Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

ongoing nightmare with a buddy's truck

Thread Tools
 
Search this Thread
 
Old Mar 27, 2011 | 04:42 PM
  #1  
rumblebox's Avatar
Thread Starter
TECH Fanatic
iTrader: (9)
 
Joined: May 2005
Posts: 1,602
Likes: 1
Default ongoing nightmare with a buddy's truck

ok here's the story from day 1.

it's a 150k mile 2002 Z71 with a 5.3 and 4L60. the trans was replaced with a 2003 unit around 100k miles.

my friend tells me his transmission went out, and a shop was going to charge him $3500 to replace it. i was like **** that. i'll do it, because at this point i can pretty much do a 60e swap with my eyes closed and one hand behind my back.

i find a guy to rebuild it who seems pretty reputable(undisclosed until the issue is officially resolved or unresolved). so i just buy one of his trannies and exchange the bad one as a core. note: i did flush the cooler before installing the new one.

i get the new trans in the truck and fill it. it immediately slips in forward and reverse... once it gets warm it wont move, pukes fluid out from the front and back of the case and blows the dipstick tube out..... i take the tranny back out and exchange it again for the OLD transmission that originally came out of the truck which he rebuilt. he said the sprag and planetaries had totally come apart and destroyed everything, so he replaced everything inside. so i install the freshly rebuild old one which still slips in reverse and wont shift correctly. sometimes it starts out in 1st and bangs 2nd immediately then stays in 2nd or 3rd. it's hard to tell since he has 35s on it, and i dont know what final drive he has. i'm finally like wtf and hook up my scanner to find a "shift time solenoid" code present. i have no clue from which transmission this code was set. at this point we both ran out of time and patience and will resume this fiasco next month when we get back from training.

Last edited by rumblebox; Mar 27, 2011 at 11:02 PM.
Reply
Old Mar 27, 2011 | 11:07 PM
  #2  
Jays_SSZ28's Avatar
Banned
iTrader: (2)
 
Joined: Aug 2009
Posts: 2,223
Likes: 56
Default

What did you use for a torque converter?
Reply
Old Mar 27, 2011 | 11:26 PM
  #3  
rumblebox's Avatar
Thread Starter
TECH Fanatic
iTrader: (9)
 
Joined: May 2005
Posts: 1,602
Likes: 1
Default

my old stocker. it's fine.
Reply
Old Mar 28, 2011 | 06:15 PM
  #4  
Jays_SSZ28's Avatar
Banned
iTrader: (2)
 
Joined: Aug 2009
Posts: 2,223
Likes: 56
Default

So you took a converter out of a transmission that destroyed the sprag and planetaries?
And you don't think theres any metal contamination coming out of it?

Get another rebuilt transmission, WITH a new converter, and flush the cooler or replace it.
Reply
Old Mar 28, 2011 | 09:00 PM
  #5  
rumblebox's Avatar
Thread Starter
TECH Fanatic
iTrader: (9)
 
Joined: May 2005
Posts: 1,602
Likes: 1
Default

no. i used MY old stocker from my car. not the one out of his truck.

Last edited by rumblebox; Mar 30, 2011 at 10:20 AM.
Reply
Old Mar 28, 2011 | 11:57 PM
  #6  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

Sounds like this guy doesn't know how to build trannies.
Reply
Old Mar 30, 2011 | 10:15 AM
  #7  
rumblebox's Avatar
Thread Starter
TECH Fanatic
iTrader: (9)
 
Joined: May 2005
Posts: 1,602
Likes: 1
Default

im beginning to think so. i cant think of an electrical problem that would make the trans slip in reverse but not forward.
Reply




All times are GMT -5. The time now is 02:44 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE