1972 Marker and running lights - The 1947 - Present Chevrolet & GMC Truck Message Board Network

david7w5@gmail.com · 10-02-2024, 08:01 PM

I have a 1972 C30, when I turn on the first pull of the marker lights, the front side and bumper lights does not light up. It has a flat bed so no rear marker light. My headlights work, rear taillights, brake lights, and hazard lights work. When I turn on the blinker the front marker light flashes.

I owned a 69 in the past and the marker lights didn't flash.

What would cause this problem?

**dmjlambert** · 10-02-2024, 10:07 PM

Burned out fuse in the fuse panel, or bad parking light bulbs in the bumper are the top suspects.

**KSCHEVYUP** · 10-02-2024, 10:36 PM

Make sure you have a good ground.

**67 twins** · 10-03-2024, 12:10 AM

Just an FYI 72 marker lights are supposed to flash.

**'68OrangeSunshine** · 10-03-2024, 05:40 PM

Sounds like a 1967. [They had no Side Marker Reflectors.] The Turn Signal Lights worked L & R to signal turns. Hazards blinked all around. On first click, They came on as Parking Lights.
Second click, the Headlights came on but the front yellow lights went out. [Except for indicating turns]
A PO may have used a 1967 Model Year Headlight Switch.

In '68 the Side Marker Reflectors were installed, but had no lights. The Running lights stayed on with the headlights.
'69 I think, they were optionally lighted. IDKFS.
By '71 all the Marker lights were on, and the fronts alternated blinks with the front side lamps. Red rear markers don't blink.

10-02-2024, 08:01 PM	#1
david7w5@gmail.com Registered User Join Date: Aug 2019 Location: Cartersville, GA Posts: 5	1972 Marker and running lights I have a 1972 C30, when I turn on the first pull of the marker lights, the front side and bumper lights does not light up. It has a flat bed so no rear marker light. My headlights work, rear taillights, brake lights, and hazard lights work. When I turn on the blinker the front marker light flashes. I owned a 69 in the past and the marker lights didn't flash. What would cause this problem?

10-02-2024, 10:07 PM	#2
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,859	Re: 1972 Marker and running lights Burned out fuse in the fuse panel, or bad parking light bulbs in the bumper are the top suspects.

10-02-2024, 10:36 PM	#3
KSCHEVYUP Senior Member Join Date: Nov 2003 Location: NEAR MARYSVILLE,KANSAS 66508 Posts: 471	Re: 1972 Marker and running lights Make sure you have a good ground. __________________ 1972 C30 Cheyenne Super 1971 C10 (Parts truck)

10-03-2024, 12:10 AM	#4
67 twins Senior Member Join Date: Mar 2019 Location: Herculaneum MO (20 minutes south of St. Louis Posts: 648	Re: 1972 Marker and running lights Just an FYI 72 marker lights are supposed to flash. __________________ 67 C10 283 T5 swapped longbed fleetside = wife's daily driver 67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck 67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD 72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck Can you tell we are fans of longbed fleetsides & 67s Chris

10-03-2024, 05:40 PM	#5
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,500	Re: 1972 Marker and running lights Sounds like a 1967. [They had no Side Marker Reflectors.] The Turn Signal Lights worked L & R to signal turns. Hazards blinked all around. On first click, They came on as Parking Lights. Second click, the Headlights came on but the front yellow lights went out. [Except for indicating turns] A PO may have used a 1967 Model Year Headlight Switch. In '68 the Side Marker Reflectors were installed, but had no lights. The Running lights stayed on with the headlights. '69 I think, they were optionally lighted. IDKFS. By '71 all the Marker lights were on, and the fronts alternated blinks with the front side lamps. Red rear markers don't blink. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.