Brake Light On Dash Stays On - Help..... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BCOWANWHEELS · 06-18-2007, 11:19 PM

My Red Brake Light On The Dash Board Stays On Constantly WHEN ING. SWITCH IS ON . I Unplugged The Wire On The Porp. Valve And It Went Off. Any Ideas On This And Where Could I Get A Sender For My Porp. Valve If It Is The Problem. master cylinder is full of fluid also.
Thanks Again.
Bob In Tn.

dave2953 · 06-18-2007, 11:27 PM

Is the wire cut/sliced anywhere? My temp guage wire was sliced and grounding out, causing the light to stay on. May not be your problem, but I thought I'd throw it out there.

Longhorn Man · 06-18-2007, 11:38 PM

if it turns off when unplugged, then it is working properly.
This means you have an imballance in the brakes hyd system.
Have you just worked on the brakes?

BCOWANWHEELS · 06-18-2007, 11:40 PM

no work done on brake system. just want to get all the bugs out and get everything workin right.i am gonna pull the tires and check all brakes though. i just got this truck. appears to be all original.
bob

Longhorn Man · 06-18-2007, 11:42 PM

Do a good inspection, You may well find a leaking line or brake cylinder.

BCOWANWHEELS · 06-19-2007, 02:40 PM

10-4

sb69chevy · 06-19-2007, 02:51 PM

After having my brakes worked on, my light stayed on...because it was pinched between the firewall and m/c.

Longhorn Man · 06-19-2007, 06:34 PM

he said his turns off when he unplugs the wire at the prop valve/dist valve (which ever it is, he never mentioned theyear) Since it turns off, the wire is grounding at the switch inside the valve, and not on the firewall. (like when pinched)

cdowns · 06-19-2007, 07:19 PM

did you pop the top of the master cyl and see if you got fluid?// theres a pin on the front of the combination valve sometimes covered by a rubber bubble try pushing it in while somebody applys the brakes to reset it

BCOWANWHEELS · 06-20-2007, 12:02 AM

well think i found the problem...... right rear wheel cylinder leaking, rear resivor in m/c empty. looks like its time to do rear brakes 100%. might as well do wheel bearing, wheel seals and install synthetic lube in diff with new posi additive.... boy the guy i got this truck from sure never did maintience at all. i dont think he realized what a nice truck he had. glad its mine now and it will be looked after as i never plan on sellin it.... thanks guys for the help i,ll keep you posted. bet it needs rear drums !!!!!
bob

cdowns · 06-20-2007, 06:56 AM

most synthetic rear gear lubes dont require a posi additive// i use royal purple

06-18-2007, 11:19 PM	#1
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Brake Light On Dash Stays On - Help..... My Red Brake Light On The Dash Board Stays On Constantly WHEN ING. SWITCH IS ON . I Unplugged The Wire On The Porp. Valve And It Went Off. Any Ideas On This And Where Could I Get A Sender For My Porp. Valve If It Is The Problem. master cylinder is full of fluid also. Thanks Again. Bob In Tn. __________________ I BELIEVE IN JOHN 3:16 Last edited by BCOWANWHEELS; 06-18-2007 at 11:20 PM.

06-18-2007, 11:27 PM	#2
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: Brake Light On Dash Stays On - Help..... Is the wire cut/sliced anywhere? My temp guage wire was sliced and grounding out, causing the light to stay on. May not be your problem, but I thought I'd throw it out there. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250

06-18-2007, 11:38 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Brake Light On Dash Stays On - Help..... if it turns off when unplugged, then it is working properly. This means you have an imballance in the brakes hyd system. Have you just worked on the brakes?

06-18-2007, 11:40 PM	#4
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: Brake Light On Dash Stays On - Help..... no work done on brake system. just want to get all the bugs out and get everything workin right.i am gonna pull the tires and check all brakes though. i just got this truck. appears to be all original. bob __________________ I BELIEVE IN JOHN 3:16 Last edited by BCOWANWHEELS; 06-18-2007 at 11:41 PM.

06-18-2007, 11:42 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Brake Light On Dash Stays On - Help..... Do a good inspection, You may well find a leaking line or brake cylinder.

06-19-2007, 02:40 PM	#6
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: Brake Light On Dash Stays On - Help..... 10-4 __________________ I BELIEVE IN JOHN 3:16

06-19-2007, 02:51 PM	#7
sb69chevy Registered User Join Date: Oct 2006 Location: Springfield, MO Posts: 375	Re: Brake Light On Dash Stays On - Help..... After having my brakes worked on, my light stayed on...because it was pinched between the firewall and m/c. __________________ 1969 C/10 swb, 350, powerglide (daily driver) 2005 CRV (wife's ride)

06-19-2007, 06:34 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Brake Light On Dash Stays On - Help..... he said his turns off when he unplugs the wire at the prop valve/dist valve (which ever it is, he never mentioned theyear) Since it turns off, the wire is grounding at the switch inside the valve, and not on the firewall. (like when pinched)

06-19-2007, 07:19 PM	#9
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Brake Light On Dash Stays On - Help..... did you pop the top of the master cyl and see if you got fluid?// theres a pin on the front of the combination valve sometimes covered by a rubber bubble try pushing it in while somebody applys the brakes to reset it __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

06-20-2007, 12:02 AM	#10
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: Brake Light On Dash Stays On - Help..... well think i found the problem...... right rear wheel cylinder leaking, rear resivor in m/c empty. looks like its time to do rear brakes 100%. might as well do wheel bearing, wheel seals and install synthetic lube in diff with new posi additive.... boy the guy i got this truck from sure never did maintience at all. i dont think he realized what a nice truck he had. glad its mine now and it will be looked after as i never plan on sellin it.... thanks guys for the help i,ll keep you posted. bet it needs rear drums !!!!! bob __________________ I BELIEVE IN JOHN 3:16

06-20-2007, 06:56 AM	#11
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Brake Light On Dash Stays On - Help..... most synthetic rear gear lubes dont require a posi additive// i use royal purple __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY



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