LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Lock up converter question?

Thread Tools
 
Search this Thread
 
Old Jun 21, 2009 | 02:48 PM
  #1  
slow4.7on20s's Avatar
Thread Starter
On The Tree
 
Joined: May 2006
Posts: 155
Likes: 0
Default Lock up converter question?

--------------------------------------------------------------------------------

I have a 1996 z28 camaro and just got speed shop to put all new seals in the transmisson. Well I picked it up and the engine light was on and I ran a scanner on it and they left a sensor unplugged well I guess its the one for the converter to lockup and its not locking up now since its unplugged and I have been letting my brother drive the car since he dosent have one and I havent had to time jack it up and fix it. With it having a lock up converter and it not locking up will that hurt the converter or transmission?
Reply
Old Jun 21, 2009 | 03:07 PM
  #2  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

Originally Posted by slow4.7on20s
--------------------------------------------------------------------------------

I have a 1996 z28 camaro and just got speed shop to put all new seals in the transmisson. Well I picked it up and the engine light was on and I ran a scanner on it and they left a sensor unplugged well I guess its the one for the converter to lockup and its not locking up now since its unplugged and I have been letting my brother drive the car since he dosent have one and I havent had to time jack it up and fix it. With it having a lock up converter and it not locking up will that hurt the converter or transmission?
There is no sensor that tells the transmission to lock the converter. The transmission receives the signal to engage the TCC solenoid from the main PCM harness that plugs into the passenger side of the transmission (large round plug). Exactly which code did you get?

With the converter lockup feature disabled, your MPG will suffer slightly, and you will also increase your transmission temperatures at cruising speed. This shouldn't be a problem if you have a good cooler, but you definitely want to get it fixed.
Reply
Old Jun 21, 2009 | 07:30 PM
  #3  
slow4.7on20s's Avatar
Thread Starter
On The Tree
 
Joined: May 2006
Posts: 155
Likes: 0
Default

I dont remember the code it gave me. I went and check all the pluges under the car there all connected. I have a good aftermarket transmission cooler on it. All Iam worried about is will I burn up the lockup converter driving it around like this and Iam also not concerned about gas mileage its not my d/d
Reply
Old Jun 21, 2009 | 10:22 PM
  #4  
CamaroRacing12's Avatar
11 Second Club
iTrader: (5)
 
Joined: Apr 2007
Posts: 3,779
Likes: 3
From: Haverhill, Mass
Default

do not drive it in overdrive with no lockup, it will burn the syncros in the transmission. driving it in 3rd gear "D" is fine tho.

your problem has nothing to do with the transmission nor converter. it is ur brake switch on ur brake pedal. it is not engaging. go under there and check it out. the plastic piece is prolly a lil unscrewed and not engaging. screw it back in. (you'll see it) but remember if ur car isnt tuned the lockup mph is 100mph in 3rd gear and 46mph in 4th gear (i believe) the 3rd gear mph lockup can be a headache at the track if it isnt corrected in the tune. this exact same thing happened to me. the lockup acts off the brake switch (weird i know) after numerous calls to my tranny guy and Yank and numerous posts on here i figured it out lol
Reply
Old Jun 22, 2009 | 06:39 AM
  #5  
slow4.7on20s's Avatar
Thread Starter
On The Tree
 
Joined: May 2006
Posts: 155
Likes: 0
Default

i was talking to my buddy who had a 97 trans am same setup im running except he had a 35oo stall converter that wasent a lock up. he was telling me that since mine stopped locking up it is just like his and it will be fine since i have a aftermarket transmission cooler. is there any truth to what he said?
Reply
Old Jun 22, 2009 | 08:40 AM
  #6  
acammer's Avatar
On The Tree
15 Year Member
Photogenic
iTrader: (1)
 
Joined: Mar 2009
Posts: 185
Likes: 0
From: Central NY
Default

I ran for 2 years with no lockup converter in my 700R4 car - it was fine - but it had 3.73's and a 2500rpm converter, it was running at or above stall speed on the highway so it wasn't building too much heat. If you've got a long gear (ie 2.73's) you'll heat things up a lot quicker - especially with a non-stock higher stall converter. Again, if you've got a good tranny cooler, you should be ok.

Originally Posted by CamaroRacing12
do not drive it in overdrive with no lockup, it will burn the syncros in the transmission. driving it in 3rd gear "D" is fine tho.
Auto's w/ syncros? I'm guessing you mean the clutch-packs. If you run the trans hot enough you could start burning stuff up - running in drive if you're pulling a hill under stall speed without a lockup in overdrive is probably a good idea to keep things cool. It could be the brake switch, but I doubt it as they didn't monkey with that when the worked on the trans. They most likely just forget the plug to the rest of the wiring harness - I don't know where/what its like on a 4th gen as mine is an M6 - but my third gen cars were on the passengers side along the firewall, it would take 10 seconds to plug/unplug.
Reply
Old Jun 22, 2009 | 09:49 AM
  #7  
slow4.7on20s's Avatar
Thread Starter
On The Tree
 
Joined: May 2006
Posts: 155
Likes: 0
Default

i was crusing at 45 or 5o at about 26oo rpm
Reply
Old Jun 22, 2009 | 09:54 AM
  #8  
acammer's Avatar
On The Tree
15 Year Member
Photogenic
iTrader: (1)
 
Joined: Mar 2009
Posts: 185
Likes: 0
From: Central NY
Default

Originally Posted by slow4.7on20s
i was crusing at 45 or 5o at about 26oo rpm
Sounds like you must have a pretty significant stall coverter in the car. What is your rear-end and converter? Any other trans work? Aftermarket trans cooler?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Jun 22, 2009 | 11:05 AM
  #9  
slow4.7on20s's Avatar
Thread Starter
On The Tree
 
Joined: May 2006
Posts: 155
Likes: 0
Default

its got 4.1o gears and a 35oo converter the trans is supposed to be built good it shifts real hard. it has a aftermarket trans cooler. its not my daily driver i dont take it down the interstate and i dont drive it real real far just cruise around town on the weekends or after work
Reply
Old Jun 22, 2009 | 02:46 PM
  #10  
slow4.7on20s's Avatar
Thread Starter
On The Tree
 
Joined: May 2006
Posts: 155
Likes: 0
Default

I just ran the code scanner on it and it gave me the code P1864 and tcc ckt
Reply




All times are GMT -5. The time now is 08:43 PM.

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