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HEEEELP! My 90 Lego wagon wont go into any gear at all!
Posted 25 September 2013 - 05:06 PM
Posted 25 September 2013 - 05:58 PM
What year is your car? Is it awd or fwd? To me, if the speedo is going up with the revs, you have a stripped out axle.
Posted 25 September 2013 - 06:07 PM
Posted 25 September 2013 - 06:50 PM
^not so true.. I broke the front diff on a 4EAT once and all it did was show me doing 120 MPH standing still and it only took like 4K RPM..
Posted 25 September 2013 - 06:51 PM
Not necessarily. Is yours Manual or automatic? My 90 manual will not move without its rear driveshaft installed. And the automatic, since it is not truly "fulltime", will not move unless the TCU engages the rear drive.
If an automatic, if you unplug the TCU it should put the tranny into a default mode, which should include locking the drive to the rear wheels.
Posted 25 September 2013 - 07:04 PM
Posted 25 September 2013 - 10:42 PM
It would be nice to know if this is a manual or automatic transmission. I am assuming that it is an automatic from your reference to "drive". PLEASE clarify.
Without knowing what is broken, and how that breakage would affect roadworthiness, I would not chance it. It would be useful to know if part or all of one front axle turns when you try to make the car move forward.
If and only if it is safe to do so, and with one foot firmly on the brake pedal, have someone observe the axles through the engine bay while you try to drive forward. The likely possibilities are:
- both axles stay completely still, or
- the inside portion of one axle moves while the rest does not move, or
- both the inside portion and the central shaft move but the outer portion does not move, or
- the entire axle moves but the wheel does not.
Posted 26 September 2013 - 12:35 AM
if its automatic it may be transmission slipping, or not engaging into gears because there is no hydraulic pressure to the valve body of the transmission, hence it could be clogged with deposits. Check the RPMs when shifting to D, 3, 2, 1, and reverse, and as Eeyore said the TCU may be acting up as well.
Posted 26 September 2013 - 09:51 AM
broken axle ? any line preshure try pinching the line and see if it pushes back sheared pump shaft ?
Posted 26 September 2013 - 01:53 PM
Front final drive is turning (speedometer is reading something other than zero), so transmission core should not be the issue.
Posted 26 September 2013 - 03:37 PM
Posted 26 September 2013 - 05:08 PM
Almost has to be axle splines. Transmissions just don't work fine one second then not work at all.. splines do that (spoob the bed all at once) another thing, if the speedometer is working the tranny, viscus clutch and all of the is working fine... start checking axle splines at both the wheel hub end and the differential sides
Posted 26 September 2013 - 05:18 PM
it does sound like a bad front axle,
but it would have to also have a bad AWD transfer clutch
or rear axle or some part to eliminate power to the rear.
Edited by johnceggleston, 26 September 2013 - 05:19 PM.
Posted 27 September 2013 - 07:02 AM
just bumping it into neutral wont hurt anything. either - if you were completely stopped, even bumping it into reverse wouldnt/shouldnt hurt it...there is definitely something going on with axles/driveline.
I would get the car safely up on jackstands, start it, put it in gear, and start looking for what is turning/not turning.
Also make sure the linkage is connected and working - it could possibly have popped the shift linkage?
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