Home » Public Forums » GMCnet » LED tail light conversion
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| Re: LED tail light conversion [message #251143 is a reply to message #251138] |
Sat, 31 May 2014 23:11   |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Richard Andis wrote on Sat, 31 May 2014 21:11FYI,.....still running incandescent on the front. That should be enough resistance to keep a standard flasher going.
nope
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: LED tail light conversion [message #251145 is a reply to message #251143] |
Sun, 01 June 2014 01:09 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Bob de Kruyff wrote on Sat, 31 May 2014 23:11Richard Andis wrote on Sat, 31 May 2014 21:11FYI,.....still running incandescent on the front. That should be enough resistance to keep a standard flasher going.
nope
Agreed. You need a 3 pin variable load flasher.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: LED tail light conversion [message #251147 is a reply to message #251146] |
Sun, 01 June 2014 06:23 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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My LED taillights work just fine with the installed flasher. No change was needed. I believe that it really depends upon the LEDs you replaced the OEM bulb with. Front filament bulbs should provide enough resistance to operate the flasher.
If I change the flasher, it will be to get a louder one.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] LED tail light conversion [message #251160 is a reply to message #251143] |
Sun, 01 June 2014 10:48 |
sgltrac
Messages: 2797
Registered: April 2011
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Yep. I have all led except front signals and existing flasher works.
Todd Sullivan
Sully
77 royale
Seattle
> On May 31, 2014, at 9:11 PM, Bob de Kruyff wrote:
>
> Richard Andis wrote on Sat, 31 May 2014 21:11
>> FYI,.....still running incandescent on the front. That should be enough resistance to keep a standard flasher going.
>
> nope
> --
> Bob de Kruyff
> 78 Eleganza
> Chandler, AZ
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] LED tail light conversion [message #251161 is a reply to message #251160] |
Sun, 01 June 2014 11:17 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma: 3
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I didn't see it mentioned - but keep in mind you may have issues with your cruise control, if your brake lights are changed to LED.
I added a resistor near the brake pedal to fix the issue.
Rob
76 Royale
Victoria, BC
> On Jun 1, 2014, at 8:48 AM, Todd Sullivan wrote:
>
> Yep. I have all led except front signals and existing flasher works.
>
> Todd Sullivan
>
> Sully
> 77 royale
> Seattle
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Rob -
Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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| Re: [GMCnet] LED tail light conversion [message #251162 is a reply to message #251160] |
Sun, 01 June 2014 12:17 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
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sgltrac wrote on Sun, 01 June 2014 09:48Yep. I have all led except front signals and existing flasher works.
Todd Sullivan
Sully
77 royale
Seattle
> On May 31, 2014, at 9:11 PM, Bob de Kruyff wrote:
>
> Richard Andis wrote on Sat, 31 May 2014 21:11
>> FYI,.....still running incandescent on the front. That should be enough resistance to keep a standard flasher going.
>
> nope
> --
> Bob de Kruyff
> 78 Eleganza
> Chandler, AZ
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This depends on whether you have a single or a dual flasher coach. Some people may also have installed a HD flasher in place of a load sensing flasher.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: LED tail light conversion [message #251172 is a reply to message #251147] |
Sun, 01 June 2014 13:30 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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tphipps wrote on Sun, 01 June 2014 06:23
If I change the flasher, it will be to get a louder one.
Tom, MS II
You can have the one I took out - continuous high pitched whine/buzz/shreik while turn signals are activated. Hard to believe as this was a Florida coach and they have the "eventual left" law: "you may leave the left turn signal on so long as you plan on making a left turn sometime that day...".
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] LED tail light conversion [message #251187 is a reply to message #251172] |
Sun, 01 June 2014 16:09 |
Kingsley Coach
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
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Now how old is ;Rob
He has issues, I have problems !
Mike
On Sun, Jun 1, 2014 at 3:30 PM, Joe Weir wrote:
> tphipps wrote on Sun, 01 June 2014 06:23
>> If I change the flasher, it will be to get a louder one.
