No Brake lights or turn sigs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

smoked68 · 06-17-2014, 08:54 AM

Hi guys, we installed the led tail light assemblies with the led flasher. Now I have nothing?? the running lights come on, just no brake or turn sigs. I am at a loss, Help. I thank you in advance, Mike

smoked68 · 06-17-2014, 08:56 AM

And yes everything is plugged up correctly. Gotta be these leds??

sboris · 06-17-2014, 09:27 AM

Make sure and triple check all your grounds. Could try plugging the old ones back in to see what you've got to isolate it.
Double check the LEDs are for a twelve volt system. Had that happen once. Throws everything off.. Just some thoughts

smoked68 · 06-17-2014, 11:43 AM

Bought all from LMC, lights and the flasher. Supposed to be for the 68?? I do not have the instuctions on the flasher anymore the body guy tossed. How does it wire up, I know it would not plug into the factory flasher place??

RManson · 06-17-2014, 12:39 PM

You might have to ground the taillight housing directly to the body, but I'm not sure how the LED setup is designed. I know I've had a similar issue with the stock assemblies on a new bedside. Attach a ground wire to the housing and one to a good body ground and see where you're at. Good luck and post some pics when you're done!

smoked68 · 06-17-2014, 02:29 PM

Will do and thanks

06-17-2014, 08:54 AM	#1
smoked68 Registered User Join Date: Oct 2006 Location: Rock Hill, SC Posts: 421	No Brake lights or turn sigs Hi guys, we installed the led tail light assemblies with the led flasher. Now I have nothing?? the running lights come on, just no brake or turn sigs. I am at a loss, Help. I thank you in advance, Mike __________________ 1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom

06-17-2014, 08:56 AM	#2
smoked68 Registered User Join Date: Oct 2006 Location: Rock Hill, SC Posts: 421	Re: No Brake lights or turn sigs And yes everything is plugged up correctly. Gotta be these leds?? __________________ 1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom

06-17-2014, 09:27 AM	#3
sboris Registered User Join Date: Jun 2011 Location: Osceola, Ia Posts: 2,017	Re: No Brake lights or turn sigs Make sure and triple check all your grounds. Could try plugging the old ones back in to see what you've got to isolate it. Double check the LEDs are for a twelve volt system. Had that happen once. Throws everything off.. Just some thoughts __________________ Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039

06-17-2014, 11:43 AM	#4
smoked68 Registered User Join Date: Oct 2006 Location: Rock Hill, SC Posts: 421	Re: No Brake lights or turn sigs Bought all from LMC, lights and the flasher. Supposed to be for the 68?? I do not have the instuctions on the flasher anymore the body guy tossed. How does it wire up, I know it would not plug into the factory flasher place?? __________________ 1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom

06-17-2014, 12:39 PM	#5
RManson Registered User Join Date: Jun 2011 Location: United States Posts: 158	Re: No Brake lights or turn sigs You might have to ground the taillight housing directly to the body, but I'm not sure how the LED setup is designed. I know I've had a similar issue with the stock assemblies on a new bedside. Attach a ground wire to the housing and one to a good body ground and see where you're at. Good luck and post some pics when you're done!

06-17-2014, 02:29 PM	#6
smoked68 Registered User Join Date: Oct 2006 Location: Rock Hill, SC Posts: 421	Re: No Brake lights or turn sigs Will do and thanks __________________ 1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom

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