Notices
Maintenance & Repair 350Z up keep and diagnosing/fixing problems

Brake Lamp While Stoping?

Thread Tools
 
Search this Thread
 
Old Apr 10, 2007 | 11:03 AM
  #1  
QuicksilverZ33's Avatar
QuicksilverZ33
Thread Starter
Registered User
iTrader: (34)
 
Joined: Nov 2006
Posts: 920
Likes: 1
From: east coast
Exclamation Brake Lamp While Stoping?

I am having a problem with the brake light indicator on the instrument display(the light that indicates when the parking brake is in use).

When coming to a stop or slowing down at all for that matter, the brake light indicater lights up while braking hard (but not hard enough for ABS to kick in), and then goes out when the brakes are released...

Also, the light appears while shifting hard from 1st to 2nd at the track...

The manual states that this could be from a low brake fluid condition. I have checked the fluid and it looks ok (being right in the middle of min and max)...

Now I realize that this could simply be the fluid being low enough that when shifting on the sides of the resovior(sp?) while braking hard and shifting which is causing the low fluid light---> That would make sense

But, the fluid is not low...So I don't know whats going on. I doubt it is a malfunction with the guage display...

Any help would be appreciated. Thanks in advance.
Reply
Old Apr 10, 2007 | 01:42 PM
  #2  
DavesZ#3's Avatar
DavesZ#3
350Z-holic
Premier Member
20 Year Member
iTrader: (26)
 
Joined: Jul 2003
Posts: 15,887
Likes: 23
From: Louisiana
Default

It could also mean that one of your brake lamps is out. If that checks out, check your brake pads, then could be worn down.
Reply
Old Apr 10, 2007 | 02:00 PM
  #3  
VO...'s Avatar
VO...
Administrator
iTrader: (25)
 
Joined: Jun 2005
Posts: 58,609
Likes: 2,747
From: Down Under & Dirty
Default

Originally Posted by QuicksilverZ33
Now I realize that this could simply be the fluid being low enough that when shifting on the sides of the resovior(sp?) while braking hard and shifting which is causing the low fluid light---> That would make sense
That seems like a logical explanation other than your parking brake having a slight ground on it. Speaking of that, I can't remember whether pulling the hand brake lever grounds the switch out or creates an open/shrt. Either way, something could be going on there under hard shifting or braking conditions. I would try the simpler fix though. Add a small amount of B-Fluid. See if this rectifies your problem. If not, move to the harder solutions.
Reply
Old Apr 10, 2007 | 02:38 PM
  #4  
QuicksilverZ33's Avatar
QuicksilverZ33
Thread Starter
Registered User
iTrader: (34)
 
Joined: Nov 2006
Posts: 920
Likes: 1
From: east coast
Default

Originally Posted by DavesZ#3
It could also mean that one of your brake lamps is out. If that checks out, check your brake pads, then could be worn down.
True...although my car has 18,000 miles on it so far, I feel the rotors pulsing slowing down from high speeds...could this mean the brakes are low?

Brake lamps are good though...

thanks

Last edited by QuicksilverZ33; Apr 10, 2007 at 02:40 PM.
Reply
Old Apr 10, 2007 | 02:39 PM
  #5  
QuicksilverZ33's Avatar
QuicksilverZ33
Thread Starter
Registered User
iTrader: (34)
 
Joined: Nov 2006
Posts: 920
Likes: 1
From: east coast
Default

Originally Posted by vo7848
I would try the simpler fix though. Add a small amount of B-Fluid. See if this rectifies your problem. If not, move to the harder solutions.
Thanks, I will try that and I'll let you guys know what happens...
Reply
Old Apr 10, 2007 | 06:43 PM
  #6  
Eazzy's Avatar
Eazzy
Registered User
iTrader: (8)
 
Joined: Jan 2005
Posts: 8,268
Likes: 6
From: Barackville
Default

Couple of good thoughts ^ 1. Is low pads front or rear that are throwing off your proportioning valve. 2. Is maybe a poorly adjusted/loose E-Brake switch
Reply
Old Apr 12, 2007 | 06:00 PM
  #7  
QuicksilverZ33's Avatar
QuicksilverZ33
Thread Starter
Registered User
iTrader: (34)
 
Joined: Nov 2006
Posts: 920
Likes: 1
From: east coast
Default

Thanks guys for your help. It turned out that adding brake fluid solved the problem, even though I did not condsider it to be low( being that it was right in the middle of min/max) I filled it up right to the top line.

Only thing is that ABS seems very sensitive now...but its cold and damp out and I'll atribute it to that...

Thanks again for your help.
Reply
Old Apr 13, 2007 | 09:13 AM
  #8  
VO...'s Avatar
VO...
Administrator
iTrader: (25)
 
Joined: Jun 2005
Posts: 58,609
Likes: 2,747
From: Down Under & Dirty
Default

Originally Posted by QuicksilverZ33
Thanks guys for your help. It turned out that adding brake fluid solved the problem, even though I did not condsider it to be low( being that it was right in the middle of min/max) I filled it up right to the top line.
Glad to see it worked out. A reminder though: when you go to replace your current pads with new ones, then level is going to rise beyond max. You'll have to remove some fluid. Just dip the corner of a paper towel in the reservoir and let it soak up some of the fluid. This works very well.