>> Tom, MS II
>
>
> You can have the one I took out - continuous high pitched
> whine/buzz/shreik while turn signals are activated. Hard to believe as
> this was a Florida
> coach and they have the "eventual left" law: "you may leave the left turn
> signal on so long as you plan on making a left turn sometime that day...".
>
>
> --
> 76 Birchaven - New engine, trans, brakes, airbags, fuel lines, seats,
> upholstery, adult beverage center... those Coachmen guys were really
> thinking
> about us second hand owners...
> Columbia, SC.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
* This is my second trip through the 60's; the first time the drugs were
better !
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| Re: [GMCnet] LED tail light conversion [message #251244 is a reply to message #251187] |
Sun, 01 June 2014 22:24 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma: 3
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Kingsley Coach wrote on Sun, 01 June 2014 14:09Now how old is ;Rob
He has issues, I have problems !
Mike
I've looked at pictures of the rally attendees and I'm likely towards the young end of the average!
But having said that - a non-functioning cruise control can't be considered much more than an "issue", can it?!?
Rob -
Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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| Re: LED tail light conversion [message #251247 is a reply to message #251137] |
Sun, 01 June 2014 22:46 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Harry wrote on Sat, 31 May 2014 21:03The LED lights draw less power. You will need a different flasher.
Someone here will know which one.
There are 2 different flasher configurations in GMC motorhomes. Early coaches had one flasher for both 4 way and turn signal use. Those flashers will flash any number of bulbs regardless of what they are. NHTSA in the later part of the 70's required a driver indication if any turn signal bulbs were burned out. So the industry went to 2 separate flashers--one for 4 way and another for turn signals. Later GMC's had 2 flashers and LED bulbs may upset the current sensing flasher. However, over the years many people have replaced the turn signal flasher with so called heavy duty flashers that have no current sensing ability. So the bottom line is that the use of led bulbs in early, late or modified coaches will have very different results.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: LED tail light conversion [message #251295 is a reply to message #251291] |
Mon, 02 June 2014 11:57 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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Richard Andis wrote on Mon, 02 June 2014 10:32I like the LED conversions mostly for safety reasons. They are brighter than the conventional incandescent bulbs, especially during the day, and they seem to last longer.
My only issue with this type of upgrade is that there is no "reflector" for nighttime. Meaning, If you are parked (or stranded) alongside the road and unable to power up the LEDs then there's nothing that other drivers can see from the rear. Granted reflectors have limited range, but they are better than nothing. Guess you could put some prismatic tape somewhere on the rear, but that may not be cosmetically pleasing. I also wonder whether there's any US or State DOT requirement for non-powered reflective device required on motor vehicles.
Another thing to consider is since LEDs give off little to no heat, they will not melt off accumulated ice or snow. Probably not a big issue in this application.
FMVSS 108 does require reflective treatment which is usually part of the tail lamp lens itself although it doesn't have to be. I suspect you are still using the standard GM outer plastic lens.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: LED tail light conversion [message #251331 is a reply to message #251295] |
Mon, 02 June 2014 19:01 |
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Richard Andis
Messages: 261
Registered: January 2013
Location: HELL Paso, TX
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Bob de Kruyff wrote on Mon, 02 June 2014 10:57
FMVSS 108 does require reflective treatment which is usually part of the tail lamp lens itself although it doesn't have to be. I suspect you are still using the standard GM outer plastic lens.
Unfortunately, this conversion removes the OEM tail light lense lens. It is replaced by a stainless steel plate and seal. The plate has a hole in the center where the LED light mounts. Maybe the fix for this would be to put the reflective tape on one side of the plate.
This is not my conversion. I just sort of inherited the blinker issue. Personally, I like the traditional red and white lens. I just would like them brighter.
Valhalla - 1978 GMC Royale rear twin [SOLD]
Walküre - 1974 VW Thing (Toad)
[Updated on: Mon, 02 June 2014 19:04] Report message to a moderator |
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. The parts manual calls out P/N 491392. This crosses over to an EF-32 flasher which is 2 pin. Is the EF-32 The correct flasher?
