rookie has electrical woes on 69 C20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69DISASTER · 10-12-2008, 02:25 AM

I have no lo-beams only hi-beams. Tried a new dimmer switch but problem still persists. Any other options available ? Also having gas gauge troubles. The needle is pointing way over to the 4 oclock position, tried another sending unit externally (I grounded the unit to the tank) and the needle moved upwardly to about 3 oclock but that was it. HELP!!!!!

***Liz*** · 10-12-2008, 04:59 PM

moved to 67-72 for you.. prolly shoulda moved it to electrical, but this works and you will get an answer

Camper Power · 10-12-2008, 08:00 PM

you probably have a short somewhere in the electrical system, if you have HID or any other light thats brighter than halogen bulbs then there is a high chance that the wires have melted from the exess heat. i heard a few stories of this happening when first the low beams go, then you turn on the high beams and then they quit. not sure about the gas guage though

Longhorn Man · 10-12-2008, 08:46 PM

the fuel guage sounds like an open circuit. Follow the brown wire off the sending unit, it's probably corroded/cracked under the sill plate.
Have you verified that your headlamps are actually getting power to them? As in... are the bulbs burned out by chance?

69DISASTER · 10-14-2008, 05:20 PM

Thanx to all, it was a broken wire under the door sill (gas gauge problem) and believe it or not, it was BOTH!! lowbeams burnt out (whwat r the chances of that. You guys are awsome , thank you again for your help and advice!!

cdowns · 10-14-2008, 06:37 PM

clean your ground wires for the headlights to make sure they continue to work properly

10-12-2008, 02:25 AM	#1
69DISASTER Registered User Join Date: Oct 2008 Location: CALGARY, ALBERTA Posts: 62	rookie has electrical woes on 69 C20 I have no lo-beams only hi-beams. Tried a new dimmer switch but problem still persists. Any other options available ? Also having gas gauge troubles. The needle is pointing way over to the 4 oclock position, tried another sending unit externally (I grounded the unit to the tank) and the needle moved upwardly to about 3 oclock but that was it. HELP!!!!! Last edited by 69DISASTER; 10-12-2008 at 10:03 AM.

10-12-2008, 04:59 PM	#2
*Liz* Catchy title goes here.. Join Date: Mar 2002 Location: Rockwell, NC Posts: 39,767	Re: rookie has electrical woes on 69 C20 moved to 67-72 for you.. prolly shoulda moved it to electrical, but this works and you will get an answer

10-12-2008, 08:00 PM	#3
Camper Power Registered User Join Date: Feb 2008 Location: Grande Prairie Alberta Posts: 261	Re: rookie has electrical woes on 69 C20 you probably have a short somewhere in the electrical system, if you have HID or any other light thats brighter than halogen bulbs then there is a high chance that the wires have melted from the exess heat. i heard a few stories of this happening when first the low beams go, then you turn on the high beams and then they quit. not sure about the gas guage though __________________ eh 1970 Chevy C20 daily driver 1975 GMC Jimmy 4x4 project 1966 GMC C10 Dad's project

10-12-2008, 08:46 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: rookie has electrical woes on 69 C20 the fuel guage sounds like an open circuit. Follow the brown wire off the sending unit, it's probably corroded/cracked under the sill plate. Have you verified that your headlamps are actually getting power to them? As in... are the bulbs burned out by chance? Last edited by Longhorn Man; 10-14-2008 at 07:16 PM.

10-14-2008, 05:20 PM	#5
69DISASTER Registered User Join Date: Oct 2008 Location: CALGARY, ALBERTA Posts: 62	Re: rookie has electrical woes on 69 C20 Thanx to all, it was a broken wire under the door sill (gas gauge problem) and believe it or not, it was BOTH!! lowbeams burnt out (whwat r the chances of that. You guys are awsome , thank you again for your help and advice!!

10-14-2008, 06:37 PM	#6
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: rookie has electrical woes on 69 C20 clean your ground wires for the headlights to make sure they continue to work properly __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY



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