Fuel Gauge Check

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May 20, 2009 | 08:18 AM

76yellow

Thread Starter

Burning Brakes

Joined: Jul 2004

Posts: 783

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From: Mankato Mn

Fuel Gauge Check

Is there a way to check a fuel gauge before I install it in the car ?

May 20, 2009 | 08:40 AM

...Roger...

Race Director

Joined: May 2006

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From: Dayton, Ohio

Yes it needs a hot lead a ground and a known resistance to ground on the 3rd lead.
http://forums.corvetteforum.com/c3-t...uld-share.html

May 20, 2009 | 08:49 AM

...Roger...

Race Director

Joined: May 2006

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From: Dayton, Ohio

Guess I should have ask if the gauge is mounted in the cluster or not. Is it a new gauge that does not use a resistor ?
6 oclock stud -12volts
9 ockock stud - ground
12 oclock stud varied resistance to ground
90 ohm resistor across 6 and 12 oclock studs

Last edited by ...Roger...; May 20, 2009 at 08:52 AM.

May 20, 2009 | 09:42 AM

76yellow

Thread Starter

Burning Brakes

Joined: Jul 2004

Posts: 783

Likes: 38

From: Mankato Mn

I guess I'll start at the beginning. I've been restoring a 68 convertable for 2 years now. I'm finally to the point of reassembling the dash. I had the gauges in & everything worked except the fuel gauge. I have a new tank & sender installed. The gauges are'nt the original green gauges, they are from a later year. 73 possibly. The fuel gauge does have a resistor across the 6 & 12 oclock terminals. Right now it is sitting on my work bench. I can move the needle with my finger. When it was installed it was way past full but I don't rember if thats where it was before I installed it.

May 20, 2009 | 10:49 AM

0Willcox Corvette

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From: Jeffersonville Indiana 812-288-7103

St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15

You are missing input signal if the gauge is pegged full. Go to the wire that the ohms signal is coming in on and see if you have a reading on this wire from the gas tank. If you want to see how a dash gauge responds to what conditions go to this link.

http://www.youtube.com/watch?v=OsyhJ...eature=related

Willcox Inc.

Last edited by Willcox Corvette; May 21, 2009 at 12:12 AM.

May 20, 2009 | 07:13 PM

76yellow

Thread Starter

Burning Brakes

Joined: Jul 2004

Posts: 783

Likes: 38

From: Mankato Mn

Thanks for the help. I thought about today & checked the rear harness for the tail lights & fuel sender. Since none of the tail light housings are installed yet none of the grounds were hooked to the frame. I hooked up a ground & the gauge reads empty which is probably correct as there is very little gas in it. So once again, thanks & I appreciate your help & consideration.
And by the way Wilcox Corvette, I restore C3s & buy many parts from other companies because I was'nt aware of you guys. Being such a great contributor to this forum you will get my business from now on !

May 21, 2009 | 12:00 AM

0Willcox Corvette

Former Vendor

Joined: Aug 2006

Posts: 76,656

Likes: 1,851

From: Jeffersonville Indiana 812-288-7103

St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15

76,

Thank you and I'm glad to be a help!

I'm glad you found the problem and know that if you ever have any problem you can always contact me direct at Willcoxcustomerservice@willcoxcorvette.c om.

How did you like the vid? I'm new to doing these and working on learning the edit side right now.

Willcox

May 21, 2009 | 01:21 AM

76yellow

Thread Starter

Burning Brakes

Joined: Jul 2004

Posts: 783

Likes: 38

From: Mankato Mn

The vid is a great idea & will be very helpful if I have another gauge issue in the future. I think I found my problem before I watched it. Keep up your input & knowledge here. People like you & Lars 7 some others are priceless to this forum & other vette lovers like myself ! Thanks again