Anyone have this problem???

It only seems as though it is when I first start up. Really only noticable if I do a U-turn or tight turn the rear tires squeel. And the new tires leave black marks on my driveway when just driving straight.

 

might be the release agent from the new tires causing the noise and marks. is there any vibration transferring through the cars drivetrain?

 

it actually feels as thought the car is bogging down during a u-turn. There is a vibration at 75 but i think it is more a bad balance on the tires.

 

well, really, I believe this is totally normal with AWD. Obviously, when making a very tight turn, your outside tires are turning faster than the inside tires. This is detected as slipping and the AWD is trying to compensate. And I agree that maybe your new tires just need to break in a bit. So you are hearing them more because they are still new and kind of slick. (also the marks you are leaving) If it doesn't go away soon ... well, I dunno what you should do about it.

 

I don't think that's quite right. Anytime you have a differential in a turn, one wheel is spinning faster than the other. Plus, the front and rear differentials on the X are open differentials so unless there is something very wrong with them, they cannot lock. Below something like 12 mph, the AWD is always partially engaged, something like 25/75 front/rear split. As far as leaving marks, unless you hear your tires spinning without moving, I'd say its the compound from the new tire still coming off.

 

so then we're left with answering why his tires are squealing in a tight turn. If at slow speeds, even the compound shouldn't cause that problem.

So on our cars, if we have open diffs, which wheel on each axle does the work? (ie, both right tires, both left, or one of each?)

And even with open diffs, wouldn't the car still detect these differences in turning speeds as slippage? I'm not sure what it would do about it ... just thinking out loud. I've never fully understood how these systems are set up (systems being stability, traction, AWD, or what have you).

 

Kind of obvious...but were you having the same issues before getting the new tires?

 

Just bought the car and put new tires on. the old ones at 45000 seemed to be worn evenly.
I am coming from an Evo VIII so it is not my first AWD car. And that car never did what this does.
I have the extended warranty for about 5 more months so I guess I will just watch it and see if the tires wear abnormally.
It is just like the inside rear wheel is locking up and not turning. But I have been told that these cars are bad on tires period.
I just changed the rear diff fluid and it didnt change things a whole lot. But there was a lot of gunk in the bottom at the magnet.

Thanks for the help

 

maybe I will pull the awd fuse and see if that makes a difference. That would take the center diff out of the equation right?

 

Qbrozen:

I knew at one time which wheel was the drive wheel, but I can't remember which one it is right now and my FSM isn't in front of me. As for slippage, there would have to be a large differential between wheels (left wheel at 5 mph, right at 30 mph for example) before it would be considered slippage.

Aussie:

What about the possibility of the wheel bearing going out? That could cause one of the wheels to lock. Is there a burning smell coming from that wheel? As for puling the AWD fuse, that woudl take the center diff out, along with the front diff. You would have a pure RWD vehicle at that point.

 

I dont think its a bearing. Ive had plenty of those go out on the EVO (After having too much fun in the snow around curbs) and it doesnt act the same. Plus it tends to be the inside wheel turning in different directions. So it is both sides.
I will pull the fuse and drive it for a few days. see what it does.

 

Do you think it would be noticeable to someone standing outside the car? If so then have someone drive in a circle around you and see if you can tell what is going on.

 

OK..after pulling the awd fuse and driving for a bit it seems as though all the symptoms are gone. It no longer squeels. Sooooo.....
After reviewing the FSM it has a diagnostic series to follow. (TF-41). But I am thinking it is most likely the awd solenoid or the awd control module. Either way it sounds expensive.
let me know what you guys think....

tia

 

Cheapest option would probably to do a flush of the transfer case fluid, possibly the front differential fluid also. Are you still under warranty? The AWD system should be under the 6 year/70000 mile powertrain warranty.

 

That doesn't seem right. I mean, that means I would be in a spin before the system knows and tries to intervene?