My Fuel Gauge Don't Work - The 1947 - Present Chevrolet & GMC Truck Message Board Network

conman · 04-26-2005, 05:49 AM

I did a body swap putting a 70 model body on my 72 model chasis. I put the fuel tank from the 72 and also the gauge cluster. Before the swap the gauge worked perfect. Now, the gauge reads almost a 1/4 turn low. I know the wire is not broken. The only difference is the wiring harness plug-in on the 70 body had a total of 11 contacts,( 6 on top, 5 on bottom) the 72 has a total of 12 ( 6 on top, 6 on bottom) I cant figure this one out.

Longhorn Man · 04-26-2005, 06:13 AM

The harness is still a 1970 harness, right?
Was it a dummy light cab or acc guages cab?

conman · 04-26-2005, 06:33 PM

It was a dummy cab originally.

Longhorn Man · 04-26-2005, 08:03 PM

if it is still the dummy light harness, you probably already fried the fuel guage.
They were not wired the same.

When i did this, the needle on the fuel guage spun around a few times and gave up the ghost in a puff of smoke.
My buddy found it funny...I was less than amused.

Gary Lee · 04-26-2005, 09:10 PM

A real long dowel or stick works well as a kinda dip stick... You just have to member to check it though...

I was just funning, but unfortunately as a GA resident, I have witnessed it... but it was dodge, what can i say...

Longhorn Man · 04-26-2005, 10:59 PM

use a clean broom stick, less chance of somethign falling off the stick, and it is long enough to reach the bottom of the tank.

Like I said...been there....done that.

04-26-2005, 05:49 AM	#1
conman Registered User Join Date: Jan 2002 Location: Fayette, Alabama Posts: 155	My Fuel Gauge Don't Work I did a body swap putting a 70 model body on my 72 model chasis. I put the fuel tank from the 72 and also the gauge cluster. Before the swap the gauge worked perfect. Now, the gauge reads almost a 1/4 turn low. I know the wire is not broken. The only difference is the wiring harness plug-in on the 70 body had a total of 11 contacts,( 6 on top, 5 on bottom) the 72 has a total of 12 ( 6 on top, 6 on bottom) I cant figure this one out. __________________ Fayette Alabama

04-26-2005, 06:33 PM	#3
conman Registered User Join Date: Jan 2002 Location: Fayette, Alabama Posts: 155	It was a dummy cab originally. __________________ Fayette Alabama

04-26-2005, 06:13 AM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	The harness is still a 1970 harness, right? Was it a dummy light cab or acc guages cab?

04-26-2005, 08:03 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	if it is still the dummy light harness, you probably already fried the fuel guage. They were not wired the same. When i did this, the needle on the fuel guage spun around a few times and gave up the ghost in a puff of smoke. My buddy found it funny...I was less than amused.

04-26-2005, 09:10 PM	#5
Gary Lee fixer of 72 GMC LWB Join Date: Feb 2005 Location: Newnan GA Posts: 111	A real long dowel or stick works well as a kinda dip stick... You just have to member to check it though... I was just funning, but unfortunately as a GA resident, I have witnessed it... but it was dodge, what can i say...

04-26-2005, 10:59 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	use a clean broom stick, less chance of somethign falling off the stick, and it is long enough to reach the bottom of the tank. Like I said...been there....done that.



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