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 01-02-2013, 11:03 PM   #1
montefreak
Registered User
 
montefreak's Avatar
 
Join Date: Dec 2009
Location: new castle,pa
Posts: 137
stumped????

We are in the process of pulling the inline 6 for the new power plant and came upon these two little items .....can anyone clue us in on what they are.....
the first pic is a sensor of some sort on the block above the starter......the second pic is a sensor or something in the brake proportioning valve....

thank you all in advance../..
Attached Images
  
__________________
montefreak is offline   Reply With Quote
Old 01-02-2013, 11:08 PM   #2
Livrat
Member #1049
 
Livrat's Avatar
 
Join Date: Jun 2000
Location: Troy Montana
Posts: 3,940
Re: stumped????

the one on the block is your oil pressure sending unit, the one on the brake distribution valve is for the brake warning light on the dash
Livrat is offline   Reply With Quote
Old 01-02-2013, 11:14 PM   #3
montefreak
Registered User
 
montefreak's Avatar
 
Join Date: Dec 2009
Location: new castle,pa
Posts: 137
Re: stumped????

Thank you Livrat....i understand theoil pressure but what about the brake sensor....would that let you know if the fluid was low or something like that???
__________________
montefreak is offline   Reply With Quote
Old 01-02-2013, 11:24 PM   #4
bonnieclyde100
Registered User
 
Join Date: Jan 2012
Location: Henderson,TX
Posts: 336
Re: stumped????

the brake switch will let you know low fluid or air in the line. it is set off when there is not enough pressure in the lines
bonnieclyde100 is offline   Reply With Quote
Old 01-03-2013, 01:24 AM   #5
montefreak
Registered User
 
montefreak's Avatar
 
Join Date: Dec 2009
Location: new castle,pa
Posts: 137
Re: stumped????

Thank you so much...
__________________
montefreak is offline   Reply With Quote
Old 01-03-2013, 01:37 AM   #6
DesertCat
Registered User
 
DesertCat's Avatar
 
Join Date: Mar 2011
Location: Valley of the Sunstroke, Arizona
Posts: 1,210
Talking Re: stumped????

Quote:
Originally Posted by bonnieclyde100 View Post
the brake switch will let you know low fluid or air in the line. it is set off when there is not enough pressure in the lines
well, sort of.... now I could be wrong, but I understand the purpose of this sensor it that if one half of the brake hydraulics (front or rear brake reservoir) fails, it would warn you.

The reason for that is the brakes would still stop the truck yet the driver might not notice only half the brakes are working.

If it were simply "not enough pressure in the lines" you would already know - your screaming passengers and the sound of bending metal
__________________
My build thread - Devastation and Reform http://67-72chevytrucks.com/vboard/s...d.php?t=567131
DesertCat is offline   Reply With Quote
Old 01-03-2013, 01:40 AM   #7
montefreak
Registered User
 
montefreak's Avatar
 
Join Date: Dec 2009
Location: new castle,pa
Posts: 137
Re: stumped????

gotcha ma man.....
__________________
montefreak is offline   Reply With Quote
Old 01-03-2013, 01:43 AM   #8
oklalawnboy
Registered User
 
oklalawnboy's Avatar
 
Join Date: Jan 2012
Location: Glencoe Alabama
Posts: 510
Re: stumped????

Quote:
Originally Posted by desertcat View Post
well, sort of.... Now i could be wrong, but i understand the purpose of this sensor it that if one half of the brake hydraulics (front or rear brake reservoir) fails, it would warn you.

The reason for that is the brakes would still stop the truck yet the driver might not notice only half the brakes are working.

If it were simply "not enough pressure in the lines" you would already know - your screaming passengers and the sound of bending metal
x2
__________________
72 Cheyenne super 10
08 3500 HD 4dr dually
12 ford flex (wifes ride)
76 Monte Carlo
83 Chevy short wide Silverado
96 Mazda Miata, 2000 Allegro Bus
oklalawnboy is offline   Reply With Quote
Old 01-03-2013, 01:17 PM   #9
bonnieclyde100
Registered User
 
Join Date: Jan 2012
Location: Henderson,TX
Posts: 336
Re: stumped????

yes if the back brakes dont have enough fluid the pressure in the lines will be lower allowing the switch to trip letting you know something is wrong but the front brakes will still stop you. if the front brakes are low on fluid the pressure in the front lines is low allowing the switch to trip letting you know but the back brakes can still stop you. i didnt mean all lines at the same time. hopefully you would know something is wrong long before that would happen
bonnieclyde100 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 07:04 PM.


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