The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-28-2013, 01:23 AM   #1
86 Silver
Registered User
 
Join Date: Jun 2011
Location: Minot, ND
Posts: 36
700R4 Tranny Issue

I've had it into a tranny shop and they adjusted TV cable & changed oil. Also an accumulator valve was plugged so they fixed that. No change in issue. No shift kit installed.

My tranny issues?

1. Tranny constantly downshifts for any incline no matter how severe to maintain speed.

2. Tranny slams from 1st to 2nd gear. Letting off of throttle eases slam, but steady acceleration always causes loud "KACHUNG" and you can feel it hit 2nd.

Ideas?
Posted via Mobile Device
86 Silver is offline   Reply With Quote
Old 02-28-2013, 01:29 AM   #2
rs74
Senior Member
 
rs74's Avatar
 
Join Date: Jun 2010
Location: Illinois
Posts: 2,957
Re: 700R4 Tranny Issue

It has been a few years since I worked at a tranny shop but don't these have to have the line pressure set. Too much line pressure will make a hard shift but not sure if this trans is one of them.
__________________
Roy
85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818

1987 R10 shortie
rs74 is offline   Reply With Quote
Old 02-28-2013, 04:28 AM   #3
piecesparts
Parts and more parts
 
piecesparts's Avatar
 
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
Re: 700R4 Tranny Issue

If your accumulator port is plugged the shift to second will be extremely hard, also
__________________
Frank
piecesparts is offline   Reply With Quote
Old 02-28-2013, 05:49 AM   #4
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: 700R4 Tranny Issue

http://www.transmissioncenter.net/

These guys have gotten three transmissions between me and my freinds. Give em a call and they can tell you what's up for sure.
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Old 02-28-2013, 12:30 PM   #5
86 Silver
Registered User
 
Join Date: Jun 2011
Location: Minot, ND
Posts: 36
Re: 700R4 Tranny Issue

One more issue. 4th gear usually doesn't exist...unless im climbing a mountain straight up!
Posted via Mobile Device
86 Silver is offline   Reply With Quote
Old 02-28-2013, 01:12 PM   #6
silvereagle07
Registered User
 
silvereagle07's Avatar
 
Join Date: Sep 2008
Location: Bailey, NC
Posts: 2,462
Re: 700R4 Tranny Issue

Take a look at this article. It may help. http://www.tvmadeez.com/article/part3.php
__________________
Jeramy

'84 GMC project truck
'85 Chevy 4X4 SOLD
'07 Chevy Trailblazer SS

5th Annual SHPHC Car/Truck Show Pics
http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT
silvereagle07 is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 05:52 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com