C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Auto Tranny Squeal

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Old Jun 20, 2001 | 12:35 AM
  #1  
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On hard acceleration, my 88 auto makes a short "squeal" as it shifts from 1st to 2nd and again from 2nd to 3rd. Sounds just like a belt slipping for a second, but it seems to be right at the moment the tranny shifts. This only happens on very hard acceleration. Car is bone stock and only 12K miles. Tranny? Rear gears? Ideas?

Thanks.

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Old Jun 20, 2001 | 12:35 PM
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From: Big D Tx
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hahahaha. this isnt your tranny guy. this is your tires spinning. its cause youve "GOT TORQUE?
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Old Jun 20, 2001 | 12:37 PM
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From: Big D Tx
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btw this is normal. my 88 z52 does it too. all you gotta tell people is your car has ***** and it breaks the back end loose on the 1-2 shift during wide open throttle.
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Old Jun 20, 2001 | 11:34 PM
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My 89 coupe had tranny problems, and i took 3 days of my life( ALL DAY ) to delve into "transmission rebuilding 101 self taught." When i finnished , it did exactly what you are refering to. My tranny only lasted 12k miles after that. I had paid a transmission shop to install the seals on one of the drums inside the tranny , because it required some special tools. After the tranny went out the second time, i had someone else redo it, and sure enuff, they found those seals broken! This is totaly inconclusive to your question, as your car has such low miles, but i suppose it is a possibility.
David
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Old Jun 21, 2001 | 12:09 AM
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My new Potenza RE730s don't slip and slide like the old Gatorbacks did, so as much as I'd love to think I'm chirping 'em between auto shifts, I gotta think that one's a stretch.

lol

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Old Jun 21, 2001 | 12:12 AM
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From: Big D Tx
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i dont know, my pretty much stock L98 with 90k miles breaks loose my new Firehawk SZ50 285's on the 1-2 shift.
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Old Jun 21, 2001 | 05:34 PM
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Of course your car will break the tires loose on the 1-2 shift. Mine will too. I had never heard a transmission squeel like this prior to mine doing it either, but it would make the same noise on a wet road. So it definatly was not the tires!
David D
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Old Jul 22, 2001 | 09:41 AM
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mine makes a sqeel when it shifts from 1-2 and 2-3 under hard acceleration... Definetly not the tires breaking loose...I can tell when that happens. Mine an 88 vette with 65000 miles.

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Old Jul 22, 2001 | 12:21 PM
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Last night was first time I've dropped the car to WOT from a standstill to see how she would do (shortly after a light rain), had to show it off a little

That breaking loose between the shifts is fun as hell ;P Hrmm I do wonder how people drive cars with like double the horse power as it's scary enough as is.
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Old Jul 22, 2001 | 01:24 PM
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Mine also squeels from 1st to 2nd. I just thought she was screaming for more.
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