V6 Mustang Brake Booster Problems - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 10-01-2007, 03:39 PM   #1
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
V6 Mustang Brake Booster Problems

Since getting the car back from having the new engine put it there is a problem with the brakes. It seems like they are not getting enough pressure built up while in areas like parking lots or when first starting the car up and backing up and driving. The brakes do not stop well at all. You can feel the pads hit the rotors when you press the brakes but the car doesn't stop well.

However when driving down the rode this seems to go away.

What would cause this? I took it to a mechanic and they could not single out the problem but hinted at the Brake Booster going bad. Has anyone had experience with something like this before?
__________________

Reddit
Brent is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-01-2007, 03:41 PM   #2
Registered Member
Regular
 
rydog's Avatar
 
Join Date: Jul 2006
Region: Virginia
Posts: 521
Send a message via MSN to rydog
Re: 1996 V6 Mustang Brake Pressure Problems

its the cam you have, bleeding off pressure less pressure the brake booster
__________________

97 V6-GT40 turbo-42#rs-BA2800 MAF-4.10's & tlok-254rwhp-369rwtq
Turbo'd by-TMA Turbo(http://www.tmaturbo.com/)
Tuned by-Dyno Tuned Performance(http://www.dtpracing.com/)
rydog is offline   Reply With Quote
Old 10-01-2007, 03:46 PM   #3
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

Seriously? Is there any way to fix it? It's pretty bad when first starting up.
__________________

Reddit
Brent is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-01-2007, 03:48 PM   #4
Registered Member
Regular
 
rydog's Avatar
 
Join Date: Jul 2006
Region: Virginia
Posts: 521
Send a message via MSN to rydog
Re: 1996 V6 Mustang Brake Pressure Problems

I dont know of a way I just dealt with in my 82:dunno:

what is your vacum at idle?
__________________

97 V6-GT40 turbo-42#rs-BA2800 MAF-4.10's & tlok-254rwhp-369rwtq
Turbo'd by-TMA Turbo(http://www.tmaturbo.com/)
Tuned by-Dyno Tuned Performance(http://www.dtpracing.com/)
rydog is offline   Reply With Quote
Old 10-01-2007, 04:11 PM   #5
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

I found this and it looks like a good solution: Brake Boost

This is probably why the transmission seems to lag a bit when first accelerating from a stop since it requires vacuum as well. :chin:
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 04:14 PM   #6
Registered Member
Regular
 
rydog's Avatar
 
Join Date: Jul 2006
Region: Virginia
Posts: 521
Send a message via MSN to rydog
Re: 1996 V6 Mustang Brake Pressure Problems

That's the ticket
__________________

97 V6-GT40 turbo-42#rs-BA2800 MAF-4.10's & tlok-254rwhp-369rwtq
Turbo'd by-TMA Turbo(http://www.tmaturbo.com/)
Tuned by-Dyno Tuned Performance(http://www.dtpracing.com/)
rydog is offline   Reply With Quote
Old 10-01-2007, 04:22 PM   #7
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

and here is more reading on it from someone who has done it: Hydro-boost (brakes) - V6Power Messageboard
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 04:29 PM   #8
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

Another possible solution: Stainless Steel Brakes Electric Vacuum Pump Kits: SSB-28146 - summitracing.com
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 04:31 PM   #9
Registered Member
Regular
 
rydog's Avatar
 
Join Date: Jul 2006
Region: Virginia
Posts: 521
Send a message via MSN to rydog
Re: 1996 V6 Mustang Brake Pressure Problems

That ones a bit pricey though I like the GT fix better
__________________

97 V6-GT40 turbo-42#rs-BA2800 MAF-4.10's & tlok-254rwhp-369rwtq
Turbo'd by-TMA Turbo(http://www.tmaturbo.com/)
Tuned by-Dyno Tuned Performance(http://www.dtpracing.com/)
rydog is offline   Reply With Quote
Old 10-01-2007, 04:32 PM   #10
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

Problem is buying all those parts form the Junkyard probably won't be cheap either... then you gotta cuss up a storm taking the whole brake system apart lol...

