Go Back   Honda-Tech > Honda and Acura Model-Specific Technical Forums > Honda Civic/Del Sol (1992 - 2000)
Sign in using an external account
Register Forgot Password?
Search


Welcome to Honda-Tech!
Welcome to Honda-Tech.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Honda-Tech community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread
Old 08-23-2010, 05:07 PM   #1
Markb16a
Honda-Tech Member
Garage is empty, add now
 
Markb16a's Avatar
 
Join Date: Jan 2005
Location: "The Sunshine State"
Posts: 1,326
iTrader Rating: (0)
Send a message via AIM to Markb16a
Default ‼ Brake Booster Question soft spongy brake pedal feel.‼

I have a question I know I need a brake booster but here is the question? For all you wire tuck guys out there. Has anyone flipped there brake booster over to try to hide the vacuum line and have there brake booster not leak? This has been going on for a while now. The reason that I am asking is I might just call it a day and flip it back over or should I just go get another one from a junk yard?
__________________
For Sale Thread http://www.hondamarketplace.com/show....php?t=2859456
Markb16a is offline   Reply With Quote
Old 08-23-2010, 05:15 PM   #2
RonJ@HT
Raising the bar
2000 Honda Civic
My Garage
 
RonJ@HT's Avatar
 
Join Date: Feb 2008
Location: Houston, Texas
Posts: 34,219
iTrader Rating: (0)
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

A bad brake booster would not cause a spongy brake pedal. Is the brake fluid low in the reservoir? If so, check for a brake fluid leak from the master cylinder, calipers, and wheel cylinder. If you can find no leaks, the master cylinder may be bad.
__________________
Don't guess, troubleshoot.
Useful tech links -- FAQs; Codes; Check Spark; Test Fuses; Fuse 15 TSB; Clean IACV or FITV
RonJ@HT is offline   Reply With Quote
Old 08-23-2010, 05:36 PM   #3
Tico Loco
Honda-Tech Member
Garage is empty, add now
 
Join Date: Jul 2010
Location: I live in San Jose, Costa Rica
Posts: 62
iTrader Rating: (0)
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

Yes, a bad brake booster turn your pedal very hard ( feel the same as with the engine turn off ).

Bleed your system, your may have air in the system. Inspect your brake fluid because you could take this oppotunity to perform a complete brake fluid change.
Tico Loco is offline   Reply With Quote
Old 08-23-2010, 06:13 PM   #4
Markb16a
Honda-Tech Member
Garage is empty, add now
 
Markb16a's Avatar
 
Join Date: Jan 2005
Location: "The Sunshine State"
Posts: 1,326
iTrader Rating: (0)
Send a message via AIM to Markb16a
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

ok I have a friend and he is a mechanic and I just bought the master cylinder thats new. So he is telling me that the brake booster is bad. the pedal is hard when the car is off and when i turn the car on its soft and the idle is a lil rough due to a vacuum leak somewhere and its coming from the brake booster assembly. And its getting worse I bleed the brake according to the manual criscross. rr, Lf, Lr and RF. So it could be air in the lines or a bad brake booster?
__________________
For Sale Thread http://www.hondamarketplace.com/show....php?t=2859456
Markb16a is offline   Reply With Quote
Old 08-23-2010, 06:26 PM   #5
RonJ@HT
Raising the bar
2000 Honda Civic
My Garage
 
RonJ@HT's Avatar
 
Join Date: Feb 2008
Location: Houston, Texas
Posts: 34,219
iTrader Rating: (0)
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

Quote:
Originally Posted by Markb16a View Post
ok I have a friend and he is a mechanic and I just bought the master cylinder thats new. So he is telling me that the brake booster is bad. the pedal is hard when the car is off and when i turn the car on its soft and the idle is a lil rough due to a vacuum leak somewhere and its coming from the brake booster assembly. And its getting worse I bleed the brake according to the manual criscross. rr, Lf, Lr and RF. So it could be air in the lines or a bad brake booster?
You mechanic friend is wrong. A bad brake booster will NOT cause a soft brake pedal. You either still have air in the system or a fluid leak, or the "new" master cylinder is bad.
__________________
Don't guess, troubleshoot.
Useful tech links -- FAQs; Codes; Check Spark; Test Fuses; Fuse 15 TSB; Clean IACV or FITV
RonJ@HT is offline   Reply With Quote
Old 08-23-2010, 06:53 PM   #6
Markb16a
Honda-Tech Member
Garage is empty, add now
 
