C4 General Discussion General C4 Corvette Discussion not covered in Tech

Door Jamb Switch replacement - the floating backplate

Thread Tools
 
Search this Thread
 
Old Jan 17, 2014 | 01:50 PM
  #1  
jman4582's Avatar
jman4582
Thread Starter
Instructor
 
Joined: Jan 2011
Posts: 135
Likes: 0
From: Santa Monica CA
Default Door Jamb Switch replacement - the floating backplate

I've finally received my new jamb switch and am ready to replace on the driver's side in my '90. However, several months ago, when I began to research this repair, I was told about a floating backplate and a very specific way of replacing the jamb switch so the backplate doesn't fall inside the door.

Unfortunately, for the life of me, I can't find the thread or video that gave me the instructions. Can anyone point me in the right direction?

Thanks,
Jason
Reply
Old Jan 17, 2014 | 04:14 PM
  #2  
86 pace car's Avatar
86 pace car
Instructor
10 Year Member
 
Joined: Aug 2013
Posts: 205
Likes: 1
From: Selden ny
Default

I took my door panel off I think if you take one screw out and put a longer one in you can switch it out without dropping the backplate+
Reply
Old Jan 19, 2014 | 03:44 PM
  #3  
SJW's Avatar
SJW
Le Mans Master
20 Year Member
 
Joined: May 2005
Posts: 7,373
Likes: 2,288
From: Central Maryland
Default

Originally Posted by 86 pace car
I took my door panel off I think if you take one screw out and put a longer one in you can switch it out without dropping the backplate+
This works:

Remove the upper screw, leaving the lower one as-is. Replace the upper screw with a longer screw than the original, threading it into the floating nut plate only a few turns. This will keep the nut plate from getting away from you.

Remove the lower screw, and pull the old switch out of the hole as far as the longer screw you just installed will permit.

Use the upper screw to pull the nut plate against the inner surface of the door.

Reinstall the lower screw to secure the bottom of the nut plate to the door.

Remove the longer screw.

Pull the switch the rest of the way out of the door.

Disconnect the harness connector from the old switch. Discard the old switch.

Plug the new switch into the two-pin connector.

Feed the wiring back into the hole in the door, and start the new switch into the hole.

Install the long screw a few turns of thread into the nut plate.

Remove the lower screw.

Complete the insertion of the switch into the door.

Use the upper screw to pull the nut plate against the inner surface of the door.

Install the lower screw.

Remove the upper screw, and replace with the original short screw.

Close the door GENTLY the first time to set the plunger in the new switch to the proper depth.

Grab a cold beverage. You're done.

Live well,

SJW
Reply
Old Jan 23, 2014 | 07:00 PM
  #4  
jman4582's Avatar
jman4582
Thread Starter
Instructor
 
Joined: Jan 2011
Posts: 135
Likes: 0
From: Santa Monica CA
Default

Followed those directions. It worked perfectly, and man did that beverage taste good!

Thanks a million for your help. I really appreciate it. That backplate would have been inside my door if it wasn't for the internet and this forum.
Reply
Old Jan 23, 2014 | 09:19 PM
  #5  
SJW's Avatar
SJW
Le Mans Master
20 Year Member
 
Joined: May 2005
Posts: 7,373
Likes: 2,288
From: Central Maryland
Default

You're most welcome. That procedure is a lot easier than removing the door panel, etc.

Glad it helped, and that everything worked out for you.

Live well,

SJW
Reply

Get notified of new replies

To Door Jamb Switch replacement - the floating backplate





All times are GMT -4. The time now is 05:44 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE