Why will my rear signal lights work but my brake lights do not??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

corkscrew · 01-29-2007, 02:29 AM

Thanks in advance

FLEET72 · 01-29-2007, 02:43 AM

Possible causes: bad brake light switch, bad turn signal switch, bad connection at aforementioned switches. Is there voltage to the brake light switch? Check the wire that feeds from the brake light switch to the turn signal switch..

http://67-72chevytrucks.com/vboard/s...d.php?t=185665
second picture in the 1st post.

dwaite72lnghrn · 01-29-2007, 06:51 AM

See if you have Dash lights. If they are not working you have a blown fuse. On my '72 dash/inside cab and brakes are on the same fuse.

billy wachter · 01-29-2007, 10:36 AM

Also, make sure ALL conections and grounds are clean!!

67ChevyRedneck · 01-29-2007, 10:43 AM

Did they work before? Do the headlights work? Do the taillights work (stop and tail are on the same wire) The turn signals are a seperate wire. Not tryin to be a smart ass, but have you checked the bulbs? They should be the ones with two filaments.

**Ron 586** · 01-29-2007, 12:24 PM

Quote:

Originally Posted by 67ChevyRedneck

Did they work before? Do the headlights work? Do the taillights work (stop and tail are on the same wire) The turn signals are a seperate wire. Not tryin to be a smart ass, but have you checked the bulbs? They should be the ones with two filaments.

Turn signal and brake light are on one wire. Tail light is on the other.

67ChevyRedneck · 01-29-2007, 12:47 PM

^Oops, my bad. That's right, they both blink off the "bright" filament thingy. That would eliminate the bulbs being bad.

I just did mine a few months ago, I'm dyslexic

68speedalert · 01-29-2007, 01:06 PM

Quote:

Originally Posted by FLEET72

Possible causes: bad brake light switch, bad turn signal switch, bad connection at aforementioned switches. Is there voltage to the brake light switch? Check the wire that feeds from the brake light switch to the turn signal switch..

http://67-72chevytrucks.com/vboard/s...d.php?t=185665
second picture in the 1st post.

Also check brake lite switch adjustment....

01-29-2007, 02:29 AM	#1
corkscrew Registered User Join Date: Aug 2006 Location: Canada Posts: 254	Why will my rear signal lights work but my brake lights do not??? Thanks in advance

01-29-2007, 02:43 AM	#2
FLEET72 Registered User Join Date: Jan 2007 Location: Sonoma, CA Posts: 521	Re: Why will my rear signal lights work but my brake lights do not??? Possible causes: bad brake light switch, bad turn signal switch, bad connection at aforementioned switches. Is there voltage to the brake light switch? Check the wire that feeds from the brake light switch to the turn signal switch.. http://67-72chevytrucks.com/vboard/s...d.php?t=185665 second picture in the 1st post. __________________ Oscar '72 Shortbed Fleetside '95 Jimmy 4X4 '69 GMC Custom Camper

01-29-2007, 06:51 AM	#3
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Re: Why will my rear signal lights work but my brake lights do not??? See if you have Dash lights. If they are not working you have a blown fuse. On my '72 dash/inside cab and brakes are on the same fuse. __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne

01-29-2007, 10:36 AM	#4
billy wachter Registered User Join Date: Jul 2006 Location: Lake Carmel N.Y. Posts: 3	Re: Why will my rear signal lights work but my brake lights do not??? Also, make sure ALL conections and grounds are clean!!

01-29-2007, 10:43 AM	#5
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Why will my rear signal lights work but my brake lights do not??? Did they work before? Do the headlights work? Do the taillights work (stop and tail are on the same wire) The turn signals are a seperate wire. Not tryin to be a smart ass, but have you checked the bulbs? They should be the ones with two filaments. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

01-29-2007, 12:47 PM	#7
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Why will my rear signal lights work but my brake lights do not??? ^Oops, my bad. That's right, they both blink off the "bright" filament thingy. That would eliminate the bulbs being bad. I just did mine a few months ago, I'm dyslexic __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 01-29-2007 at 12:48 PM.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.