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Topic: Low Fuel Light

in Forum: C3 Fuel, Emission Control, and Exhaust Systems

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Low Fuel Light (1/6)
6/27/10 12:17pm

rraider1
Former Member
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1165

Does anyone know at what point the 77 low fuel light should come on, this is one of the last nonessentials to fix just so that everything works. I found my light ckt bord and installed it removed some gas untill I had approx 4 gallons and the light did not come on.

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Low Fuel Light (2/6)
6/27/10 9:06pm

Adams' Apple

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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: 20129

Does the light come on if you ground the wire at the sending unit?

I don't know for sure how low it should be, but most of the GM car's I've had with a light would come on at about 2 gal, if that helps.

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Joel Adams
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Low Fuel Light (3/6)
6/27/10 10:52pm

Iron82

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Vette(s):
1982 Collector Edition #3413

Joined: 7/24/2003
Posts: 2150

I drove my '82CE to NY in 2006 for a test on it. Had about 2 gals of fuel left when the light came on. Hope this helps.

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Low Fuel Light (4/6)
6/27/10 11:42pm

rraider1
Former Member
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1165

Grnd the Sender light did not come on I will pull the ckt card and test it.

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Low Fuel Light (5/6)
6/28/10 4:14pm

rraider1
Former Member
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1165

Replaced the 2 transistors on the ckt bd, now the light will come on when the sender is grounded (approx 10 seconds after grounding). its one of those fixes I propably will never see work

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Low Fuel Light (6/6)
6/28/10 10:55pm

Adams' Apple

It's a start!! The light should have a "delay" feature that keeps it from flickering when it gets to the point of illuminating...sort of a buffer. So, grounding the sender wire, and the light coming on a few seconds later sounds like it should work fine. Just drive it till the light comes on.....be sure to have a gas can wid ya, just in case!

Naw...it'll work. You prolly won't ever let the tank get low enough, tho. I never let mine get down that far either...I'm too skeered it'll run out on me. At least on mine I can look down in the tank and see how much fuel is in there!

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