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

reverse lockout problem

Thread Tools
 
Search this Thread
 
Old Feb 17, 2007 | 07:09 PM
  #1  
vatechguy3's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Jan 2007
Posts: 495
Likes: 0
From: Yorktown, VA
Default reverse lockout problem

was driving home from dinner with friends and when i tried to upshift from 6th to 5th, the tranny tried to engage in reverse. i could hear and feel the gears grinding, and my friend said he say the reverse lights blink on and off.

i thought this was impossible due to the reverse lockout solenoid??

so what gives???

thanks
tony
Reply
Old Feb 17, 2007 | 10:56 PM
  #2  
thosewhohatedmecreat's Avatar
TECH Apprentice
 
Joined: Feb 2007
Posts: 338
Likes: 0
Default

sounds like the solenoid died, or got unplugged.. maybe check it out? happened to my friends car too. sucks..
Reply
Old Feb 18, 2007 | 08:53 AM
  #3  
vatechguy3's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Jan 2007
Posts: 495
Likes: 0
From: Yorktown, VA
Default

how can you check the solenoid?

tony
Reply
Old Feb 18, 2007 | 09:53 AM
  #4  
Sgt. Spuds's Avatar
Shirley Temple Drinker
iTrader: (1)
 
Joined: Oct 2005
Posts: 3,333
Likes: 1
From: IL
Default

you didnt upshift from sixth to fifth, thats a downshift...
Reply
Old Feb 18, 2007 | 10:30 AM
  #5  
calhoon's Avatar
TECH Fanatic
20 Year Member
iTrader: (6)
 
Joined: Oct 2002
Posts: 1,967
Likes: 4
From: Charlotte metro area
Default

These solenoids almost NEVER fail. It is not a reverse lockot, its an inhibitor. That means reverse is always available with enough shift effort. Were you spanking the downshift?. It is also possible that the skip eliminator and reverse harness plugs are switched. I have seen this also with a botched skip eliminator install.This could power the solenoid at an incorrect time. The reverse sol and the skip sol are opposite acting. That is ,it takes power to release the reverse load and the skip activates with power.
Reply
Old Feb 18, 2007 | 01:40 PM
  #6  
vatechguy3's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Jan 2007
Posts: 495
Likes: 0
From: Yorktown, VA
Default

have not yet installed a skip shift eliminator yet. and skip skip does function, as i hate it and will be buying an eliminator very soon(as soon as it warms up enough to install it).

no, i was not banging the downshift at all, just trying to be smooth as traffic slowed from 55 down to 45 and 6th started to bog.

what can i do to verify proper operation?

thanks
tony
Reply
Old Feb 18, 2007 | 02:03 PM
  #7  
N4cer's Avatar
10 Second Club
iTrader: (11)
 
Joined: Apr 2006
Posts: 2,526
Likes: 1
From: Ashland, KY
Default

Shifting in a straight line would fix it. Sounds like you just overpowered the solenoid, whether you realize it or not. I believe the way the solenoid is set up, if anything happens it is engaged by default. Like said above, if the solenoid came unplugged, it would remain engaged. It takes power to release the solenoid.
Reply
Old Feb 18, 2007 | 10:40 PM
  #8  
slowpoke96z28's Avatar
TECH Addict
15 Year Member
iTrader: (2)
 
Joined: May 2005
Posts: 2,099
Likes: 9
From: cedar hill, tx
Default

Originally Posted by N4cer
Shifting in a straight line would fix it. Sounds like you just overpowered the solenoid, whether you realize it or not. I believe the way the solenoid is set up, if anything happens it is engaged by default. Like said above, if the solenoid came unplugged, it would remain engaged. It takes power to release the solenoid.



thats about the only thing it could be. even if the skip shift and reverse inhibit were switched, the pcm wouldnt be commanding a skipshift at a speed you could realistically drive in 6th gear. just be more careful.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 19, 2007 | 03:44 PM
  #9  
vatechguy3's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Jan 2007
Posts: 495
Likes: 0
From: Yorktown, VA
Default

any mechanics care to chime in??

what is the proper operation of the lockout selonoid?

thanks
tony
Reply
Old Feb 19, 2007 | 06:19 PM
  #10  
N4cer's Avatar
10 Second Club
iTrader: (11)
 
Joined: Apr 2006
Posts: 2,526
Likes: 1
From: Ashland, KY
Default

Who is considered to be a mechanic? And what makes them know more than a guy who works on his own F-body, since other cars aren't relevant in this?

What do you mean by the "proper operation"? Purpose? Mechanism? What?
Reply




All times are GMT -5. The time now is 08:25 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