind of thing.

lmiksche1 · 12-01-2012, 02:07 PM

Well the mods are simple. Stage 1 map + COBB SRI, 99oct fuel boostin 20psi. But running BBR map, not the COBB AP. The problem seems to be bad enough especialy on wet road, under full throtle at about 3-4,5K RPM, even on second gear it just breaks traction on straight road, it looks to me, that its just the rear, that spins, but could be the front as well, can´t tell for sure. Tires are standard winters Yokohama 215x35x18". But if some light comes on, its the traction contol, the 4WD light is off all the time. If i switch off the DSC, it just goes wild, but no indication of 4WD problem on dashboard and the garage says so as well, nothing they could see on diagnostic and visualy it looks O.K. as well, not sure if they look into the diff, but surely, if there is problem with diff, it wouldn´t be spining either front wheel when u put the handbrake on. So im realy getting to conlusion, that the problem is in my head, not in the car. But if im not mistaken it should only transfer more power to the rear only when it detects difference btw. front and rear wheel speed, so why would be then the rear spinning if so? I had the look at the shematics, but im not sure if i realy 100% understand how this works.

jm211 · 12-01-2012, 02:36 PM

Quote:

Originally Posted by TiGraySpeed6

It sounds as if one corner of the front is no longer getting drive.

Like a gearing for the front wheels sheered and is limiting transfer?

Try changing your PTO and trans oil. See if there is any metal parts or shavings.

As far as power distribution, its a 50/50 system and will send more power to the front if need be. I don't think power transfer to the rear ever exceeds 50%

Final Impact · 12-01-2012, 04:02 PM

unless you broke a spider gear in the front diff, it seems very unlikely there is hard failure in the front. Its pretty stout. That leaves the PTO and wheel speed sensor. You said it was defective, but it didn't throw a code and was it replaced??

lmiksche1 · 12-02-2012, 02:10 AM

It´s due to be replaced on tuesday. It only throw code for the wheel speed sensor of the ABS system. Could that be the cause? When i think of it, if it can actualy trigger the ABS, it surely must report to DSC, that the rear is going slower then the front, but only one wheel. Sorry i´m little bit a new to this what is PTO? Yes the limit is 100/0 to 50/50, so i dont think, there should be rear slip.

lmiksche1 · 12-02-2012, 06:31 PM

Well we´ve just got some snowfall, so i took the advantage of it and there is definately power to both front wheels, but i stil think that the balance of power front to rear is a bit off.

12-01-2012, 05:20 AM	#1 (permalink)
lmiksche1 Learners License Join Date: Oct 2012 Location: Hamilton UK Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) iTrader: 0 reviews	Rear wheel spin Hi, i have problem with rear wheel spin, looks like there is no power to front wheels and heard some bang. The driveshafts apear to be O.K. any advise what else can be wrong? I suspect front diff or propshaft, but that would have to be serious power to brake propshaft. Is there any thread which shows exactly how this works? Any help would be appriciated. The car electronics only detects recent ABS sensor malfunction on one of the rear wheels, but i thing this should not affect 4WD as the front should be engaged at all times. There is a possibility, that im just imagining it and the rear is likely to spin whit DSC off. Is there some simple test for this? I was thinking about leave my handbrake on a little bit so i would disengage the rear, then step on it and see if there is any power. But it realy feels like there is too much power to rear compared to front. Last edited by lmiksche1; 12-01-2012 at 07:32 AM.

12-01-2012, 09:13 AM	#2 (permalink)
GroceryGetter Registered User Join Date: Nov 2009 Location: Cleveland, OH Posts: 255 Thanks: 60 Thanked 34 Times in 25 Posts Groans: 10 Groaned at 15 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s) Quoted: 6 Post(s) iTrader: 0 reviews	IMO, I really wouldn't drive the car anymore until you get it checked out. You could have broken any number of things, and could be doing more damage each time you drive it. __________________ 06 WWP GT w/ Nav, production #07217 CP-E CAI, Test Pipe, Hypertech Tune

12-01-2012, 09:46 AM	#3 (permalink)
TiGraySpeed6 Mazda Guru Join Date: May 2008 Location: Tallahassee Posts: 4,770 Thanks: 1,856 Thanked 2,210 Times in 1,490 Posts Groans: 0 Groaned at 5 Times in 5 Posts Mentioned: 60 Post(s) Tagged: 2 Thread(s) Quoted: 213 Post(s) iTrader: 1 reviews	Mazdaspeed 6 Technical Training That guide includes details on the awd system. Assuming loss of torque to front axles, I'd suspect a problem with the front diff or perhaps the pto. It sounds as if one corner of the front is no longer getting drive. If you're not mechanically inclined & well tooled than I would suggest contacting your Mazda dealer or mechanic of choice. __________________ Mazdaspeed6 GT #3476 TiGray slicktop Cobb AP, SRI & TIP, BNR S3, MAC 3 Port, FMIC, TS BPV, 3 BAR MAP, VTCS Delete M2 DP & Magnaflow, KMD Internals, GPWerks BSD & Baffle, SM OCC, EGR Delete, SU Billet RMM TWM Stage II STS & JBR SSB, Prosport Mech Boost RX-8 wheels & 235/40 RE760, H&R Sport Springs, SPC abj's, Strapped diff Stage 1 Brakes: Slotted, Hawk’d, Lined & Blued 405/394 AWD - cf1.01 e38 BNRs3 315/372 AWD - cf1.01 e38 k04

