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1994 sc 400- car jerks hard when shifting into drive or reverse

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Old 03-07-03, 10:12 PM
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almariam
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Angry 1994 sc 400- car jerks hard when shifting into drive or reverse

I have a 1994 Sc 400. Lately, after I had the seals changed, I began noticing a hard jerking movement of the car when I shift into Drive or Reverse. It feels like the idle is high, but when I check it, especially when warm, it does not seem to be high, around 500-6-- rpm. I was told the hard jerking shif t in the transmission may have something to do with a solenoid which is sending the wrong information to the transmission. Does anyone have any ideas on what I can do to take of the problem thanks for your help. (You may also send comments to al_mariam123@yahoo.com)
Old 03-08-03, 12:30 AM
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GreddyEddy
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Check the rear tranny mount or maybe incorrect fluid (toyota trans fluid)
Old 03-08-03, 09:40 AM
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DaveGS4
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Al - I'm moving this to the SC forum (you accidently posted in GS forum).

Good luck.
Old 03-08-03, 10:04 AM
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undefeatedsc3
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Default Argh, Transmission jolts, please help

Allright guys,
When driving home from the bank today, my sc300 auto started jumping when changing gears (1st, 2nd,3rd, etc.) Its just not a smooth shift, very aggrivating. Feels like someones just dropping the clutch, if it were a manual. Upon more inspection, I realized it is doing it in reverse as well. Can't find any leaks, just had tranny serviced two weeks ago too.... Has anyone else had this problem? Fix?
Old 03-08-03, 10:15 AM
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pcmw
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Call the shop that did the tranny fluid change and make sure they used the Toyota fluid recommended for your transmission. You may also want to reset the ECU, it may help and would not hurt.

Does it happen in both tranny modes and w and w/o overdrive?

MW
Old 03-08-03, 11:14 AM
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undefeatedsc3
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Yeah, tranny was serviced by Toyota dealership, just reset the ECU Ill see if it helps later when I go out and check driving with o.d. off... Anybody think of anything else theyve heard of?
Old 03-10-03, 07:18 PM
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London Bill
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Originally posted by undefeatedsc3
Yeah, tranny was serviced by Toyota dealership,
Maybe so, but did the dealer use Toyota Type4 fluid? Ask them which fluid they used on your box.
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