Gas Gauge Problems
Thread Starter
1st Gear
Joined: Mar 2017
Posts: 1
Likes: 0
From: Oklahoma
Gas Gauge Problems
I have a 76E that I'm having issues with the gas gauge. When the tank is full, the needle goes all the way to the 3 o'clock position. I normally fill up at about half a tank on the gauge and it takes about 9 gallons. Right now the car is sitting on about 3/4 a tank (looking in the tank) and the needle is about halfway through the F.
I've gone through the Wilcox troubleshooting guide. When I test the sending unit I get 64 Ohms with it sitting at about 3/4 full. When I remove the #1 wire from the sending unit, the gauge goes a hair past the 3 o'clock position. When I ground it out the gauge goes to just a hair about E.
Is this a bad gauge, or is something else going on?
I've gone through the Wilcox troubleshooting guide. When I test the sending unit I get 64 Ohms with it sitting at about 3/4 full. When I remove the #1 wire from the sending unit, the gauge goes a hair past the 3 o'clock position. When I ground it out the gauge goes to just a hair about E.
Is this a bad gauge, or is something else going on?
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
I got the same problem - one of the problems I am tacking this summer.
https://www.youtube.com/watch?v=fF6oqpJ-G1U
https://www.youtube.com/watch?v=fF6oqpJ-G1U
If you are 3 like the picture below shows then you are missing ohms input.
I'd also suggest you load and read this:
1968-1976 Corvette Fuel Gauge and Sending Unit Testing
Willcox