Markb16a's Avatar
 
Join Date: Jan 2005
Location: "The Sunshine State"
Posts: 1,326
iTrader Rating: (0)
Send a message via AIM to Markb16a
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

so what your saying is if the pedal is soft that would be part of the master cylinder? how do you know if you have a bad brake booster? whay symptoms would you have? I think I spelled that wrong.
__________________
For Sale Thread http://www.hondamarketplace.com/show....php?t=2859456
Markb16a is offline   Reply With Quote
Old 08-23-2010, 07:31 PM   #7
RonJ@HT
Raising the bar
2000 Honda Civic
My Garage
 
RonJ@HT's Avatar
 
Join Date: Feb 2008
Location: Houston, Texas
Posts: 34,219
iTrader Rating: (0)
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

Quote:
Originally Posted by Markb16a View Post
so what your saying is if the pedal is soft that would be part of the master cylinder?
...or air in the system or a fluid leak.

Quote:
how do you know if you have a bad brake booster? whay symptoms would you have?
--->
Quote:
Originally Posted by Tico Loco View Post
a bad brake booster turn your pedal very hard ( feel the same as with the engine turn off ).
__________________
Don't guess, troubleshoot.
Useful tech links -- FAQs; Codes; Check Spark; Test Fuses; Fuse 15 TSB; Clean IACV or FITV
RonJ@HT is offline   Reply With Quote
Old 08-25-2010, 04:50 PM   #8
Markb16a
Honda-Tech Member
Garage is empty, add now
 
Markb16a's Avatar
 
Join Date: Jan 2005
Location: "The Sunshine State"
Posts: 1,326
iTrader Rating: (0)
Send a message via AIM to Markb16a
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

ok today i bought a new master cylinder and I got all the air out of the lines. when the car is off the pedal is hard like how it is supposed to be. But when I turn the car on it gets spongy right away. Can it be a bad brake booster? I can not find any leaks anywhere.
__________________
For Sale Thread http://www.hondamarketplace.com/show....php?t=2859456
Markb16a is offline   Reply With Quote
Old 08-26-2010, 06:53 AM   #9
Markb16a
Honda-Tech Member
Garage is empty, add now
 
Markb16a's Avatar
 
Join Date: Jan 2005
Location: "The Sunshine State"
Posts: 1,326
iTrader Rating: (0)
Send a message via AIM to Markb16a
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

ttt
__________________
For Sale Thread http://www.hondamarketplace.com/show....php?t=2859456
Markb16a is offline   Reply With Quote
Old 08-26-2010, 06:58 AM   #10
macson
Honda-Tech Member
1998 Honda Civic
 
macson's Avatar
 
Join Date: Aug 2007
Location: Carroll County, MD
Posts: 418
iTrader Rating: (0)
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

Flush the system. If you already did the steps you mentioned, could be that your fluid is shot.
macson is offline   Reply With Quote
Old 08-26-2010, 08:38 AM   #11
lunareg
Honda-Tech Member
1993 Honda Civic
My Garage
 
lunareg's Avatar
 
Join Date: Jul 2010
Location: Illinois
Posts: 693
iTrader Rating: (0)
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

Quote:
Originally Posted by Markb16a View Post
ok today i bought a new master cylinder and I got all the air out of the lines. when the car is off the pedal is hard like how it is supposed to be. But when I turn the car on it gets spongy right away. Can it be a bad brake booster? I can not find any leaks anywhere.
hes told ya twice now that if your booster is bad the pedal will be hard while driving not spongy...

check this out

http://www.youtube.com/user/ericthec...43/KIQIBLGoZJ4
lunareg is offline   Reply With Quote
Old 08-26-2010, 09:12 AM   #12
RonJ@HT
Raising the bar
2000 Honda Civic
My Garage
 
RonJ@HT's Avatar
 
Join Date: Feb 2008
Location: Houston, Texas
Posts: 34,219
iTrader Rating: (0)
Default Re: ‼ Brake Booster Question soft spongy brake pedal feel.‼

Buy the inexpensive One Man Bleed Tool and then bleed the brake system like this:

Click the image to open in full size.
__________________
Don't guess, troubleshoot.
Useful tech links -- FAQs; Codes; Check Spark; Test Fuses; Fuse 15 TSB; Clean IACV or FITV
RonJ@HT is offline   Reply With Quote
 
 
 
submit to reddit
Reply

Tags
95, 96, booster, brake, brakes, break, car, civic, firm, honda, location, pedal, pump, soft, spongy, symptoms, tech

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
Forum Jump



All times are GMT -8. The time now is 05:02 AM.



2008 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details