I got to look into if this would fix the Transmission problem as well.
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 04:40 PM   #11
Legacy Member
Legacy
 
Join Date: May 2003
Region: Pennsylvania
Posts: 381
Re: 1996 V6 Mustang Brake Pressure Problems

My v6 had that problem too. I think it was the booster but like you said no one could diagnose it. I would just let the car run for about 30 seconds when I started it up if I wanted to avoid the problem all together or I'd just be ready for it the first 30 seconds of drving.
__________________

-Denver
2002 Mineral Grey GT, 5-speed: MGW short throw, JLT CAI: SOLD
2002 Electric Green V6, Auto: SOLD
greenpony02 is offline   Reply With Quote
Old 10-01-2007, 04:40 PM   #12
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

What kind of cam did you run?
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 05:30 PM   #13
Legacy Member
Legacy
 
Join Date: May 2003
Region: Pennsylvania
Posts: 381
Re: 1996 V6 Mustang Brake Pressure Problems

mine was stock!
__________________

-Denver
2002 Mineral Grey GT, 5-speed: MGW short throw, JLT CAI: SOLD
2002 Electric Green V6, Auto: SOLD
greenpony02 is offline   Reply With Quote
Old 10-01-2007, 06:11 PM   #14
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

Yea then your booster was probably gone then....
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 06:27 PM   #15
Registered Member
Regular
 
Join Date: Oct 2003
Posts: 130
Send a message via AIM to white95v6
Re: 1996 V6 Mustang Brake Pressure Problems

oh man. slow down.

whats your cam? cause i have run Large cams and no issue yet with no haveing enough vacum on the boost for decent stoping. also just buy a $40 Vacum canister. no need for those things you posted about.

also the Trans does not use anything from a Vacum source to run or funstion properly.

if the cam is decent a Stall and a Gear will wake it up Alot.

this is nothing new why are you guessing at a fix?
__________________
The First and Only 9 Sec Production Based V6 Stang!!,First over 500rwhp,First and only over 600rwhp
60ft-1.42,1/8th mile-6.25@111mph,1/4 mile-9.83@136.65mph
Sponsored by:
WWW.DELKPERFORMANCE.COM
white95v6 is offline   Reply With Quote
Old 10-01-2007, 06:34 PM   #16
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

because its bad enough to where it needs to be fixed and I have never encountered it before. This is my first build period.

It's bad enough at idle where I would like to fix it. I'll look into the Vacuum Canister. I guess the Transmission problem is with the tune then.

Thanks.
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 06:38 PM   #17
Registered Member
Regular
 
Join Date: Oct 2003
Posts: 130
Send a message via AIM to white95v6
Re: 1996 V6 Mustang Brake Pressure Problems

Quote:
Originally Posted by Brent View Post
because its bad enough to where it needs to be fixed and I have never encountered it before. This is my first build period.

It's bad enough at idle where I would like to fix it. I'll look into the Vacuum Canister. I guess the Transmission problem is with the tune then.

Thanks.

i didn't say it was not enough of a problem that you should not fix the issue.

again i say what Cam do you have? this will shine some light as to if its your problem or not.

the trans could be a tune,converter or just wore out lol
__________________
The First and Only 9 Sec Production Based V6 Stang!!,First over 500rwhp,First and only over 600rwhp
60ft-1.42,1/8th mile-6.25@111mph,1/4 mile-9.83@136.65mph
Sponsored by:
WWW.DELKPERFORMANCE.COM
white95v6 is offline   Reply With Quote
Old 10-01-2007, 06:39 PM   #18
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

Sorry forgot that. Its 224/230. I gotta find the spec sheet for the lift specs.
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 06:40 PM   #19
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: 1996 V6 Mustang Brake Pressure Problems

Quote:
Originally Posted by white95v6 View Post
i didn't say it was not enough of a problem that you should not fix the issue.

again i say what Cam do you have? this will shine some light as to if its your problem or not.

the trans could be a tune,converter or just wore out lol
Well I say its probably the tune because the tranny shifted fine before the build and now it seems sluggish.
__________________

Reddit
Brent is offline   Reply With Quote
Old 10-01-2007, 06:45 PM   #20
Registered Member
Regular
 
Join Date: Oct 2003
Posts: 130
Send a message via AIM to white95v6
Re: 1996 V6 Mustang Brake Pressure Problems

Quote:
Originally Posted by Brent View Post
because its bad enough to where it needs to be fixed and I have never encountered it before. This is my first build period.

