Flashers not working - The 1947 - Present Chevrolet & GMC Truck Message Board Network

J_PEPIN87 · 03-09-2009, 02:13 PM

The emergency flashers on my '74 are not working but the turn signals, brake lights, and regular night lights work fine. When i push the button for the flashers nothing happens but with the switch on when i step on the brake pedal both arrows light up on the dash but no flashing.i already replaced both flashers on the fuse box what should i check next.

tvblazer78 · 03-09-2009, 05:29 PM

You may have a bad flasher in your truck, it;s a small box that looks like a relay next to your fuse box. Try changing that out first.

Can anyone think of anything more that it could be?

powerdriver 1958 · 03-09-2009, 05:36 PM

Some had two flashers,one for turn signals, one emergency flashers.Common trick back in the day was if the turn signal flasher quit was to rob the E. flasher

J_PEPIN87 · 03-10-2009, 10:34 AM

Quote:

Originally Posted by powerdriver 1958

some had two flashers,one for turn signals, one emergency flashers.common trick back in the day was if the turn signal flasher quit was to rob the e. Flasher

thanks that picture help a lot i'll be going to the parts store today to buy them, are all the flashers on the counter at the parts store THE SAME or is there specific ones for our trucks?thanks!

rick1956 · 03-10-2009, 06:07 PM

They just go by how many lugs they plug in with. Some are two lug and some are three. I think most of our trucks are two-lug.

My preference it to replace the OEM with an electronic. They're a little more expensive though at about 10 bucks. They look almost the same as the OEM's but they're clear plastic. Why do I like em? They flash more consistently and I can hear their click better. (too much Led Zeppelin in the day...)

J_PEPIN87 · 03-10-2009, 06:12 PM

Quote:

Originally Posted by rick1956

they just go by how many lugs they plug in with. Some are two lug and some are three. I think most of our trucks are two-lug.

My preference it to replace the oem with an electronic. They're a little more expensive though at about 10 bucks. They look almost the same as the oem's but they're clear plastic. Why do i like em? They flash more consistently and i can hear their click better. (too much led zeppelin in the day...)

thanks i'll go to the parts store today and check out the electronic ones too.

84 400 · 03-10-2009, 06:50 PM

yeah electronic are much better. espescailly if you plan on running them with LED bulbs you will need the elctronic because of the resistance issues with LED bulbs. They are also sometimes refered to as trailer ones because the supply better power reguardless of the added resitance of trailer wireing

willett · 03-10-2009, 07:13 PM

if it doesn't fix the problem, try another flasher.
i have had bad flashers come right out of the box before

tvblazer78 · 03-10-2009, 09:46 PM

Good stuff guys Thanks!

J_PEPIN87 · 03-11-2009, 09:06 AM

Ok i think i found the problem. Yesterday after work i went to buy a new flasher and when i went to put it on it seem to fit loose on one side, and when i looked in the fuse box the connector wasn't there. It seems that one of the connectors on fuse box got pushed back but i couldn't find it, so today after work i'll be pulling the fuse box off the fire wall. Thanks a lot though guys great help.

03-09-2009, 02:13 PM	#1
J_PEPIN87 Registered User Join Date: Sep 2008 Location: PASADENA,TX Posts: 206	Flashers not working The emergency flashers on my '74 are not working but the turn signals, brake lights, and regular night lights work fine. When i push the button for the flashers nothing happens but with the switch on when i step on the brake pedal both arrows light up on the dash but no flashing.i already replaced both flashers on the fuse box what should i check next.

03-09-2009, 05:29 PM	#2
tvblazer78 Low & Fast! Join Date: Jan 2007 Location: Knoxville, TN Posts: 3,110	Re: Flashers not working You may have a bad flasher in your truck, it;s a small box that looks like a relay next to your fuse box. Try changing that out first. Can anyone think of anything more that it could be? __________________ Southeastern Mini Truckin' Nationals April 27 and 28, 2012

03-09-2009, 05:36 PM	#3
powerdriver 1958 Kid's Mechanic Join Date: Nov 2006 Location: Kansas City Posts: 8,241	Re: Flashers not working Some had two flashers,one for turn signals, one emergency flashers.Common trick back in the day was if the turn signal flasher quit was to rob the E. flasher Attached Images Last edited by powerdriver 1958; 03-09-2009 at 06:04 PM.

03-10-2009, 06:07 PM	#5
rick1956 Registered User Join Date: Jan 2009 Location: Edgewood, WA Posts: 108	Re: Flashers not working They just go by how many lugs they plug in with. Some are two lug and some are three. I think most of our trucks are two-lug. My preference it to replace the OEM with an electronic. They're a little more expensive though at about 10 bucks. They look almost the same as the OEM's but they're clear plastic. Why do I like em? They flash more consistently and I can hear their click better. (too much Led Zeppelin in the day...) __________________ I may be old, but I still enjoy the feeling of the earth rotating beneath my wheels...

03-10-2009, 06:50 PM	#7
84 400 Sb 400 club Join Date: Nov 2005 Location: NH / MA Posts: 2,746	Re: Flashers not working yeah electronic are much better. espescailly if you plan on running them with LED bulbs you will need the elctronic because of the resistance issues with LED bulbs. They are also sometimes refered to as trailer ones because the supply better power reguardless of the added resitance of trailer wireing __________________ 1984 chevy c10, built 400sb,.(SOLD) 77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363 1956 Willys Wagon (327 chevy) Project (Now Buick 225) 1980 Corvette L-48 4 speed 1992 Mustang GT built 5.0 5 speed 1985 C10 LWB Sold 1982 K10 SWB plow truck Parted out 1986 D30 M1028 fire brush truck Parted out

03-10-2009, 07:13 PM	#8
willett Another Day, Another Dollar Join Date: Nov 2008 Location: North Vancouver, BC Posts: 1,316	Re: Flashers not working if it doesn't fix the problem, try another flasher. i have had bad flashers come right out of the box before __________________ -78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square"

03-10-2009, 09:46 PM	#9
tvblazer78 Low & Fast! Join Date: Jan 2007 Location: Knoxville, TN Posts: 3,110	Re: Flashers not working Good stuff guys Thanks! __________________ Southeastern Mini Truckin' Nationals April 27 and 28, 2012

03-11-2009, 09:06 AM	#10
J_PEPIN87 Registered User Join Date: Sep 2008 Location: PASADENA,TX Posts: 206	Re: Flashers not working Ok i think i found the problem. Yesterday after work i went to buy a new flasher and when i went to put it on it seem to fit loose on one side, and when i looked in the fuse box the connector wasn't there. It seems that one of the connectors on fuse box got pushed back but i couldn't find it, so today after work i'll be pulling the fuse box off the fire wall. Thanks a lot though guys great help.

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