Brake automatic transmission interlock solenoid - CorvetteForum - Chevrolet Corvette Forum Discussion


C6 Corvette General Discussion
General C6 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Brake automatic transmission interlock solenoid

Reply
 
 
 
Thread Tools Search this Thread
Old 01-14-2018, 02:28 AM   #1
Vetteran04
CF Member
Thread Starter
 
Vetteran04's Avatar
 
Member Since: Sep 2004
Location: VA
Posts: 68
Thanks: 0
Thanked 0 Times in 0 Posts
Default Brake automatic transmission interlock solenoid

Drive the car today after a couple of weeks. Noticed interlock solenoid much louder than usual but appears to be functioning properly. Not sure if worth further investigation.
Vetteran04 is offline   Reply With Quote
Old 01-14-2018, 03:17 AM   #2
Dano523
CF Senior Member
 
Member Since: Dec 2013
Posts: 4,855
Thanks: 0
Thanked 483 Times in 382 Posts
Default

Quote:
Originally Posted by Vetteran04 View Post
Drive the car today after a couple of weeks. Noticed interlock solenoid much louder than usual but appears to be functioning properly. Not sure if worth further investigation.
FYI, very seldom do the interlock solenoid actually go out*, but what happens is there is a contact switch in front of the shifter shaft that does to south instead.
* hence coils wind wires for the electromagnet don't burn out, or the rod just needs to be lubed so it not binding in the electromagnet body channel.

Most of the time you can just bend the arm out a touch more to make sure that the contact is working with the shifter in park, while other times you have to either pull it apart to clean the inner contacts, or just replace it instead.

The contact switch that ends up having problems



The actual electromagnet solenoid that will unlock/pull back the park lock ratchet once it gets powder to do so, hence the contact switch engage with a contact through it to so it will power up the electromagnet solenoid while the shifter is forward in park, the cut the power to the actual electromagnet solenoid once the shifter has been moved out of park .

Last edited by Dano523; 01-14-2018 at 03:24 AM.
Dano523 is offline   Reply With Quote
Old 01-14-2018, 08:57 AM   #3
CSixDude
CF Senior Member
 
Member Since: Mar 2010
Location: TX
Posts: 1,311
Thanked 76 Times in 48 Posts
Default

If you put the car in park and press and release the brake, you'll usually hear a fairly loud click as the solenoid cycles forward and back. Mines pretty loud too. I don't think it is any indication of a problem. When it stops making the click is when you need to worry, cause that would indicate that it isn't working anymore, which is usually caused by the switch, as posted above.
CSixDude is offline   Reply With Quote
Old 01-14-2018, 10:36 AM   #4
Vetteran04
CF Member
Thread Starter
 
Vetteran04's Avatar
 
Member Since: Sep 2004
Location: VA
Posts: 68
Thanks: 0
Thanked 0 Times in 0 Posts
Default

BTW, I called my dealer to see if their Vette mechanic was working (which he wasn't) to speak with him, and asked about the cost to replace the solenoid. According to the tech writer it's 4.5 hour job (labor), plus I believe that they replace the entire shifter assembly and not just the solenoid when it goes bad.

If it comes to replacement (which apparently we're not at that point), I would just pull the console myself and try an fix it. It appears straightforward, but tedious.

I guess typically when it fails, the car can't come out of park, so I there wouldn't be much choice other than to tear it down even to get it out of park. At that point, unless the linkage is all screwed up and broken, it should be fixable.

My concern was not the nonie so much as whether the louder solenoid nonie was some indication of imminent failure resulting in the car being stuck in park someplace other than home base.

Thanks for your feedback and images.
Vetteran04 is offline   Reply With Quote
Old 01-14-2018, 10:38 AM   #5
Vetteran04
CF Member
Thread Starter
 
Vetteran04's Avatar
 
Member Since: Sep 2004
Location: VA
Posts: 68
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Damn autocorrect:"nonie" = "noise". WTF.
Vetteran04 is offline   Reply With Quote
Old 01-14-2018, 10:59 AM   #6
CSixDude
CF Senior Member
 
Member Since: Mar 2010
Location: TX
Posts: 1,311
Thanked 76 Times in 48 Posts
Default

I don't think the noise from the solenoid activating is anything to worry about. It's simply the action of the solenoid striking the lock mechanism when it extends and retracts.
CSixDude is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • Brake automatic transmission interlock solenoid
  •  
     
    Reply


    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    Posting Rules
    You may not post new threads
    You may not post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump

    Sponsored Ads
    Vendor Directory

    All times are GMT -4. The time now is 02:29 AM.


    We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
     
    • Ask a Question
      Get answers from community experts
    Question Title:
    Description:
    Your question will be posted in: