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

creep · 09-09-2009, 07:37 PM

My 63 GMC has factory turn signals but they don't cancel when I turn. Are they suppose to? If not, is there some way to make them self-cancel?

This truck is really showing me just how little I know about old vehicles.

63 & 64 Bowties · 09-09-2009, 08:04 PM

Yes, they're supposed to cancel. Could be a couple things, but you may need a new switch behind the steering wheel.

likaroc13 · 09-09-2009, 11:02 PM

i've got the same issue with my '66...however, left turn will cancel & right turn won't

**Captainfab** · 09-10-2009, 12:49 AM

I'm not sure if they are still available, but you used to be able to buy the plastic 'C' shaped part of the turn signal switch that the handle attaches to. This is what has the cancellation mechanism on it. They just get fatigued and brittle and break off. You might check with some of the aftermarket suppliers.....I haven't bought one in several years.

63 & 64 Bowties · 09-10-2009, 05:42 AM

It's part number 36-0603 at LMC but I wouldn't buy one until you take the wheel off and verify that's your problem.

creep · 09-10-2009, 10:13 AM

Thanks guys! I'm supposed to get my air cleaner back from powder coating today so I will probably head out to my buddy's house and do some tinkering on the truck. How does the horn button come off? From the diagrams I've seen it looks like it is held in by friction to a rubber ring.

**Captainfab** · 09-10-2009, 09:54 PM

The horn button just pulls off. Then you will have to remove the steering wheel to get to the turn signal switch. You'll need a steering wheel puller for that.

forestb · 09-10-2009, 11:00 PM

I was able to pick one up at NAPA auto parts about a month ago. I would try them before paying shipping.

creep · 09-10-2009, 11:58 PM

Quote:

Originally Posted by Captainfab

I'm not sure if they are still available, but you used to be able to buy the plastic 'C' shaped part of the turn signal switch that the handle attaches to. This is what has the cancellation mechanism on it. They just get fatigued and brittle and break off.

That's exactly what happened!

creep · 09-15-2009, 09:46 PM

I tried replacing the turnsignal cam today but when I tried to remove the old one it had wires from the switch harnes attached to it with rivets and some sort of contacts on them. The replacement part doesn't have any way to attach the wires. I don't think the wires will even come off of the original part. I got the cam listed for a 63, should I try one from a different year.

gmcpkup · 09-15-2009, 09:59 PM

the one you got is for a chevy you need the GMC part with all the wires on it

creep · 09-15-2009, 10:07 PM

Oh, OK. I didn't know there was a difference. I'll check it out. Thanks.

creep · 09-16-2009, 04:26 PM

I can't find a part for the GMC, would an entire switch assembly for a 63 chevy work or is the wiring different?

**Captainfab** · 09-17-2009, 12:07 AM

You might check out the turn signal assembly for a '62 Chevy. It's been my experience that sometimes GMC used parts from a year or two older Chevy.

creep · 09-17-2009, 10:56 AM

The pictures I've seen of 62 switches look completely different.

09-09-2009, 07:37 PM	#1
creep Registered Loser Join Date: Jun 2009 Location: Elyria, OH Posts: 1,523	Turn signal ?s My 63 GMC has factory turn signals but they don't cancel when I turn. Are they suppose to? If not, is there some way to make them self-cancel? This truck is really showing me just how little I know about old vehicles. __________________ ((..)) ((0)) '63 GMC lwb, 383, th350, lays frame, genuine patina. The Build Thread - http://67-72chevytrucks.com/vboard/s...d.php?t=374267 '88 Astro cargo bagged, shaved, phantom grille. SOLD '50 Chevy 2 door sedan awaiting attention. 2014 Silverado Ext cab, 5.3, daily driver.

09-09-2009, 08:04 PM	#2
63 & 64 Bowties and a few others Join Date: Jun 2007 Location: Blue Ridge Mountains of VA Posts: 5,638	Re: Turn signal ?s Yes, they're supposed to cancel. Could be a couple things, but you may need a new switch behind the steering wheel. __________________ Bill US Army Vet -193rd Infantry BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi

09-09-2009, 11:02 PM	#3
likaroc13 Rollin' Old Skool Join Date: Jun 2007 Location: Hattiesburg, MS Posts: 5,371	Re: Turn signal ?s i've got the same issue with my '66...however, left turn will cancel & right turn won't

09-10-2009, 12:49 AM	#4
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Turn signal ?s I'm not sure if they are still available, but you used to be able to buy the plastic 'C' shaped part of the turn signal switch that the handle attaches to. This is what has the cancellation mechanism on it. They just get fatigued and brittle and break off. You might check with some of the aftermarket suppliers.....I haven't bought one in several years. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-10-2009, 05:42 AM	#5
63 & 64 Bowties and a few others Join Date: Jun 2007 Location: Blue Ridge Mountains of VA Posts: 5,638	Re: Turn signal ?s It's part number 36-0603 at LMC but I wouldn't buy one until you take the wheel off and verify that's your problem. __________________ Bill US Army Vet -193rd Infantry BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi

