The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 99-06 Chevy and GMC Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-12-2018, 08:41 PM   #1
hack27e
Registered User
 
Join Date: May 2018
Location: Haddock
Posts: 1
2003 Tahoe Service Brake Booster?

I have a 2003 Chevy Tahoe 2wd 5.3 LS. For a week now the service brake booster message has been showing on the dash. The brake feel really bad as well. They feel almost hard when pressing the pedal. There is also a humming or hissing sound that will show up when applying the brakes.

Not sure if this is related, but there is also an oil leak and the AC went out. I read somewhere that a vacuum leak will cause all three of these.

Thanks!
hack27e is offline   Reply With Quote
Old 05-12-2018, 08:59 PM   #2
95 S_Trucker
Senior Member
 
95 S_Trucker's Avatar
 
Join Date: Oct 2009
Location: Lancaster, PA
Posts: 1,899
Re: 2003 Tahoe Service Brake Booster?

It sounds like there is a hole in your vacuum booster. Check to see if your master cylinder is leaking at the rear. That's the biggest cause of a leaking booster.
__________________
-99 K2500 LS CCSB 7.4
-96 C3500 HD 7.4 NV4500 Rollback
-85 K10 5.7 700r4
-78 K10 5.7 4 Speed
-90 ZR1 5.7 6 Speed
-62 Lincoln Sedan 430 Auto
-61 Lincoln Convertable, 430 Auto


85 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=368864

78 Big10 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=383629

96 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=614515
95 S_Trucker is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 -4. The time now is 12:55 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com