C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

99 Pass Window Won't Roll Down - Regulator Question

Thread Tools
 
Search this Thread
 
Old Feb 27, 2011 | 11:41 AM
  #1  
91Vette's Avatar
91Vette
Thread Starter
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2000
Posts: 6,727
Likes: 76
From: Bloomington IL
Default 99 Pass Window Won't Roll Down - Regulator Question

I know this has been discussed at length, as I have used the search function here.

In my case, the passenger side window won't roll down. I press the button and hear a 'click', but nothing else.

So, I figure the regulator needs replaced.

I looked online at some discounted parts places and see where they sell the power window motor + regulator assemblies pretty cheaply. Can I simply unbolt the regulator from the power window + regulator that I buy from a store and swap it with the one on my car?

It may seem like a dumb question, but I don't want to go through the trouble of replacing the power window motor if it is not bad. If it is just the regulator, I would rather just replace it.

Thanks!
Reply
Old Feb 27, 2011 | 11:49 AM
  #2  
Sea Five's Avatar
Sea Five
Racer
 
Joined: Sep 2008
Posts: 446
Likes: 1
From: Phillipsburg New Jersey
Default

before it stopped rolling down completely, had it been getting slow, or struggling?

or did it seem like it was moving fast enough, but made a grinding or binding noise?

scenerio one sounds like a dead motor, and youre hearing the relay clicking.

scenerio 2 sounds like a bent or bound up regulator. if you want to be sure, pop the door panel off and test the connector by unplugging it from the motor and checking for power and ground. if you have it, the motor is bad. (unless c5's work off a completely ground control like from a BCM, im unaware)

if you have it at the connector, the motor is bad.

edit:
since c5's are a single cable driven unit, you can only replace the whole assembly. motor and regulator together.

as long as youre sure the switch isnt bad, go ahead and replace it! (test both switches, driver door and passenger door)

Last edited by Sea Five; Feb 27, 2011 at 11:52 AM.
Reply
Old Feb 27, 2011 | 12:06 PM
  #3  
91Vette's Avatar
91Vette
Thread Starter
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2000
Posts: 6,727
Likes: 76
From: Bloomington IL
Default

Before the window stopped rolling down, it seemed to work fine with respect to speed. There were no noises out of the ordinary.
Reply
Old Feb 27, 2011 | 01:32 PM
  #4  
dgrant3830's Avatar
dgrant3830
Tech Contributor
10 Year Member
 
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Default

The window regulator/motor is an assembly. There's a single steel cable that's run through both rails and two pulley plus looped through the motor too. I just replaced my driver's door one and from what I saw, its best to just replace the entire assembly.
Reply
Old Feb 27, 2011 | 01:53 PM
  #5  
coxjajb's Avatar
coxjajb
Advanced
10 Year Member
 
Joined: Mar 2008
Posts: 84
Likes: 0
From: San Antonio Texas
Default

91Vette, see link posted below. I followed the process described and now have a working window.
http://forums.corvetteforum.com/c5-t...-question.html
Reply
Old Feb 27, 2011 | 02:31 PM
  #6  
Cratecruncher's Avatar
Cratecruncher
Instructor
15 Year Member
Liked
 
Joined: Jun 2008
Posts: 233
Likes: 1
From: Austin Texas
Default

Confirm power first as mentioned. The passenger side motor can stop working due to lack of use. The armature shafts have no lubrication that I can see. You can try whacking on it to try and free it up . The best way to fix it is to take off the motor housing and spray some wd-40 on the bushings and brushes. There are threads that go into more detail.
Reply
Old Feb 27, 2011 | 04:55 PM
  #7  
91Vette's Avatar
91Vette
Thread Starter
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2000
Posts: 6,727
Likes: 76
From: Bloomington IL
Default

Thanks for the replies! Looks like I will be replacing the motor/regulator. I'll mine the site as I bet there are some detailed write ups with pics as to how to do this.
Reply
Old Feb 27, 2011 | 05:51 PM
  #8  
dgrant3830's Avatar
dgrant3830
Tech Contributor
10 Year Member
 
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Default

Its pretty easy to do and the only less than easy part is adjusting the window which you will see how to do pretty fast.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Feb 27, 2011 | 08:03 PM
  #9  
machz800ps's Avatar
machz800ps
Burning Brakes
10 Year Member
 
Joined: Jun 2009
Posts: 787
Likes: 1
From: New Baltimore Michigan
Default

Originally Posted by 91Vette
Thanks for the replies! Looks like I will be replacing the motor/regulator. I'll mine the site as I bet there are some detailed write ups with pics as to how to do this.
My 04 z did the same thing took door panel off and tapped on the motor a few times also pulled up and pushed down on the window while pushing the button and it freed up, it was moving a little slow but got better the more i cycled it, it stoped working again a week or 2 later and i pulled the rubber plug from the bottom of the door an put a long socket extention up thru the bottom of the door and tapped the motor again and started working again and has not quite yet. i do have a hoist so working from under the door was alot easier than from the ground
I think the motors get sticky from lack of use, i cycle mine now just to make sure
good luck
Steve

Last edited by machz800ps; Feb 27, 2011 at 08:06 PM.
Reply

Get notified of new replies

To 99 Pass Window Won't Roll Down - Regulator Question





All times are GMT -4. The time now is 08:30 PM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE