New Tires Cause Transmission Failure???
Welcome to the site! Take a minute to register and join us. It's FREE! (and fun)
The ORIGINAL Aztek Fan Club Welcome, Guest. Please login or register.
Did you miss your activation email?
Always stay logged in

Login with username, password and session length
Home Gallery Help Login Register
Pages: [1]   Go Down
  Print  
Author Topic: New Tires Cause Transmission Failure???  (Read 3806 times)
0 Members and 1 Guest are viewing this topic.
rukingery
Member
*
Offline Offline

Posts: 5


« on: April 12, 2010, 10:34:10 AM »

So last week my wife was driving our '01 AWD Tek home and the transmission failed.
 
(only 85k miles!!!)

I took it to a mechanic and he said it failed because the front and rear pairs of tires were different sizes. My wife blew out a tire last fall and I bought her 4 "new" tires at a used tire place nearby.  Since these are the first tires I've gotten for the Tek, they told me at the tire place that I had to make sure to get matching pairs of tires since it was AWD, which I did.  The front and rear tires are the same SIZE, but my mechanic said the treads were different and that they were more than an 1" different in diameter from each other.

Is it really true that having a tread difference would destroy a transmission on an AWD Tek, or is this guy taking me for a ride?
Logged
revken
Intermediate User
**
Offline Offline

Posts: 22


« Reply #1 on: April 12, 2010, 12:02:56 PM »

I was told the same thing by Sams Club and Discount Tire. They wouldn't sell me a set of two tires because they have had to replace some vehicles over this issue. 2 years ago Sams sold me a set of two tires, but the next year they would not sell me just two more. What I was told is that they AWD system senses slippage by sensing the wheel speeds and if the front wheel to back wheel speeds are not within a certain speck then the AWD system will kick in and then you have all four wheels locked in sync only running at different speeds(bad). Not sure how true that is, but it doesn't sound too wacky to me. I was able to get Discount Tire to sell me two of the same tires as my newer one's because the tread difference was not too different.
I currently have a noise from by rear end (Versitrak) that sounds like when you have a ball card in the spokes of your bike wheel. It is consistent with the speed of the vehicle and does not matter if you turn or go strait. It has been getting loader over the last 1,000-1,500 miles and I'm starting to get concerned.
When I bought the car with 67,000 miles the tires had never been rotated and the front one's were toast while the back one's were still good for another year. I replaced the toasted one's for winter and then replaced the older pair for this winter. I hope that this noise is not related to the tires having been significantly different sized for 35,000 miles. My transmission is fine, but I just changed the fluid and filter because of the miles.
I did a search on the "Versitrak groan", but my noise is not related to turning. I now have 99,500 Miles and have only had to replace the Shocks/Struts, Brakes front and back, Trans fluid/filter(99,500mi), and the Rear upper Bushings. I'm hoping this is just a fluid change issue, but I would like more info before I do too much.
Any Help?
Logged
revken
Intermediate User
**
Offline Offline

Posts: 22


« Reply #2 on: April 12, 2010, 12:05:29 PM »

Hey, Should I post my rear end noise on it's own thread?  I don't want to double post, but I'm not sure if this thread will get the views from those who will help with this issue.
Logged
rukingery
Member
*
Offline Offline

Posts: 5


« Reply #3 on: April 12, 2010, 12:27:40 PM »

Thanks,
I probably would post your problem on another thread just so it is seen...

I appreciate your response.  That's more info than I had before...
Logged
Pontiac6KSTEAWD
100 Club Members
****
Offline Offline

Posts: 314

Car Nut!


« Reply #4 on: April 16, 2010, 01:55:28 AM »

Yikes... Simply put, as a mechanic, in ANY AWD car, whether american, or not, if you replace 1 tire, you best replace all 4 of them. You can grenade differentials, transfer cases, trannys, and wheel bearings (depending on how stout the build is)..

They weren't lying to you. Even with 2 wheel drive cars, if you have diferent tires on one axle, you can have problems, depending if its a open rear/front end, or not. 4wd same rule applies. You must have matched tires at least to the axle on 2wd/4wd. The reason you can get away with it on the 4wd from front to rear, is because its part time. Its not something you leave engaged for thousands of miles. However, with a electronically controlled AWD, or even a viscous dif AWD, you can run into a lot of problems unless all 4 tires match, and are rotated regularly.

I rotate mine every 3000 miles.
Logged

Brian - Carpe Diem

01 Pontiac Aztek GT OPT AWD 110k - 04 GMC Envoy XUV 150k

rukingery
Member
*
Offline Offline

Posts: 5


« Reply #5 on: April 16, 2010, 07:17:38 AM »

Thanks guys.  It's all fixed now.  I appreciate the info.  I will be rotating the tires more regularly for now on....
Logged
trev0006
Member
*
Offline Offline

Posts: 7


« Reply #6 on: January 03, 2013, 02:06:49 PM »

This is good to know, sorry to hear what happened.



So last week my wife was driving our '01 AWD Tek home and the transmission failed.
 
(only 85k miles!!!)

I took it to a mechanic and he said it failed because the front and rear pairs of tires were different sizes. My wife blew out a tire last fall and I bought her 4 "new" tires at a used tire place nearby.  Since these are the first tires I've gotten for the Tek, they told me at the tire place that I had to make sure to get matching pairs of tires since it was AWD, which I did.  The front and rear tires are the same SIZE, but my mechanic said the treads were different and that they were more than an 1" different in diameter from each other.

Is it really true that having a tread difference would destroy a transmission on an AWD Tek, or is this guy taking me for a ride?
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by SMF 1.1.20 | SMF © 2013, Simple Machines
Theme Underground Yellow