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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-28-2007, 10:13 AM   #1
JIMS1972STEPSIDE
Junior Member
 
JIMS1972STEPSIDE's Avatar
 
Join Date: Jan 2006
Location: SPARKS
Posts: 62
Brake Light

Hi, I put some brake fluid into the rear portion of the master cylinder as it was very low or empty (manual brakes) on my 1972 C-10 and the brake light stays on on the dash now, any thoughts.
__________________
1970 SILVER CORVETTE COUPE AUTO
1971 SILVER CORVETTE COUPE 4 SPEED
1972 RED C-10 STEPSIDE 3 SPEED
1985 WHITE S-10 BLAZER AUTO
1998 WHITE S-10 4WD PICKUP AUTO
2006 SILVER H-D DYNA LOW RIDER
JIMS1972STEPSIDE is offline   Reply With Quote
Old 01-28-2007, 10:43 AM   #2
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: Brake Light

time to bleed the brakes. Maybe you'll see whwew all the brake fluid is draining out too.
Longhorn Man is offline   Reply With Quote
Old 01-28-2007, 07:07 PM   #3
marvxyz1
Registered User
 
marvxyz1's Avatar
 
Join Date: Oct 2005
Location: Pittsburgh, Pa
Posts: 106
Re: Brake Light

Could be MC push rod is knocking your brake light switch out of position while rebounding when brake is released. I've had same trouble on my 80 GMC, and have been totally unable to resolve problem yet. Tried a new MC seemed to help a little, but still have same problem, Duct taped the switch cures the problem, but is not ultimate cure. Marvxyz
marvxyz1 is offline   Reply With Quote
Old 01-28-2007, 08:35 PM   #4
cooters
Senior Member
 
Join Date: Oct 2006
Location: Edmonton Alberta
Posts: 458
Re: Brake Light

double check that the prop valve isnt tripped to one side. Check that the brakes work front and back.
cooters is offline   Reply With Quote
Old 01-28-2007, 08:53 PM   #5
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: Brake Light

if one side of the master cylinder was almost empty, then the switch is doing the job it is intended to do.
Longhorn Man is offline   Reply With Quote
Reply

Bookmarks


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 06:04 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com