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 10-14-2005, 11:41 PM   #1
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
warning light for brake

on my 71 c-10 i have disc brakes in front drum in back no power brakes, anyway my brake light was on when i bought the truck checked the fuild its full pull the wire off p vavle light goes off do i have an bad p vavle?
truckdude239 is offline   Reply With Quote
Old 10-15-2005, 01:18 AM   #2
chickenwing
Lovin' Life in Miss.!
 
chickenwing's Avatar
 
Join Date: Mar 2004
Location: Puckett, Mississippi
Posts: 1,937
Mash down on the brakes real hard and the valve should shuttle back to neutral. (Edit: causing the light to go back out.) If it doesn't look for leaks entire system. If no leaky suspect bad master cylinder.

Last edited by chickenwing; 10-15-2005 at 01:19 AM.
chickenwing is offline   Reply With Quote
Old 10-16-2005, 07:18 PM   #3
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
Re: warning light for brake

i mashed the brakes hard light still on i know its not the master cylider because if it was i wouldn't be albe to stop lol plus its not leaking on the out side and i don't think it has an internall leak buecause fuild leavel tays the same
truckdude239 is offline   Reply With Quote
Old 10-16-2005, 08:16 PM   #4
A.P.
Black 72 Chevy
 
A.P.'s Avatar
 
Join Date: May 2002
Location: Los Angeles, California
Posts: 662
Re: warning light for brake

Check the information on this site. I've never tried it. Tell me if does.

http://www.classicperform.com/TechBo...t.htm#testprop

http://www.classicperform.com/TechBo...oubleshoot.htm
A.P. 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 02:39 AM.


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