Guest Posted September 12, 2002 Share Posted September 12, 2002 Does anyone know what would make the fuel guage just stop working? One tank it worked the next it stop at 1/2 and I ran out of gas. lol. I filled it back up and its still at a half tank. So where do I start? Thanks Chuck ------------------ pale340.tripod.com Link to comment Share on other sites More sharing options...
Guest Posted September 12, 2002 Share Posted September 12, 2002 Same thing happened to my 67'. It was the ground wire at the gas tank (green). Mine quit working when it was on full and just stayed there. ------------------ 1971 Monte Carlo, 350, th350, black, black top, light sandal wood interior 1971 Monte Carlo, 350, th350, blue, blue interior ACE VENTURA 1992 Camaro Z28 custom 25th anniversary, 355 TPI, Th700r4, 2.73 posi, arctic white, gray stripes with black border, black/gray interior 1987 Olds Cutlass Supreme, 350 Rocket, Th350, gray/gray 1967 Pontiac Catalina, 400, Th400, cameo ivory white, red interior 1979 Olds Toronado, 350 Rocket, FWD, brown, gold interior 2 other pontiacs 67 gp and 68 cat and a 83 buick Riviera New addition: 1994 Chevy Beretta Z26 Link to comment Share on other sites More sharing options...
Canuck Posted September 12, 2002 Share Posted September 12, 2002 There is something wrong with the float in your tank. My 1980 Malibu did the same thing. When i first got it, the car would run out at 1/2 tank. It worked for a short period and then went back to the way it was. One day it worked again and it has been working ever since. I don't know what fixed it? Someone told me that the float was upside down causing the gas guage to read wrong and that it must have flipped over the right way when it fixed itself. ------------------ Aaron Dodsworth Langley, BC Canada 1970 Monte Carlo Aaron's Monte Carlo Web Site Link to comment Share on other sites More sharing options...
Guest Posted September 12, 2002 Share Posted September 12, 2002 I agree with Rod, check your ground at the tank. ------------------ Trying is the first step tward failure...Homer Simpson 1972 Chevrolet Monte Carlo My Monte Carlo Page Pete@firstgenmc.com Link to comment Share on other sites More sharing options...
montefrazer Posted September 12, 2002 Share Posted September 12, 2002 Originally posted by Pete_72_Monte: I agree with Rod, check your ground at the tank. Since it's a ground, run a wire from a clean spot on the tank to a clean spot on the frame and bypass the factory ground. If it works, you have found the problem. If not, post again for more ideas. ------------------ Steve Link to comment Share on other sites More sharing options...
Bob Hansen Posted September 12, 2002 Share Posted September 12, 2002 The ground wire runs from the sending unit to the body. ------------------ 1944 GPW Army Jeep 1964 Buick Riviera- For Sale 1970 Monte Carlo Link to comment Share on other sites More sharing options...
wallaby Posted September 12, 2002 Share Posted September 12, 2002 The fuel sender is a variable ground. If the ground is perfect (no resistance) the gauge will read full scale. If the circuit is open,(very high or infinite resistance) the gauge will read full scale the other way. So either your ground is working great, or not at all; but either way, the gauge should be at E or F...not in the middle. I would suspect the sending unit first. It could be the gauge, or the power supply to it, but not a ground. Link to comment Share on other sites More sharing options...
McCall72 Posted September 12, 2002 Share Posted September 12, 2002 Gremlins? I think if you shine a bright light on them they turn to stone or something... As for the sending unit, mine has the same trouble and I've been tried grounding the wire in several different spots with no luck. I even changed out the fuel tank (badly rusted) and sending unit and the guage still shows 1/4 full at the most. I think I'm going to try a new circuit board next. Link to comment Share on other sites More sharing options...
Guest Posted September 13, 2002 Share Posted September 13, 2002 Let us know if the new circuit board works to remedy the problem Quote: <font face="Verdana, Arial" size="2">Originally posted by McCall72: Gremlins? I think if you shine a bright light on them they turn to stone or something... As for the sending unit, mine has the same trouble and I've been tried grounding the wire in several different spots with no luck. I even changed out the fuel tank (badly rusted) and sending unit and the guage still shows 1/4 full at the most. I think I'm going to try a new circuit board next.</font> ------------------ My 1970 Monte Restore Pages LLOYD@FIRSTGENERATIONMONTECARLO.COM Link to comment Share on other sites More sharing options...
Guest Posted September 14, 2002 Share Posted September 14, 2002 --- GREMLIN!!!!!!!!!! http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1858078554 Funny little things aren't they? Link to comment Share on other sites More sharing options...
wallaby Posted September 14, 2002 Share Posted September 14, 2002 Yea, but how do you get rid of 'em? Link to comment Share on other sites More sharing options...
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