700R4 problems
Burning Brakes
Joined: Dec 2003
Posts: 1,183
Likes: 1
From: MidOhio
Originally Posted by Randy93
It could also be the impellar, I had mine go out on my van and it had the same symtoms.
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Originally Posted by tonymax2
Me too-about 2 years ago ('86 Astro)-only I don't know exactly what in the TC crapped out. My buddy the tranny man said one of the elements has an aluminum disk with a steel hub and the disk fails. Then the rotating hub shreds the disk and pollutes the trans with aluminum particles. Only fix is to pull it all apart, clean it out, new TC and a filter on the return line from the cooler. I had to pull the govenor out twice after the rebuild and free it up and it still never shifted quite the same but was reasonable enough to keep driving. The van has over 300K on it now.
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 1,019
Likes: 1
From: Weymouth Dorset
I love this forum cos there is so much usefull info and knowlege here.
I will get teh box out later on and I will keep everyone updated as to what the outcome is.
Thank you for all of your thoughts and advice
.
I will get teh box out later on and I will keep everyone updated as to what the outcome is.
Thank you for all of your thoughts and advice
.
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 1,019
Likes: 1
From: Weymouth Dorset
Update
Got the tranny out and after taking the torque converter off the tranny and looking inside it looks like its the TC has broken up, in the circled area there is a bit missing 
Now it is time to find a new TC and i was thinking of one with a higher stall somewhere around 2200/2400 what do you all think
.
Now it is time to find a new TC and i was thinking of one with a higher stall somewhere around 2200/2400 what do you all think
.
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
Hi Adi, Sorry about tranny failure please let me know any updates using my PM, Cuz i got the same problem just few minutes ago, this is rebuilt tranny from Mad Dog with hard parts, they installed 2800 rpm TC at the same time.
I got exactly same problem just like yours, it rev high between 3000-4000 rpm to just move barely 15-20 mph speed in any gear, No oil leak and i checked oil its perfectly levelled may be i have the same problem as yours TC, i do have another TC 2200 rpm too. Hope its a TC problem than i can just swap with the one i have spare one. Let me know any updates and i do the same. Good luck for both us.
I got exactly same problem just like yours, it rev high between 3000-4000 rpm to just move barely 15-20 mph speed in any gear, No oil leak and i checked oil its perfectly levelled may be i have the same problem as yours TC, i do have another TC 2200 rpm too. Hope its a TC problem than i can just swap with the one i have spare one. Let me know any updates and i do the same. Good luck for both us.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by adi4
Now it is time to find a new TC and i was thinking of one with a higher stall somewhere around 2200/2400 what do you all think .
.RACE ON!!!
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 1,019
Likes: 1
From: Weymouth Dorset
Originally Posted by CFI-EFI
I'd say that unless you can locate every nick, chip, and filing that came off of the old converter, you are risking a new converter as well as your old trans if you don't do or have the trans disassembled, checked and cleaned out. Your symptoms indicated problems beyond what you've pictured.
RACE ON!!!
RACE ON!!!
I have had no problems what so ever with the box until the TC broke and I hav'nt driven the car since then, when the TC broke up I still had all of the gears inc the lockup it was just that you had to rev the car up higher it was just like a 4000 stall TC
.
Le Mans Master
Joined: Aug 2002
Posts: 7,441
Likes: 421
From: Ventura County, CA
St. Jude Donor '05 thru '24
Ahh man I really hope a new torque converter is going to be your fix. Im having the same problem with my 97 Camaro so I posted for help on Camaroz28 here is a link 
Help is appreciated!
I also have to rev her up to get her to move, I am not driving the car anymore needless to say but it's such a downer
GoodLuck with the car....Keep us informed
Help is appreciated!I also have to rev her up to get her to move, I am not driving the car anymore needless to say but it's such a downer
GoodLuck with the car....Keep us informed
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