It's bad enough at idle where I would like to fix it. I'll look into the Vacuum Canister. I guess the Transmission problem is with the tune then.

Thanks.
Quote:
Originally Posted by Brent View Post
Sorry forgot that. Its 224/230. I gotta find the spec sheet for the lift specs.
need the Lobe sep and IC.
__________________
The First and Only 9 Sec Production Based V6 Stang!!,First over 500rwhp,First and only over 600rwhp
60ft-1.42,1/8th mile-6.25@111mph,1/4 mile-9.83@136.65mph
Sponsored by:
WWW.DELKPERFORMANCE.COM
white95v6 is offline   Reply With Quote
Old 10-03-2007, 11:45 PM   #21
Registered User
Regular
 
Brent's Avatar
 
Join Date: May 2003
Region: Tennessee
Posts: 11,873
Re: V6 Mustang Brake Booster Problems

Found the sheet:

__________________

Reddit
Brent is offline   Reply With Quote
Old 10-04-2007, 03:37 PM   #22
Registered Member
Regular
 
Join Date: Oct 2003
Posts: 130
Send a message via AIM to white95v6
Re: V6 Mustang Brake Booster Problems

Quote:
Originally Posted by Brent View Post
Found the sheet:

hmm with that cam it should not have any issues building vacum to stop the car.

whats your vacum at idle?

no vacum leaks right?
__________________
The First and Only 9 Sec Production Based V6 Stang!!,First over 500rwhp,First and only over 600rwhp
60ft-1.42,1/8th mile-6.25@111mph,1/4 mile-9.83@136.65mph
Sponsored by:
WWW.DELKPERFORMANCE.COM
white95v6 is offline   Reply With Quote
Old 10-04-2007, 08:29 PM   #23
Legacy Member
Legacy
 
DarkShadow's Avatar
 
Join Date: Aug 2005
Region: New Jersey
Posts: 1,734
Send a message via AIM to DarkShadow
Re: V6 Mustang Brake Booster Problems

Sounds more to me like a vac leak. It's possible that when the engine was put in your booster line might not have sealed properly or been kinked possibly?
__________________
DarkShadow is offline   Reply With Quote
Old 11-05-2007, 06:08 PM   #24
Registered Member
Regular
 
Join Date: Jul 2007
Posts: 27
Send a message via AIM to AlexJ
Re: V6 Mustang Brake Booster Problems

My stock v6 does this same thing. And it is stock. I've just kinda ignored it up until now...
AlexJ is offline   Reply With Quote
Old 11-05-2007, 09:38 PM   #25
Registered Member
Regular
 
rydog's Avatar
 
Join Date: Jul 2006
Region: Virginia
Posts: 521
Send a message via MSN to rydog
Re: V6 Mustang Brake Booster Problems

^well somethings wrong for sure and dont ignore it now
__________________

97 V6-GT40 turbo-42#rs-BA2800 MAF-4.10's & tlok-254rwhp-369rwtq
Turbo'd by-TMA Turbo(http://www.tmaturbo.com/)
Tuned by-Dyno Tuned Performance(http://www.dtpracing.com/)
rydog is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang

Tags
v6 mustang

Thread Tools Search this Thread
Search this Thread:

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 On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
99 35th. ann. GT brake problems !! HELP!! plz j4gwig 1996-2004 Mustang GT 6 06-22-2010 06:28 PM
Brake problems 67mustang97 1996-2004 Mustang GT 4 04-06-2010 07:39 PM
Brake Problems LSUstang Pre-2005 V6 Mustang 9 06-20-2009 06:21 PM
Brake Problems on a 71 Mach 1 71 Mach 1 Classic Mustangs 6 04-18-2009 07:54 PM
Vacuum booster Black Panther Pre-2005 V6 Mustang 2 02-12-2007 10:45 PM

» Like Us On Facebook



04:50 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.