AWD question

jeffs92svx · #1 12-14-2010, 04:57 AM

I dont know anything about our awd system. This morning me and the wife were out in the snow. I have pretty much bald all season tires on the svx. Amazingly it comes out of my drive way and up my huge hill and it is slick. My question is, I had my wife to stomp it while I watched in the walmart parking lot and the two drivers side wheels spin but only the front passengers side spins. Does anyone know if all 4 are supposed to spin. We dont it a couple of times and the same results, the back passenger side wouldnt spin. Thanks.

Manarius · #2 12-14-2010, 06:47 AM

It should be the other way around: One in the front should spin while both in the back should spin.

The front differential is open, so the one with the least resistance is going to spin. The rear differential is LSD, so after a little bit of one spinning, they both should start to spin.

Also, if you have nearly bald all-season tires I wouldn't expect your car to be going much of anywhere. AWD is good, but bad tires make AWD worthless. You might as well be driving a FWD car with bald tires.

jeffs92svx · #3 12-14-2010, 03:30 PM

Actually it went really good. I dont know whey but both front and the drivers side rear spins and that it. Anyone else know of anything it could be or if it is normal.

92 SVX · #4 12-14-2010, 04:31 PM

Quote:

Originally Posted by jeffs92svx

Actually it went really good. I dont know whey but both front and the drivers side rear spins and that it. Anyone else know of anything it could be or if it is normal.

the reason the rear might not be locking is something wrong inside the rear diff.
these are not mechanical limited slip diffs. the oil used might be gone or bad. I think they also use clutch disks and if they are toasted that might do it.

1986nate · #5 12-15-2010, 05:20 AM

read the next post by me as I wasn't thinking clear when i typed this one out

jeffs92svx · #6 12-15-2010, 06:18 AM

Quote:

Originally Posted by 1986nate

The rear LSD inside the rear diff is mechanical. The transfer clutch in the transfer that controls power going to the rear is adjusted by the amount of throttle, slip from the front tires, etc but he has 1 tire in the rear spinning, meaning the rear is getting power.

So, is that the way it is suppose to be.