AWD problem

subru92svx · #1 08-09-2006, 12:20 AM

I have a 1992 LS-L and while working on my car I had it on a lift. I started the car while in the air, but only the 2 front tires were moving. Is this how it is suppose to be? A bunch of other students at school were tryin to tell me my car was messed up. I called the Subaru dealer near me and explained. They said it was normal, but I don't know. The car does not make any strange noises or anything. The only thing I could think of was about 30,000 miles ago I had a shop fix my differential after I chipped teeth off my ring and pinion. I thought if something was wrong maybe they messed something up while they were working on it. Do all four wheels spin when your SVX's are in the air and running? Would appreciate any feedback. Thanks

SSSVX · #2 08-09-2006, 01:40 AM

yes 4 wheels should be spinning for an awd SVX when it's lifted up in the air...

that means your awd is not working. maybe your transfer clutch is gone or something is not right on drivetrain......is your "green power light" blinking after you start up your SVX?

subru92svx · #3 08-09-2006, 02:32 AM

Yeah my "green power light" blinks when I start my car, but goes out after a few seconds along with all the other lights. Is there someway I can pinpoint what is wrong?

Earthworm · #4 08-09-2006, 10:39 AM

Does the power light also blink when the wheels are on the ground?

If so check the error code generated by the TCU using the instructions found on http://svx-iw.com in the SVXipedia.

This is just another reminder for me to scan the FSM on the list of inputs the TCU uses to determine when to transfer power to the rear wheels.

My dad found out that if you unplug the TPS all 4 wheels will spin in the air. The TCU, when seeing 0% throttle, sees no need to send power to the rear wheels.

redsvx94 · #5 08-09-2006, 05:47 PM

Yes, This is also what I found when i took my car in a transmission shop. The rear wheel won't spin under idling but it will spin as soon as one steps on the throttle.

oab_au · #6 08-09-2006, 06:02 PM

Quote:

Originally Posted by redsvx94

Yes, This is also what I found when i took my car in a transmission shop. The rear wheel won't spin under idling but it will spin as soon as one steps on the throttle.

Try it on a slippery surface, like wet grass or gravel, get some one to watch from the side to see if the front wheels spin only, or all spin.

Harvey.