You can paypal me $19.95 for the info. Thanks.
Reply
Old Apr 13, 2007 | 09:34 AM
  #9  
TheCajunStyle's Avatar
TheCajunStyle
Registered User
iTrader: (6)
 
Joined: Dec 2005
Posts: 532
Likes: 0
From: Berkshires
Default

Originally Posted by QuicksilverZ33
Thanks guys for your help. It turned out that adding brake fluid solved the problem, even though I did not condsider it to be low( being that it was right in the middle of min/max) I filled it up right to the top line.

Only thing is that ABS seems very sensitive now...but its cold and damp out and I'll atribute it to that...

Thanks again for your help.
You shouldn't have added more brake fluid...first thing would have been to replace the pads and check the rotors for wear.

When your brake warning light comes on again (it will eventually), are you going to add more brake fluid?
Reply
Old Apr 13, 2007 | 10:40 AM
  #10  
QuicksilverZ33's Avatar
QuicksilverZ33
Thread Starter
Registered User
iTrader: (34)
 
Joined: Nov 2006
Posts: 920
Likes: 1
From: east coast
Default

Originally Posted by vo7848
Glad to see it worked out. A reminder though: when you go to replace your current pads with new ones, then level is going to rise beyond max. You'll have to remove some fluid. Just dip the corner of a paper towel in the reservoir and let it soak up some of the fluid. This works very well.

You can paypal me $19.95 for the info. Thanks.
Thanks for the info...Are you serious? lol
Reply
Old Apr 13, 2007 | 10:42 AM
  #11  
QuicksilverZ33's Avatar
QuicksilverZ33
Thread Starter
Registered User
iTrader: (34)
 
Joined: Nov 2006
Posts: 920
Likes: 1
From: east coast
Default

Originally Posted by TheCajunStyle
You shouldn't have added more brake fluid...first thing would have been to replace the pads and check the rotors for wear.

When your brake warning light comes on again (it will eventually), are you going to add more brake fluid?
The light only came on when experiencing heavy force form slowing down and powerdhifting 2nd...At 18,000 miles I doubt the brakes are worn...but I'll look into it....Thanks
Reply
Old Apr 13, 2007 | 11:59 AM
  #12  
DavesZ#3's Avatar
DavesZ#3
350Z-holic
Premier Member
20 Year Member
iTrader: (26)
 
Joined: Jul 2003
Posts: 15,887
Likes: 23
From: Louisiana
Default

Don't underestimate the wearing power of the stock rotors on the stock brakes. I replaced mine at about 18K and I've seen others post that they did it as soon as 12K. Some people are harder on brakes than others.
Reply
Old Apr 13, 2007 | 02:16 PM
  #13  
HyperSprite's Avatar
HyperSprite
Mad Scientist
Premier Member
iTrader: (6)
 
Joined: Jul 2004
Posts: 2,795
Likes: 1
From: San Jose, CA
Default

Originally Posted by vo7848
Glad to see it worked out. A reminder though: when you go to replace your current pads with new ones, then level is going to rise beyond max. You'll have to remove some fluid. Just dip the corner of a paper towel in the reservoir and let it soak up some of the fluid. This works very well.
You can paypal me $19.95 for the info. Thanks.

You should not be pushing fluid back up the lines to the master, it can have adverse effects on your ABS by sending debris that may have settled in low spots back up the pipes. With tubing attached to avoid a mess, open your bleed valve as you compress the piston and then add new fluid when you are done.

Chris
Reply
Old Apr 13, 2007 | 02:32 PM
  #14  
VO...'s Avatar
VO...
Administrator
iTrader: (25)
 
Joined: Jun 2005
Posts: 58,609
Likes: 2,747
From: Down Under & Dirty
Default

Originally Posted by HyperSprite
You should not be pushing fluid back up the lines to the master, it can have adverse effects on your ABS by sending debris that may have settled in low spots back up the pipes. With tubing attached to avoid a mess, open your bleed valve as you compress the piston and then add new fluid when you are done.

Chris
I've done it for years on several cars. Never had a problem. Using the good ol' C-clamp to push the piston has never caused a problems in the previous 3 cars I've owned.

If the system has no leaks, there should be no risk of contamination. And if there were leaks, I'd say pushing a couple molecules of debris back up to the master cylinder would be the least of his worries. -2 cents-
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Pleask
Maintenance & Repair
22
Dec 21, 2021 03:17 PM
hajwoj
Autocross/Road
27
Nov 1, 2015 05:25 PM
samansharif
Brakes & Suspension
1
Sep 25, 2015 12:31 PM




All times are GMT -8. The time now is 07:13 AM.