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Old 06-18-2007, 11:19 PM   #1
BCOWANWHEELS
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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.
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Old 06-18-2007, 11:27 PM   #2
dave2953
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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.
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Old 06-18-2007, 11:38 PM   #3
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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?
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Old 06-18-2007, 11:40 PM   #4
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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
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Old 06-18-2007, 11:42 PM   #5
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Re: Brake Light On Dash Stays On - Help.....

Do a good inspection, You may well find a leaking line or brake cylinder.
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Old 06-19-2007, 02:40 PM   #6
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Re: Brake Light On Dash Stays On - Help.....

10-4
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Old 06-19-2007, 02:51 PM   #7
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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.
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Old 06-19-2007, 06:34 PM   #8
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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)
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Old 06-19-2007, 07:19 PM   #9
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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
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Old 06-20-2007, 12:02 AM   #10
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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
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Old 06-20-2007, 06:56 AM   #11
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Re: Brake Light On Dash Stays On - Help.....

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