Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Engine redlines when i hit 30-40 mph...

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Old Apr 28, 2011 | 11:13 PM
  #1  
Louie26's Avatar
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Joined: Apr 2011
Posts: 8
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From: Marysville, CA
Car: 1990 RS
Engine: 305 TBI (for now..)
Transmission: 700r4
Engine redlines when i hit 30-40 mph...

As soon as i hit somewhere between 30 and 40 mph my car will stop accelerating and the engine will rev up and redline, but i wont be goin anywhere. it also wont shift into 3rd. It has a 700R4 in it... any thoughts? thanks in advance.

Last edited by Louie26; Apr 30, 2011 at 07:56 PM.
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Old Apr 28, 2011 | 11:39 PM
  #2  
88 5.7 Iroc-Z's Avatar
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Joined: Nov 2009
Posts: 415
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From: Pasco, WA
Car: 88 Iroc Z, 00 SS
Engine: 5.7 HSR, 5.7 LS1
Transmission: 700r4, T56
Axle/Gears: 3.23, 3.42
Re: Engine redlines when i hit 30-40 mph...

tranny is slipping maybe?
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Old Apr 29, 2011 | 02:05 AM
  #3  
Bullydawg's Avatar
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iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: Engine redlines when i hit 30-40 mph...

Originally Posted by 88 5.7 Iroc-Z
tranny is slipping maybe?
Sounds about right.
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Old Apr 29, 2011 | 07:17 AM
  #4  
DJP87Z28's Avatar
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Joined: Mar 2003
Posts: 4,771
Likes: 15
From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: Engine redlines when i hit 30-40 mph...

Bad transmission......
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Old Apr 29, 2011 | 07:22 PM
  #5  
insomniac's Avatar
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10 Year Member
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Joined: Jul 2010
Posts: 833
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From: The Jersey Shore
Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
Re: Engine redlines when i hit 30-40 mph...

burnt third clutches
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Old Apr 30, 2011 | 07:53 PM
  #6  
Louie26's Avatar
Thread Starter
Junior Member
 
Joined: Apr 2011
Posts: 8
Likes: 0
From: Marysville, CA
Car: 1990 RS
Engine: 305 TBI (for now..)
Transmission: 700r4
Re: Engine redlines when i hit 30-40 mph...

does anybody know if this tranny ( http://sacramento.craigslist.org/pts/2343752956.html )will fit in my car? 1990 RS 305tbi... thanks
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