th 400 - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > Brand Specific Tech > Chevy
Notices

Reply
 
Share Thread Tools Display Modes
Old 11-28-2007, 03:50 PM   #1 (permalink)
Registered User
 
Join Date: Feb 2006
Member # 68123
Location: Columbia,ms
Posts: 25
th 400

Changed the fluid and screen in my th400 a few weeks ago. I haven't ran it since the service. I cant remember how much fluid I put in exactly. Fluid is at the top of the hot full mark while idling. Transmission ran fine before. Now there is fluid coming out around torque convertor at high RPMS. Anyone have any suggestions to what the problem is or any solutions.
rdnek8 is offline   Reply With Quote
Old 11-28-2007, 04:06 PM   #2 (permalink)
Rock God
 
florida4x4's Avatar
 
Join Date: Sep 2002
Member # 13645
Location: home of the wayward HEI
Posts: 1,520
Blog Entries: 1
front seal?
__________________
1972 GMC Submarine
383 / Quadrajet / TH350 / Dubblah / D60 / 14FF / 42's on Stazworks / heavy foote / four eyez / four nicator
1997 GMC K3500 Suburban
TC76 L33 / 4L80E / HP60 SAS / PROJECT TOWHOE
"If it flies, floats or fawks, rent it..."
florida4x4 is offline   Reply With Quote
Sponsored Links
Old 11-28-2007, 05:58 PM   #3 (permalink)
Registered User
 
Join Date: Jun 2006
Member # 73673
Location: Kelowna BC Canada
Posts: 850
sounds like a front pump bushing to me thats what happend to my 700R4 when i blew her up puked all the atf out the front ...
Stout Racing is offline   Reply With Quote
Old 11-28-2007, 06:07 PM   #4 (permalink)
Granite Guru
 
Backncardr's Avatar
 
Join Date: Nov 2003
Member # 24747
Location: Woodland, CA. & Mokelumne Hill, CA.
Posts: 564
Make sure the trans breather vent is clear and not blocked.
Backncardr is offline   Reply With Quote
Old 11-28-2007, 06:28 PM   #5 (permalink)
Registered User
 
Join Date: Feb 2006
Member # 68123
Location: Columbia,ms
Posts: 25
The vent tube is not blocked and is clear of any obstructions. It is not a lot of fluid just pouring out. It is a stream about the size of a pencil lead and it only happens above ~ 3500RPM. I was just wondering if this a symptom of too much fluid.
rdnek8 is offline   Reply With Quote
Old 11-28-2007, 06:30 PM   #6 (permalink)
Registered User
 
Grumpy_old_fart's Avatar
 
Join Date: Jun 2003
Member # 20147
Location: Oakland Orygun
Posts: 6,573
Send a message via Yahoo to Grumpy_old_fart
seals fucked.

start there.... if you get to the seal... well, you gotta pull the converter

if you find the front seal the bad part, change it... if you pull the converter and the bushing has seized to the hub, replace the pump, because it probably wont hold a new bushing, either.

start at the seal.
__________________
Empathy, apathy, sympathy.
Sympathy is between shit and syphilis in the dictionary.

Last edited by Grumpy_old_fart; 11-28-2007 at 06:31 PM.
Grumpy_old_fart is offline   Reply With Quote
Old 11-28-2007, 06:33 PM   #7 (permalink)
Granite Guru
 
Backncardr's Avatar
 
Join Date: Nov 2003
Member # 24747
Location: Woodland, CA. & Mokelumne Hill, CA.
Posts: 564
Could be. The fluid level in the has to be even with the pan rail when full. Drop the pan and check the stick against the pan rail on the case-remark if necessary. If ok time for a new front seal and/or new pump o-ring. Be a good time to replace the pump bushing as well and check the surface of the torque convertor hub for scoring.
Backncardr is offline   Reply With Quote
Old 11-28-2007, 06:42 PM   #8 (permalink)
Rock God
 
florida4x4's Avatar
 
Join Date: Sep 2002
Member # 13645
Location: home of the wayward HEI
Posts: 1,520
Blog Entries: 1
also watch for cracks on the front of the converter. they can cause weird leaks.
__________________
1972 GMC Submarine
383 / Quadrajet / TH350 / Dubblah / D60 / 14FF / 42's on Stazworks / heavy foote / four eyez / four nicator
1997 GMC K3500 Suburban
TC76 L33 / 4L80E / HP60 SAS / PROJECT TOWHOE
"If it flies, floats or fawks, rent it..."
florida4x4 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 05:15 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.