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

Im completely stumped :(

Thread Tools
 
Search this Thread
 
Old May 23, 2011 | 02:24 AM
  #21  
HDtech's Avatar
Teching In
 
Joined: May 2011
Posts: 1
Likes: 0
Default

When is the last time the pan has been off the trans? Have you checked the fluid? Does it smell burnt or anything? It could be that someone left out a checkball or spring when/if the valve body was out.
Reply
Old May 23, 2011 | 06:49 AM
  #22  
Vince B's Avatar
Moderator
iTrader: (1)
 
Joined: Sep 2005
Posts: 8,633
Likes: 0
From: Bloomingdale Illinois
Default

Do you have a MIL light on for a transmission code? In some cases a transmission code will put your trans into a high line pressure condition. When this happens the shifts become much more noticeable and this might be your issue. If not I would assume that either your trans has a shift kit installed or the pressures in your computer might have been altered. HTH Vince B
Reply
Old May 23, 2011 | 11:54 PM
  #23  
Nando92's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2011
Posts: 128
Likes: 0
From: NJ
Default

only 14,5xx miles on trans, no MIL lights, no burning smell...
maybe the owner before me put on a shift kit or something..
Reply
Old May 24, 2011 | 07:05 AM
  #24  
SS SLP2's Avatar
11 Second Club
iTrader: (8)
 
Joined: Jan 2002
Posts: 1,782
Likes: 0
From: SILSBEE TX
Default

I also think " high line pressure " have your tuner check it, as he /she may have upped it while tuning, or go to a good trans shop and have it scanned
Johnny
Reply
Old May 24, 2011 | 05:03 PM
  #25  
Elthesh's Avatar
Launching!
iTrader: (1)
 
Joined: Jan 2010
Posts: 238
Likes: 1
From: Fort Lauderdale
Default

On my 99Z, the tranny was built and setup for hard shifts all the time, so just cruising from a light, on the 1-2 shift, the shifts were so hard that they literally knocked your foot off the accelerator.
Reply




All times are GMT -5. The time now is 05:26 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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