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Interiors, Dash, Lights and Electrical Everything Inside

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  #1  
Old April 28th, 2013, 11:40 AM
Dan Robertson Dan Robertson is offline
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Default Lights

Does anyone know if the park/tail lights on my 1963 GMC 4000 series truck are fused? They worked last fall but don't work now. The fuse panel is labeled but I didn't see a fuse for the lights. The head lights still work on both high and low beam but the park lights or tail lights won't come on anymore.
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  #2  
Old April 29th, 2013, 02:47 PM
BillT BillT is offline
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Default Re: Lights

I am far from an electrical expert, but yes they will have a fuse. Check each fuse carefully in the fuse box. Just wondering if your Dash Lights work? Many times that will be a tell-tale sign that your tail lights are also not working. If necessary, check each terminal for power in the fuse box with an electrical tester.

Bill
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Old April 30th, 2013, 11:09 PM
Dan Robertson Dan Robertson is offline
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Default Re: Lights

I'm not sure if the dash lights ever worked or not, they don't now. I will check the fuses with a test light. It just seemed odd that I had park lights and tail lights and all of a sudden they both don't work anymore. I have it registered as an antique but I haven't driven it on the road yet. I only use it to plow snow with. It has a 351C V-6 and a 4 yard dump body. It's a real beast. I have about a ton or so of weight in the back and with tire chains on, it doesn't even know that it's pushing a 9.5 foot wide snowplow.
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Old May 1st, 2013, 03:17 AM
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GVDobler GVDobler is offline
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Default Re: Lights

My schematic for a '66 shows that they are powered via the light switch. The light switch is fused at the fuse box/panel. Don't see any other fuses for park or taillights in the schematic.

Do the headlights work?

Don't know if is the same for your year.
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Last edited by GVDobler; May 1st, 2013 at 03:36 AM.
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  #5  
Old May 1st, 2013, 05:06 AM
klausz klausz is offline
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Default Re: Lights

Hi
I had the same issue once,head lights worked fine but no tail at all.I found a plug above the gas pedal on the firewall that was undone.Not sure if the big trucks are the same as my 65 1/2 ton
Klaus
1965 GMC 305
Wyoming
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