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Topic: Low Fuel Light

in Forum: C3 HVAC, Fuel, Emissions, and Exhaust


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Low Fuel Light

Posted: 6/27/10 9:17am Message 1 of 6
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rraider1
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Woodland, WA - USA
Joined: 10/14/2003
Posts: 1171
Vette(s): 1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

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

Posted: 6/27/10 6:06pm Message 2 of 6
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20225
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
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.



Joel Adams
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Low Fuel Light

Posted: 6/27/10 7:52pm Message 3 of 6
Iron82
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Vette(s): 1982 Collector Edition #3413
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.


Low Fuel Light

Posted: 6/27/10 8:42pm Message 4 of 6
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rraider1
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Woodland, WA - USA
Joined: 10/14/2003
Posts: 1171
Vette(s): 1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion
Grnd the Sender light did not come on I will pull the ckt card and test it.


Low Fuel Light

Posted: 6/28/10 1:14pm Message 5 of 6
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rraider1
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Woodland, WA - USA
Joined: 10/14/2003
Posts: 1171
Vette(s): 1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

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




Low Fuel Light

Posted: 6/28/10 7:55pm Message 6 of 6
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20225
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
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! 



Joel Adams
C3VR Lifetime Member #56    
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(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

in Forum: C3 HVAC, Fuel, Emissions, and Exhaust


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