| Turn signal and headlights [message #327356] |
Wed, 20 December 2017 16:32  |
|
|
hey guys, got an issue with my left turn signal, but only at night. when I turn on the headlights, it fails to flash in the front, and the rear blinks slower. I replaced the head light switch, and cleaned all the contacts, but this still has me baffeled. when the headlights are off it still functions normally as does the right blinker. its only the left that does this. any thoughts?
73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
|
|
|
|
| Re: [GMCnet] Turn signal and headlights [message #327357 is a reply to message #327356] |
Wed, 20 December 2017 17:32  |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
|
Senior Member |
|
|
Bad ground somewhere, Shan.
D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of Shan Rose
Sent: Wednesday, December 20, 2017 16:32
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Turn signal and headlights
hey guys, got an issue with my left turn signal, but only at night. when I turn on the headlights, it fails to flash in the front, and the rear blinks
slower. I replaced the head light switch, and cleaned all the contacts, but this still has me baffeled. when the headlights are off it still functions
normally as does the right blinker. its only the left that does this. any thoughts?
--
73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Flist.gmcnet.org%2Fmailman%2Flistinfo%2Fgmclist_list.gmcnet.org&data=02%7C01%7C%7C c50354dbea4645ddb9f108d547f9b5b8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636494060173022132&sdata=KloJLmiqOEzaPZr79xn7UISb6hGZEUY2wnbsXL%2FkB I4%3D&reserved=0
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
|
|
|
|
|
|
| Re: [GMCnet] Turn signal and headlights [message #327362 is a reply to message #327360] |
Wed, 20 December 2017 18:45 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
|
Senior Member |
|
|
I did not mean to say that these are the only possible causes but are a good place to start looking.
Emery
> On Dec 20, 2017, at 5:26 PM, Emery Stora wrote:
>
> There are three possible causes.
> 1 . corroded or loose contacts on bulbs. Remove bulbs one at a time and clean them and spray in some contact cleaner.
> 2. A broken filament inside a bulb that might be dangling and shorting out.
> You can check 2 as you are checking 1.
> 3. A bad ground. Likely the one in the rear on the inside wall beneath the area of the license plate. That ground is a cluster with about six or eight wires attached. The license plate holder often leaks water to the inside which runs down and rusts the ground cluster. There is a similar ground in the front inside corner by the driver but that is less likely to be the problem
> Check all turn signal bulbs including the ones on the side.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On Dec 20, 2017, at 4:51 PM, James Hupy wrote:
>>
>> Plastic front and rear end caps.
>> Jim Hupy
>>
>>> On Dec 20, 2017 3:45 PM, "Shan Rose" wrote:
>>>
>>> yeah I figured that was probably the case, got an idea where to look first?
>>> --
>>> 73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
| Re: [GMCnet] Turn signal and headlights [message #327363 is a reply to message #327362] |
Wed, 20 December 2017 18:52 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
|
What happens lot ofthe time is that the socket that is stamped inti the
metal housing looses contact at that point.
We sometimes solder a bridge there.
On Wed, Dec 20, 2017 at 4:45 PM, Emery Stora wrote:
> I did not mean to say that these are the only possible causes but are a
> good place to start looking.
>
> Emery
>
>> On Dec 20, 2017, at 5:26 PM, Emery Stora wrote:
>>
>> There are three possible causes.
>> 1 . corroded or loose contacts on bulbs. Remove bulbs one at a time and
> clean them and spray in some contact cleaner.
>> 2. A broken filament inside a bulb that might be dangling and shorting
> out.
>> You can check 2 as you are checking 1.
>> 3. A bad ground. Likely the one in the rear on the inside wall beneath
> the area of the license plate. That ground is a cluster with about six or
> eight wires attached. The license plate holder often leaks water to the
> inside which runs down and rusts the ground cluster. There is a similar
> ground in the front inside corner by the driver but that is less likely to
> be the problem
>> Check all turn signal bulbs including the ones on the side.
>>
>> Emery Stora
>> 77 Kingsley
>> Frederick, CO
>>
>>> On Dec 20, 2017, at 4:51 PM, James Hupy wrote:
>>>
>>> Plastic front and rear end caps.
>>> Jim Hupy
>>>
>>>> On Dec 20, 2017 3:45 PM, "Shan Rose" wrote:
>>>>
>>>> yeah I figured that was probably the case, got an idea where to look
> first?
>>>> --
>>>> 73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
>>>>
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
|
|
|
|
|
|
|
|
| Re: Turn signal and headlights [message #327375 is a reply to message #327372] |
Wed, 20 December 2017 23:11 |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
|
Senior Member |
|
|
Bad ground in the left front. That's why it doesn't work when the headlights are on...there is power on the other side of the load. The rear flashes slower because the load on the flasher from the front is not there anymore when the headlights (or actually just the parking/running lights)are on. Otherwise there is enough of a ground present through other lights on the circuit to make the turn signal work in the front and flash at the normal rate.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
|
|
|
|
| Re: Turn signal and headlights [message #327396 is a reply to message #327356] |
Thu, 21 December 2017 16:54 |
NextGenGMC
Messages: 146
Registered: December 2017
Location: Washington State
Karma: -1
|
Senior Member |
|
|
Does your left front marker light work? I thought the marker light and front turn signal share part of the circuit.
Duce Apocalypse wrote on Wed, 20 December 2017 14:32hey guys, got an issue with my left turn signal, but only at night. when I turn on the headlights, it fails to flash in the front, and the rear blinks slower. I replaced the head light switch, and cleaned all the contacts, but this still has me baffeled. when the headlights are off it still functions normally as does the right blinker. its only the left that does this. any thoughts?
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA
|
|
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
