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neanderthal

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  • Lexus Model
    sc400

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  1. Since the gear grinding is only in first and second gear, it sounds like the problem is in the synchros of the transmission. If it were the clutch not fully disengaging it would happen in all gears, and the clutch pedal would be squishy and the friction point would be very near the floor. That means the transmission needs too be rebuilt or replaced. But the mechanic was right, usually trannys can go a long time with this problem.
  2. Hey guys I have had my 92 sc400 for a little while now, and now I am having a drivetrain issue. It started as trouble getting the tranny to downshift when I stepped on the throttle. Sometimes it would happen and other times no. As the problem got worse, it would eventually never shift down after it had upshifted from accelerating from a stop. I couldn't even get it to change to a lower gear even if i slid the gearshift to a lower gear manually. Finally, on a road trip, the car started to slow. When I got on the throttle, it behaved as if it were in neutral. The engine would rev, but no power to the wheels. So that is the story now. I can start the car, put it in gear, and nothing. Sometimes the car will lean forward a little, like it is trying to move (or move a tiny bit backwards, if it is in reverse), and make a little sound from the tranny. Sort of like something is partially engaged, or trying to engage. I have good experience with manual trans, but i've never messed with an automatic I am some experience with auto mechanics, but I'm no expert Any advice would be greatly appreciated
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