Tranny shift problems. - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 08-08-2003, 01:22 AM
Member
 
Join Date: Jul 2003
Location: Jeanerette, La
Age: 32
Posts: 71
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Red face Tranny shift problems.

I originally started a post about the servo but decided it better to start a new one and try to explain what the car is doing so maybe someone can give me an idea what they think is going on. I have an 87 camaro iroc z/z28 with 5.7 350 tuned port injection with a 700r4 transmission.The car had sat for a while before i got it and the transmission was b-s, not shifting out of first hardley at all and couldent manuel shift it out of first either. Had park, reverse and neutral but first was all that it would go into and once in a blue moon when messing with it could get it to go into second and 3rd when went into 3rd around 55mile pr hour when 3-4 shift was time it would jump into neutral and have to get off the gas and let the car idle down and then get back on and be back in 3rd gear. Same with overdrive if you punched it in ANY gear it would jump to neutral. Like crosley said , the 3/4 clutches were bad so we replaced them, along with all the rest of the clutches and metals , they were all shot, and the sprag was still in great condition. Now that all clutches are replaced and new seals, the car will go into gear and sometimes it will shift normally into all gears from the overdrive position , when in 4th and punch it takes about a second for it to kick back down into passing gear. Also most of the time you have to manuel shift the gears. Also in first a couple of times id put the shifter into the first position and it would shift from first into second like i had it in the od or drive position. I am trying to get some ideas as to what might be the problem. Also when in OD or D and in 4th gear when you slow way down like to turn or something it wont kick back down gears and go back to first or second and it will take off from 10mph or so from 4th gear, other times it will shift down like its supposed too. All the transmission fluids are fine. Sometimes also when slowing down and its supposed to be downshifting and it isent you can pull it down into second gear or first gear and it wont go it stays up in fourth or 3rd. Any advice will be greatly appreciated

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-08-2003, 08:18 AM
tnsmith10's Avatar
when will it rain???
 
Last photo:
Join Date: Jul 2003
Location: where its very dry and dusty
Age: 43
Posts: 1,297
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
ur 700r4

did u go through the valve body on that thing when u dug into it and replaced those bad parts??? 1st thought that comes to mind is contamintaion. cooler shoulda been flushed, and valve body cleaned and freed up. the description ur giving tells me that the t.v. valve is stinking. if not the shift valves themselves. when u get that much metal run through a 700r4 with the small fluid passages that it has., its best to try to go back in with everything as clean and as free as possible. id also recommend a bottle of red lubeguard... we like to call it many things at work, in this case... a bottle of repeated shifts... hehehe gl
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-08-2003, 08:42 AM
67 Nova 400sbc.4L60
 
Join Date: Feb 2003
Location: Windsor Ontario Canada
Posts: 110
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
700 R4 Trans complaint

Because of all the upshift downshift complaints I think I would remove the governor first to verify it is not stuck .It is easy to do Just pop off the tin can on the left side of the case (drivers side) and turn the governor upside down so the gear faces up and shake it up and down to see if the valve that is inside it is free to move back and forth. If it is free then I would do an oil pressure test. .
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-08-2003, 05:58 PM
adtkart@aol.com
 
Last photo:
Join Date: Oct 2002
Location: Newport News, VA
Posts: 3,220
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I would tend to feel, like Paul does, that the problem is related to the governor, since it is a problem with down shifts. The upshifting alone, with no problem downshifting, would point me toward the valve body. I do have to agree that the valve body should have been cleaned when it was apart, along with flushing everything.

This is a common problem when people do their own transmission work. The average mechanically inclined person that decides to work on their own transmission does not do the small things that are needed. They are in a hurry to get it back in and see if it works. If a person rebuilds an engine, they are likely going to try to keep everything clean. Actually with an automatic transmission it is more important to keep it clean. That includes everywhere the fluid travels, like the valve body, convertor, and cooler.

I also do not believe in adding any "magic" fluids to the trans. They are designed to work with ATF only!
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-08-2003, 08:19 PM
airworld2's Avatar
Member
 
Last photo:
Join Date: Mar 2003
Location: houston texas
Posts: 583
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
700 shift points

god I love this you spend 50 post building this 700 and now as normal it just doesnt work right ( what do I do now) stop thowing good money after bad let the pro fix it right. that would be a good transmission shop in you area........
__________________
airworld2

Last edited by airworld2; 08-08-2003 at 08:27 PM.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-09-2003, 01:28 AM
Member
 
Join Date: Jul 2003
Location: Jeanerette, La
Age: 32
Posts: 71
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
yea if i had a thousand extra i would have done that already unfortunatley i dont and if i did i wouldent be letting these people work on it id bring it somewhere out of town to someone who specializes in chevy tranny because the people around here act like they dont know ***** from piss ....
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 08-09-2003, 05:52 PM
Member
 
Last photo:
Join Date: Sep 2002
Location: USA
Posts: 490
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
I agree with the governor also, did you clean it?
Did you replace the converter?
Did you flush the cooler?
Did you clean (or even check) the governor thimble filter?
I believe I suggested a governor problem in one of the first posts, and now we're back to a governor problem again. Maybe the problem was never corrected during the rebuild or the garbage from the converter and cooler contaminated the new rebuild.
And BTW making a new post for every problem makes it very difficult to keep track of whats going on.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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 -6. The time now is 09:39 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.