Head lights killing gauge cluster - The 1947 - Present Chevrolet & GMC Truck Message Board Network

carlisle72 · 03-25-2013, 05:26 PM

Hello Everyone,

Newbie here with a question. Picked me up a 72 C10, love my truck. Got a problem and was lucking for some suggestions. Gauge cluster works fine until you turn on the headlights, as soon as you do the gauges quit working. Any suggestions on what to check for...

Many thanks

JimKshortstep4x4 · 03-25-2013, 07:28 PM

Welcome to the 67-72 Chevy Truck Board from West Michigan!

My suggestion is to make sure the metal part of the dash is grounded. There should be a small black wire clipped to the dash metal which grounds the cluster. Otherwise you can run a separate ground wire to one of the gauge screws.

Jim

**Ol Blue K20** · 03-25-2013, 07:41 PM

Quote:

Originally Posted by JimKshortstep4x4

Welcome to the 67-72 Chevy Truck Board from West Michigan!

My suggestion is to make sure the metal part of the dash is grounded. There should be a small black wire clipped to the dash metal which grounds the cluster. Otherwise you can run a separate ground wire to one of the gauge screws.

Jim

It's a ground issue

carlisle72 · 03-25-2013, 09:02 PM

Thanks for the replies, i'll check into that tomorrow. awesome forum.

carlisle72 · 03-27-2013, 11:34 PM

Thanks guys, ran a ground wire and everything is working great.

03-25-2013, 05:26 PM	#1
carlisle72 Registered User Join Date: Mar 2013 Location: Green Sea, SC Posts: 10	Head lights killing gauge cluster Hello Everyone, Newbie here with a question. Picked me up a 72 C10, love my truck. Got a problem and was lucking for some suggestions. Gauge cluster works fine until you turn on the headlights, as soon as you do the gauges quit working. Any suggestions on what to check for... Many thanks

03-25-2013, 07:28 PM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Head lights killing gauge cluster Welcome to the 67-72 Chevy Truck Board from West Michigan! My suggestion is to make sure the metal part of the dash is grounded. There should be a small black wire clipped to the dash metal which grounds the cluster. Otherwise you can run a separate ground wire to one of the gauge screws. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

03-25-2013, 09:02 PM	#4
carlisle72 Registered User Join Date: Mar 2013 Location: Green Sea, SC Posts: 10	Re: Head lights killing gauge cluster Thanks for the replies, i'll check into that tomorrow. awesome forum.

03-27-2013, 11:34 PM	#5
carlisle72 Registered User Join Date: Mar 2013 Location: Green Sea, SC Posts: 10	Re: Head lights killing gauge cluster Thanks guys, ran a ground wire and everything is working great.



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