Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

Reverse Lockout

Thread Tools
 
Search this Thread
 
Old Oct 6, 2010 | 09:26 AM
  #1  
howard coleman's Avatar
Thread Starter
Teching In
 
Joined: Feb 2007
Posts: 2
Likes: 0
Default Reverse Lockout

i just fired up my rotary/T56 conversion yesterday, the trans is an F body 99 w 40K miles. when purchased it did not have a reverse lockout assembly so i purchased one off this forum.

i was able w some effort to get it initially into reverse and backed it out of my shop. i took it for a brief drive and the clutch (a Quartermaster double disc) worked well. i was in 1st, second and third.

i was subsequently unable to engage reverse. the shifter (a GTO assembly) seems blocked from reverse. all other gears seem reachable.

there is no grinding or clutch issue.

the reverse lockout solenoid assembly is not wired currently. i do have a pigtail but haven't gotten to figuring out how to mate it to my RX7.

could the unwired lockout be my problem?

if so, what does it need to actuate?

(i have searched this section of the board)

thanks,

howard
Reply
Old Oct 6, 2010 | 09:52 AM
  #2  
redbird555's Avatar
TECH Veteran
iTrader: (14)
 
Joined: Mar 2009
Posts: 4,444
Likes: 9
From: Pompano Beach FL
Default

thats the problem the lockout solenoid will only open and allow it to shift into reverse when it sees power.... which on an fbody is done with the key on and clutch in
Reply
Old Oct 6, 2010 | 02:29 PM
  #3  
Spartan7's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Mar 2009
Posts: 1,714
Likes: 8
From: Spring, TX
Default

Originally Posted by redbird555
...which on an fbody is done with the key on and clutch in
No, reverse lockout is controlled by a signal wire from the PCM. It engages the solenoid (thus allowing you to shift into reverse) when the vehicle is going slower than 3 mph. When the PCM sees that, it commands ground on that signal wire, completing the 12v circuit from the other wire.

OP, wiring up reverse lockout will only assist in easier shifting into reverse while moving slower than 3 mph. Otherwise, it is in its default position, which locks out reverse.
Reply
Old Oct 6, 2010 | 04:27 PM
  #4  
howard coleman's Avatar
Thread Starter
Teching In
 
Joined: Feb 2007
Posts: 2
Likes: 0
Default

so if the reverse lockout is not wired it locks out reverse?
Reply
Old Oct 9, 2010 | 12:22 PM
  #5  
04GTO-25's Avatar
Teching In
iTrader: (2)
 
Joined: Oct 2009
Posts: 8
Likes: 0
From: elkhart, indiana
Default

OK I just got done with a a4 to m6 swap in my 04 gto The only thing I hooked up was the speedo sensor I didnt hook up the reverse lock out or the skip shift my car goes in to all gears fine and goes in to reverse fine with no problems the reverse lock out not being hooked up will not keep the trans from going in to reverse ....
Reply
Old Oct 9, 2010 | 01:52 PM
  #6  
Spartan7's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Mar 2009
Posts: 1,714
Likes: 8
From: Spring, TX
Default

Originally Posted by 04GTO-25
the reverse lock out not being hooked up will not keep the trans from going in to reverse ....
First of all, reverse lockout doesn't completely prevent going into reverse. It only makes it more difficult. And secondly, on an F-body, it works exactly as I described. If you don't believe me, read the GM manuals.
Reply




All times are GMT -5. The time now is 02:52 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE