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newb help with harsh shifting

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Old Jun 14, 2007 | 10:09 PM
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Default newb help with harsh shifting

this started about 3 days ago, when I WOT and my car shifts automatically (A4) I feel the shift a lot stronger and almost like something is bumping up. It has never shifted this hard, you feel the car tug back and it sounds a lot harder, please help.
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Old Jun 14, 2007 | 10:13 PM
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Well while there are several reason why it may shift harder are you sure you dont have a broken mount orloose torque bar, And its rather rare someone complains there A4 shifts to hard lol
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Old Jun 14, 2007 | 10:24 PM
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all I know is when I WOT and I feel the car shift it has changed dramatically from about a week ago, before you would just hear it shift and barely feel it and now you definetly feel it (as if the car tugs a bit) and I feel a bumping feeling from under my seat.
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Old Jun 14, 2007 | 10:35 PM
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Well you could have a broken mount but I will say most camaro trans I have ridden in that were in good shape even stock with the stock converter had a decently firm shift under throttle , I would be more worried if I had one that was real smooth
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Old Jun 14, 2007 | 10:47 PM
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hmmm i see, just wondering how serious is a broken mount and how much would it be to repare. The car is in great shape and just crossed over the 50,000 miles line, I have yet to change the transmission fluid (not sure if previous ower has). Also what would you consider a firm shift, sorry for the newb questions, I am like Tom Cruise in Days of Thunder lol I can drive with the best of them but just don't know **** about the mechanics lol
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Old Jun 14, 2007 | 10:52 PM
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Well you should feel a nice but not to much of a slam bump on each shift if all is well , Mounts cheap you will pay mostly labor
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Old Jun 14, 2007 | 10:53 PM
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my A4 shifts harder at 3/4 throttle then at WOT. but thats the way most of my autos always have been. from TH350 an TH400s to this 4l60e. unless i had a valvebody all done and a crazy stall.

sounds like the mount is broke like everyone said...but that dont explain the hard shifts.
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Old Jun 14, 2007 | 10:55 PM
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how much will labor on a tranny mount cost

any ideas on the hard shifts SMALLBLOCKHERO
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Old Jun 14, 2007 | 11:01 PM
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between the tranny hittin the floor and the angle of drivshaft when it shifts... could be the reason it feels like that. maybe the tranny lines are pinching causing a fluid pressure surge. these are just wild guesses of course.
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Old Jun 15, 2007 | 09:00 AM
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Check if the PCM has set any DTC's for the MAF or IAT sensors.

Monitor those sensors with a scantool to verify they are reading sensible values.
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Old Jun 15, 2007 | 09:51 AM
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thanks guys any more suggestions are welcomed
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Old Jun 15, 2007 | 07:23 PM
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the TPS will cause a harsh shift too if it is glitching out
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Old Jun 16, 2007 | 01:02 AM
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lifted her up today, defenitly need a new tranny mount
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Old Jun 16, 2007 | 09:04 AM
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Sounds like you may have found your issue
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Old Jun 16, 2007 | 05:09 PM
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the new mount is in and normality is a beautiful thing, thank for all you help guys, especially you performabuilt. Wow still to thid day the best mod I ever did to my car is the LS1tech MOD
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Old Jun 16, 2007 | 05:14 PM
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Any time and your always welcome and the LS1TECH MOD is a very good one.
Originally Posted by ICEMAN 31
the new mount is in and normality is a beautiful thing, thank for all you help guys, especially you performabuilt. Wow still to thid day the best mod I ever did to my car is the LS1tech MOD
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