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

700r4 woes. Won't engage any gears.

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Old Mar 25, 2007 | 05:40 PM
  #1  
mike1986fyrbird's Avatar
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Joined: Feb 2002
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From: Prince Albert, Saskatchewan, Canada
Car: 1987 Trans Am GTA
Engine: 357ci Stealth Ram - Under Pressure
Transmission: Built 700r4/Pro Yank 3400 Extreme
Axle/Gears: 9-Bolt 3.27
700r4 woes. Won't engage any gears.

I was accelerating about half throttle and then it felt like the car went into neutral.

No gears work. It just revs like it's in neutral. Only park works.
Converter is spinning. The bolts didn't come loose.
Showed no signs of slipping or any other problems prior to this.
It had a stock rebuild before I bought the car. Probably 20,000 on the rebuild. Fluid still looks brand new and doesn't smell burnt.

I'm going to assume the Transmission pump broke. I removed one of the cooler lines from the radiator and fired it up and went through the gears - no fluid came out of the line.

If the pump broke and didn't supply pressure/fluid is it likely that it took the rest of the Transmission out with it? or can I get away with just replacing the pump?


Thanks.
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Old Mar 29, 2007 | 12:55 PM
  #2  
mike1986fyrbird's Avatar
Thread Starter
Supreme Member
 
Joined: Feb 2002
Posts: 1,036
Likes: 0
From: Prince Albert, Saskatchewan, Canada
Car: 1987 Trans Am GTA
Engine: 357ci Stealth Ram - Under Pressure
Transmission: Built 700r4/Pro Yank 3400 Extreme
Axle/Gears: 9-Bolt 3.27
Re: 700r4 woes. Won't engage any gears.

I'm trailering it back home and taking the transmission out this weekend.
Any input?
Thanks.
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Old Mar 30, 2007 | 01:27 AM
  #3  
89Nighthawk's Avatar
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Joined: Jun 2005
Posts: 266
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From: Texas
Car: 89 GTA Nighthawk
Engine: 389 CID Vortec TPI
Transmission: TCI 700R4 w/Vigilante
Re: 700r4 woes. Won't engage any gears.

Front Pump. Just repaired my daughters, same symptoms. Oh, and the front pump fragged because the valve body gasket cracked, allowing line pressure to go places it's not supposed to go.
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Old Mar 30, 2007 | 11:47 AM
  #4  
Gramps's Avatar
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Joined: Nov 2006
Posts: 830
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From: Victoria BC Canada
Car: 87 Camaro IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.23
Re: 700r4 woes. Won't engage any gears.

umm...did you buy that tranny off the internet or is that still the origional tranny but w/ a shiftkit?
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