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post #1 of 2 (permalink) Old 01-07-2007, 08:22 PM Thread Starter
 
Join Date: Jul 2005
Posts: 64
new problems...

So my initial transmission problem was that it had really jerky shifts from 1-2, and sometimes from 4-2. ..

N E ways, I brought my car to a jack-off-all trades type mechanic friend today to change the motor mounts. It took us a while to find out that you have to either lift the motor out or take out the front end in order to do the swap, but in the meantime we had unbolted most of the motor mount brackets, taken off the starter, removed the ac pump and moved some other stuff.

After we put it all back together my transmission problems got weirdly different. Now the 1-2 shift is pretty smooth, delivery seems smoother, the O/D light blinks constantly, and shifts happen much later, at around 4k RPM, even under only moderate throttle.

Also, when I come to a stop, there is a loud, low-pitched humming noise, which ceases after a couple seconds accompanied by a slight lurch forward. There is no shaking or roughness though.

Any thoughts?
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post #2 of 2 (permalink) Old 01-08-2007, 09:43 AM
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Join Date: Jul 2003
Location: St. Louis
Age: 42
Posts: 2,661
I would check for a loose wire harness, and possibly check out the MLPS for your strange shifting issue. The blinking OD light is the transmissions way of saying somethings not right.

Jay

These are highly engineered precision vehicles, the first step in diagnosing the problem is to strike the suspected offending part sharply and repeatedly with a blunt object, then re-test.
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