12-01-2012, 12:41 PM	#5 (permalink)
GroceryGetter Registered User Join Date: Nov 2009 Location: Cleveland, OH Posts: 255 Thanks: 60 Thanked 34 Times in 25 Posts Groans: 10 Groaned at 15 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s) Quoted: 6 Post(s) iTrader: 0 reviews	I don't think anyone here can really determine what your problem is, without significantly more information. What mods are done to the car? What condition are the tires in? What were the driving conditions? What were you doing at the time the tires were spinning, ie launching, flooring it around a curve in the rain etc? That kind of thing. __________________ 06 WWP GT w/ Nav, production #07217 CP-E CAI, Test Pipe, Hypertech Tune

12-01-2012, 02:07 PM	#6 (permalink)
lmiksche1 Learners License Join Date: Oct 2012 Location: Hamilton UK Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) iTrader: 0 reviews	Well the mods are simple. Stage 1 map + COBB SRI, 99oct fuel boostin 20psi. But running BBR map, not the COBB AP. The problem seems to be bad enough especialy on wet road, under full throtle at about 3-4,5K RPM, even on second gear it just breaks traction on straight road, it looks to me, that its just the rear, that spins, but could be the front as well, can´t tell for sure. Tires are standard winters Yokohama 215x35x18". But if some light comes on, its the traction contol, the 4WD light is off all the time. If i switch off the DSC, it just goes wild, but no indication of 4WD problem on dashboard and the garage says so as well, nothing they could see on diagnostic and visualy it looks O.K. as well, not sure if they look into the diff, but surely, if there is problem with diff, it wouldn´t be spining either front wheel when u put the handbrake on. So im realy getting to conlusion, that the problem is in my head, not in the car. But if im not mistaken it should only transfer more power to the rear only when it detects difference btw. front and rear wheel speed, so why would be then the rear spinning if so? I had the look at the shematics, but im not sure if i realy 100% understand how this works. Last edited by lmiksche1; 12-01-2012 at 02:29 PM.

12-01-2012, 10:43 AM	#4 (permalink)
lmiksche1 Learners License Join Date: Oct 2012 Location: Hamilton UK Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) iTrader: 0 reviews	Well, the problem is, that when i put car to the Mazda garage, they said they couldn´t find anything wrong, no broken driveshafts or so, except the faulty ABS sensor in the rear. I tried to put a little bit of hanbrake on to disengage the rear and i got positive spin in the front, at at least one whel, but as there is just standard diff in the front it will transfer more torque to unloaded side. So i assume there is propably just so much torque that the tires can´t handle that any more. But i assume should something be wrong wit the diff or so, the electronics should detect it and give some warning. Correct?

12-01-2012, 04:02 PM	#8 (permalink)
Final Impact Registered User Join Date: Sep 2012 Location: USA, OR Posts: 1,228 Thanks: 416 Thanked 328 Times in 237 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 23 Post(s) Tagged: 1 Thread(s) Quoted: 194 Post(s) iTrader: 0 reviews	unless you broke a spider gear in the front diff, it seems very unlikely there is hard failure in the front. Its pretty stout. That leaves the PTO and wheel speed sensor. You said it was defective, but it didn't throw a code and was it replaced?? __________________ 2006 Mazda 6s GS Hatchback, Lapis Blue \| AJ 3.0 & AW6A-EL 6 Spd >79,000 If this post helped you, "thanks" never hurts.. .. ..

12-02-2012, 02:10 AM	#9 (permalink)
lmiksche1 Learners License Join Date: Oct 2012 Location: Hamilton UK Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) iTrader: 0 reviews	It´s due to be replaced on tuesday. It only throw code for the wheel speed sensor of the ABS system. Could that be the cause? When i think of it, if it can actualy trigger the ABS, it surely must report to DSC, that the rear is going slower then the front, but only one wheel. Sorry i´m little bit a new to this what is PTO? Yes the limit is 100/0 to 50/50, so i dont think, there should be rear slip. Last edited by lmiksche1; 12-02-2012 at 03:01 AM.

12-02-2012, 06:31 PM	#10 (permalink)
lmiksche1 Learners License Join Date: Oct 2012 Location: Hamilton UK Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) iTrader: 0 reviews	Well we´ve just got some snowfall, so i took the advantage of it and there is definately power to both front wheels, but i stil think that the balance of power front to rear is a bit off. __________________ Mazda 6 MPS, COBB SRI, Turbosmart 2 way BOV, Stage1 MAP.

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