Turn signal help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

brad20653 · 09-07-2003, 03:36 PM

I click the right one works perfect, Click the left one it blinks BUT the right one blinks too not as bright though ? Where are the wires i should check? Pics would help of what i should check. Thanks

cheatham · 09-07-2003, 04:04 PM

I had the same problem simply changing out both blinker and hazzard flashers solved it.

brad20653 · 09-07-2003, 04:27 PM

I just put two new ones in still doin it. Any other ideas ?

PanelDeland · 09-07-2003, 05:01 PM

Check to be sure you have good grounds at both sockets.The # of electrical ???s on this board that have been solved by tracing out a bad ground are almost as numerous as electrical problems period.It seems that over the years many of the ground wires on these trucks get loose or deleted and cause all types of electrical gremlins.

brad20653 · 09-07-2003, 05:02 PM

Where are the sockets your talking about ?

brad20653 · 09-07-2003, 07:47 PM

ttt

brad20653 · 09-07-2003, 09:07 PM

ttt

tyger25 · 09-07-2003, 11:30 PM

Does it blink in the front and rear, or just one?

Longhorn Man · 09-07-2003, 11:43 PM

Have you tried swapping bulbs yet?

brad20653 · 09-08-2003, 08:21 AM

Yes I put new bulbs in

brad20653 · 09-08-2003, 08:25 AM

It blinks in front and rear

jcalisi · 09-08-2003, 08:53 AM

Mine does the same thing only either way you turn it it lights boths sides front and back... Very annoying I'm getting tired of using hand signals. Plus, I don't think many people know what the hell I'm doing when I put my arm out the window.

JimKshortstep4x4 · 09-08-2003, 09:01 AM

I would suggest working on the light that is dim. It almost has to be a ground. The sockets lose ground between the socket and housing where they are swedged in . With the blinker on and the lens off, use a well grounded wire and touch the socket/bulb to see if it will brighten up.

Is the dim one in front or rear?

Jim

brad20653 · 09-08-2003, 10:16 AM

rear

71GMC_3/4T · 09-08-2003, 12:59 PM

Did you put the bulb in backwards? It's hard to do, but apparently (judging from other cars driving around at night) it can be done.
Turn on your park lights. If the one that was dim when the T/S was on is now brighter than the other side, you've put the bulb in backwards.

brad20653 · 09-08-2003, 05:46 PM

still doing it

71GMC_3/4T · 09-09-2003, 12:38 PM

Look at the filaments when the turn signal is on. The fatter one should be lighting up, I think. If in doubt, look at the other side and verify that the same filaments are lighting.
You may have a weak wire (gone resistive) or contact.
It might also help to clean the part of the socket that contacts the base of the lamp. Sometimes you can bend the sides in a little to get it to work better.
Keep us posted! And good luck finding it!!

brad20653 · 09-09-2003, 01:03 PM

ty

09-07-2003, 03:36 PM	#1
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	Turn signal help I click the right one works perfect, Click the left one it blinks BUT the right one blinks too not as bright though ? Where are the wires i should check? Pics would help of what i should check. Thanks __________________ Soon to have 68 SWB 350 with Turbo350

09-07-2003, 04:04 PM	#2
cheatham I need a brake! Join Date: Jul 2002 Location: Nashville, TN Posts: 474	I had the same problem simply changing out both blinker and hazzard flashers solved it. __________________ JP MEMBER OF THE DISCS UP FRONT CLUB 1971 Chevy C10

09-07-2003, 04:27 PM	#3
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	I just put two new ones in still doin it. Any other ideas ? __________________ Soon to have 68 SWB 350 with Turbo350

09-07-2003, 05:01 PM	#4
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Check to be sure you have good grounds at both sockets.The # of electrical ???s on this board that have been solved by tracing out a bad ground are almost as numerous as electrical problems period.It seems that over the years many of the ground wires on these trucks get loose or deleted and cause all types of electrical gremlins. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

09-07-2003, 05:02 PM	#5
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	Where are the sockets your talking about ? __________________ Soon to have 68 SWB 350 with Turbo350

09-07-2003, 07:47 PM	#6
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	ttt __________________ Soon to have 68 SWB 350 with Turbo350

09-07-2003, 09:07 PM	#7
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	ttt __________________ Soon to have 68 SWB 350 with Turbo350

09-07-2003, 11:30 PM	#8
tyger25 Registered User Join Date: Jun 2003 Location: Little Rock, Ar Posts: 124	Does it blink in the front and rear, or just one? __________________ U.S.A.F. 68' C-10 Stepside 305 w/ 4 speed

09-07-2003, 11:43 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Have you tried swapping bulbs yet?

09-08-2003, 08:21 AM	#10
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	Yes I put new bulbs in __________________ Soon to have 68 SWB 350 with Turbo350

09-08-2003, 08:25 AM	#11
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	It blinks in front and rear __________________ Soon to have 68 SWB 350 with Turbo350

09-08-2003, 08:53 AM	#12
jcalisi Registered User Join Date: Feb 2001 Location: Nashville, TN Posts: 126	Mine does the same thing only either way you turn it it lights boths sides front and back... Very annoying I'm getting tired of using hand signals. Plus, I don't think many people know what the hell I'm doing when I put my arm out the window. __________________ Jon 1968 C10 Custom

09-08-2003, 09:01 AM	#13
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	I would suggest working on the light that is dim. It almost has to be a ground. The sockets lose ground between the socket and housing where they are swedged in . With the blinker on and the lens off, use a well grounded wire and touch the socket/bulb to see if it will brighten up. Is the dim one in front or rear? Jim

09-08-2003, 10:16 AM	#14
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	rear __________________ Soon to have 68 SWB 350 with Turbo350

09-08-2003, 12:59 PM	#15
71GMC_3/4T Weapons Of Construction Join Date: Apr 2000 Location: Colorado, USA Posts: 1,095	Did you put the bulb in backwards? It's hard to do, but apparently (judging from other cars driving around at night) it can be done. Turn on your park lights. If the one that was dim when the T/S was on is now brighter than the other side, you've put the bulb in backwards. __________________ 1971 GMC 2500, 402/TH400 4.10 Daily Driver Lafayette, CO



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09-08-2003, 05:46 PM	#16
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	still doing it __________________ Soon to have 68 SWB 350 with Turbo350

09-09-2003, 12:38 PM	#17
71GMC_3/4T Weapons Of Construction Join Date: Apr 2000 Location: Colorado, USA Posts: 1,095	Look at the filaments when the turn signal is on. The fatter one should be lighting up, I think. If in doubt, look at the other side and verify that the same filaments are lighting. You may have a weak wire (gone resistive) or contact. It might also help to clean the part of the socket that contacts the base of the lamp. Sometimes you can bend the sides in a little to get it to work better. Keep us posted! And good luck finding it!! __________________ 1971 GMC 2500, 402/TH400 4.10 Daily Driver Lafayette, CO

09-09-2003, 01:03 PM	#18
brad20653 Senior Member Join Date: Jul 2003 Location: So. MD Posts: 218	ty __________________ Soon to have 68 SWB 350 with Turbo350

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