09-10-2009, 10:13 AM	#6
creep Registered Loser Join Date: Jun 2009 Location: Elyria, OH Posts: 1,523	Re: Turn signal ?s Thanks guys! I'm supposed to get my air cleaner back from powder coating today so I will probably head out to my buddy's house and do some tinkering on the truck. How does the horn button come off? From the diagrams I've seen it looks like it is held in by friction to a rubber ring. __________________ ((..)) ((0)) '63 GMC lwb, 383, th350, lays frame, genuine patina. The Build Thread - http://67-72chevytrucks.com/vboard/s...d.php?t=374267 '88 Astro cargo bagged, shaved, phantom grille. SOLD '50 Chevy 2 door sedan awaiting attention. 2014 Silverado Ext cab, 5.3, daily driver.

09-10-2009, 09:54 PM	#7
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Turn signal ?s The horn button just pulls off. Then you will have to remove the steering wheel to get to the turn signal switch. You'll need a steering wheel puller for that. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-10-2009, 11:00 PM	#8
forestb Registered User Join Date: Jan 2009 Location: Burbank, CA Posts: 3,590	Re: Turn signal ?s I was able to pick one up at NAPA auto parts about a month ago. I would try them before paying shipping.

09-15-2009, 09:46 PM	#10
creep Registered Loser Join Date: Jun 2009 Location: Elyria, OH Posts: 1,523	Re: Turn signal ?s I tried replacing the turnsignal cam today but when I tried to remove the old one it had wires from the switch harnes attached to it with rivets and some sort of contacts on them. The replacement part doesn't have any way to attach the wires. I don't think the wires will even come off of the original part. I got the cam listed for a 63, should I try one from a different year. __________________ ((..)) ((0)) '63 GMC lwb, 383, th350, lays frame, genuine patina. The Build Thread - http://67-72chevytrucks.com/vboard/s...d.php?t=374267 '88 Astro cargo bagged, shaved, phantom grille. SOLD '50 Chevy 2 door sedan awaiting attention. 2014 Silverado Ext cab, 5.3, daily driver.

09-15-2009, 09:59 PM	#11
gmcpkup Registered User Join Date: May 2004 Location: west olive mi. Posts: 24	Re: Turn signal ?s the one you got is for a chevy you need the GMC part with all the wires on it

09-15-2009, 10:07 PM	#12
creep Registered Loser Join Date: Jun 2009 Location: Elyria, OH Posts: 1,523	Re: Turn signal ?s Oh, OK. I didn't know there was a difference. I'll check it out. Thanks. __________________ ((..)) ((0)) '63 GMC lwb, 383, th350, lays frame, genuine patina. The Build Thread - http://67-72chevytrucks.com/vboard/s...d.php?t=374267 '88 Astro cargo bagged, shaved, phantom grille. SOLD '50 Chevy 2 door sedan awaiting attention. 2014 Silverado Ext cab, 5.3, daily driver.

09-16-2009, 04:26 PM	#13
creep Registered Loser Join Date: Jun 2009 Location: Elyria, OH Posts: 1,523	Re: Turn signal ?s I can't find a part for the GMC, would an entire switch assembly for a 63 chevy work or is the wiring different? __________________ ((..)) ((0)) '63 GMC lwb, 383, th350, lays frame, genuine patina. The Build Thread - http://67-72chevytrucks.com/vboard/s...d.php?t=374267 '88 Astro cargo bagged, shaved, phantom grille. SOLD '50 Chevy 2 door sedan awaiting attention. 2014 Silverado Ext cab, 5.3, daily driver.

09-17-2009, 12:07 AM	#14
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Turn signal ?s You might check out the turn signal assembly for a '62 Chevy. It's been my experience that sometimes GMC used parts from a year or two older Chevy. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-17-2009, 10:56 AM	#15
creep Registered Loser Join Date: Jun 2009 Location: Elyria, OH Posts: 1,523	Re: Turn signal ?s The pictures I've seen of 62 switches look completely different. __________________ ((..)) ((0)) '63 GMC lwb, 383, th350, lays frame, genuine patina. The Build Thread - http://67-72chevytrucks.com/vboard/s...d.php?t=374267 '88 Astro cargo bagged, shaved, phantom grille. SOLD '50 Chevy 2 door sedan awaiting attention. 2014 Silverado Ext cab, 5.3, daily driver.



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