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Corvette Fuel Injection & Electronic Engine Control: 1982 through 2001
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9/19/10 12:54pm - Original Message: 'Gas Gauge'
tinbender
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edgwood, MD - USA

Vette(s):
1975 convertible,with the hard top and power streering.it a 350 L48 with auto trans. the color is light blue.

Joined: 11/1/2007
Posts: 736

On my first real outing with my car yesterday  The gas gauge was bouncing around like a ping pong ball.Is this a sign of a bad gauge ,or is it the sending unit?The oil pressure gauge may do this once in a great moon.but the other gauges don't move.

                            Rick
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9/19/10 1:48pm - Reply: 'Gas Gauge'
bio11
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Oklahoma City, OK - USA

Vette(s):
1972 LS5 Convertible,Auto.Targa Blue with Black Interior.

Joined: 4/1/2007
Posts: 432
My Gas Gauge moves around a lot when I take off and when I stop. It settles down when I'm cruising down the road. It kinda bugs me. My gauge and sending unit were new about a year ago when I was redoing interior. I wonder if they are all like this? Mine is a  72 so probably same as yours.

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9/19/10 3:52pm - Reply: 'Gas Gauge'
yostusota
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York, PA - USA

Vette(s):
1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top

Joined: 5/18/2010
Posts: 1518
That's not really a big deal but can be annoying..I would bet the float on the sending unit is loose and not staying on the end of its bar..making any fuel movement extreme..I don't think these cars have a resister that makes the gauge move slower so when the float moves it is instant..I know my car has the sending unit on the bottom of the tank so I would have to drain the tank to even check it..so it may be a good time to replace the unit anyhow..it should come with a new float also..I would put this issue on the bottom of the list though..my gauge is not accurate..it shows more gas than what's in the tank..the only way I can adjust it is find someone with a really small arm to reach in there and bend it down or remove it..so that's probably not going to happen..not bad of a problem since it was your first trip this year..maybe make another up to Chips show in November!
Rich

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9/19/10 9:29pm - Reply: 'Gas Gauge'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19458
The older cars do have a resistor mounted between the two studs on the backs of the gauges, to try to keep the gauge needle from bouncing like that. They can sometimes loose connection for a while, the all of a sudden, they will work fine again.
With the advent of the electronic gauges in '75, I'm not sure how they did it, but there will still be some sort of resistor/buffer in the circuit somewhere, possibly still mounted to the back of the gauge....


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9/20/10 6:19pm - Reply: 'Gas Gauge'
tinbender
Former Member
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edgwood, MD - USA

Vette(s):
1975 convertible,with the hard top and power streering.it a 350 L48 with auto trans. the color is light blue.

Joined: 11/1/2007
Posts: 736

Thanks for the insight guys.I'm not going to worry about this for now,like Rich said it dose get annoying.I know when I stopped on the way home to get gas the gauge was bouncing between E and 1/2 a tank.I am just going to have to make sure I have plenty of gasLOL not the bean kind eihter.Rich I will let you guys know if I can make Corvettes for Chip,have to see how things gose.This job is going to the bottom of the list.

                             Rick

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9/20/10 6:23pm - Reply: 'Gas Gauge'
Jaws79 Lifetime Member
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Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4211
I had an Austin Healey 3000 Mark III that when the gas gauge broke we used a yardstick until the gauge was fixed!
 
Barry
 
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Jaws792010-09-20 16:24:19

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9/20/10 8:44pm - Reply: 'Gas Gauge'
tinbender
Former Member
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edgwood, MD - USA

Vette(s):
1975 convertible,with the hard top and power streering.it a 350 L48 with auto trans. the color is light blue.

Joined: 11/1/2007
Posts: 736
Dip stick....hmmmErmm naw that would be one more thing that I have to squezz into Ol Blu.Nice idea though.
                  Rick


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