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Fuel gauge problem #1499744 09/10/13 05:18 PM 09/10/13 05:18 PM
Joined: Sep 2009 Posts: 143 Canada S smmf OP member
smmf OP member S Joined: Sep 2009 Posts: 143 Canada	I have a 67 Charger, the fuel gauge doesn't register fuel level. I checked the gauge by grounding the wire at the sender, and it rises to full I checked voltage at 5V I ordered a new sender and still doesn't register. Any thoughts on the problem would be appreciated

Re: Fuel gauge problem [Re: smmf] #1499745 09/10/13 05:49 PM 09/10/13 05:49 PM
Joined: Jan 2003 Posts: 32,970 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,970 Grand Prairie,Texas	Did you make sure the sender is grounded? There should be a metal strap that goes from the outlet on the sender to the metal fuel line on the car. It jumps the short rubber hose that joins the lines.See the clip 14-72-5 https://board.moparts.org/ubbthreads/upload2/4648384-untitled4.jpg

Re: Fuel gauge problem [Re: stumpy] #1499746 09/10/13 06:10 PM 09/10/13 06:10 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	If the ground Stumpy mentions isn't the issue, then you have an open wire between the sender and the gauge. BTW, two hose clamps and a length of wire will substitute for the strap linked. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: Fuel gauge problem [Re: Supercuda] #1499747 09/10/13 06:20 PM 09/10/13 06:20 PM
Joined: Jan 2003 Posts: 32,970 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,970 Grand Prairie,Texas	He said when he grounded the sender wire the gauge worked so it's at the sender end.

Re: Fuel gauge problem [Re: stumpy] #1499748 09/10/13 06:24 PM 09/10/13 06:24 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	You got me They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: Fuel gauge problem [Re: stumpy] #1499749 09/10/13 09:46 PM 09/10/13 09:46 PM
Joined: Sep 2009 Posts: 143 Canada S smmf OP member
smmf OP member S Joined: Sep 2009 Posts: 143 Canada	I actually had the sender out of the car to make sure I had it grounded. Both were aftermarket senders. Is there a ohm reading they should be?

Re: Fuel gauge problem [Re: smmf] #1499750 09/10/13 10:29 PM 09/10/13 10:29 PM
Joined: May 2005 Posts: 4,748 Florida BDW master
BDW master Joined: May 2005 Posts: 4,748 Florida

Re: Fuel gauge problem [Re: smmf] #1499751 09/10/13 10:39 PM 09/10/13 10:39 PM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Quote: I actually had the sender out of the car to make sure I had it grounded. Both were aftermarket senders. Is there a ohm reading they should be? Yes 73-10 ohms I am truckless..

Re: Fuel gauge problem [Re: 340SHORTY] #1499752 09/10/13 11:08 PM 09/10/13 11:08 PM
Joined: Sep 2009 Posts: 143 Canada S smmf OP member
smmf OP member S Joined: Sep 2009 Posts: 143 Canada	thanks I checked them out and they seem good. I am at a loss on this. Everything checks out by themselves but as a unit I get no fuel level.

Re: Fuel gauge problem [Re: smmf] #1499753 09/10/13 11:19 PM 09/10/13 11:19 PM
Joined: May 2005 Posts: 4,748 Florida BDW master
BDW master Joined: May 2005 Posts: 4,748 Florida	Make sure the float doesn't have a hole in it.

Re: Fuel gauge problem [Re: BDW] #1499754 09/10/13 11:37 PM 09/10/13 11:37 PM
Joined: Sep 2009 Posts: 143 Canada S smmf OP member
smmf OP member S Joined: Sep 2009 Posts: 143 Canada	sending unit is out of the ca. I am manually raising the float. at the same time grounding it. I actually use a test light to make sure the unit is grounded.

Re: Fuel gauge problem [Re: smmf] #1499755 09/11/13 09:15 AM 09/11/13 09:15 AM
Joined: Jan 2003 Posts: 21,080 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,080 Niles , Ohio	Make sure the part inside the connector is contacting good.Ive seen them spread and or get corroded and not work.I always crimp them a but when I install the wire to the sender.I also run a ground from the battery to the sender to test them.Ive also seen where someone has tried to ground the sender on the hose instead of the nipple.I like to run a wire to the sender and ground it to the body.Its better than the factory clip.That and if the fuel line to the front isnt grounded the unit wont be grounded.Rocky Chrysler Firepower

Re: Fuel gauge problem [Re: smmf] #1499756 09/11/13 09:18 AM 09/11/13 09:18 AM
Joined: Feb 2003 Posts: 8,690 A Andrewh master
Andrewh master A Joined: Feb 2003 Posts: 8,690	so, my end at the tank is a L shaped boot. since it is a boot, there is a bit of rubber at the end before you hit metal. even then, it is at only the sides. is it possible, you don't have contact because of the rubber boot? the stud coming out is too short? or too thin to make contact with the sides? try putting a bit of aluminum foil on the end of the stud coming. enough that you feel pressure side to side putting it on. or pull the boot tight to one side.

Re: Fuel gauge problem [Re: Andrewh] #1499757 09/11/13 12:30 PM 09/11/13 12:30 PM
Joined: Jan 2003 Posts: 32,970 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,970 Grand Prairie,Texas	You can just squeeze the boot lightly with a pair of pliers to tighten the connector.

Re: Fuel gauge problem [Re: stumpy] #1499758 09/11/13 10:27 PM 09/11/13 10:27 PM
Joined: Sep 2009 Posts: 143 Canada S smmf OP member
smmf OP member S Joined: Sep 2009 Posts: 143 Canada	Thanks everyone for your help. Have tried everything suggested and more. Still the gauge and sender will not work together. I even borrowed an original sender still nothing. But as stated earlier each piece functions individually but not together. It has to be something stupidly simple

Re: Fuel gauge problem [Re: smmf] #1499759 09/11/13 11:04 PM 09/11/13 11:04 PM
Joined: Jan 2003 Posts: 15,469 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,469 Omaha Ne	Quote: It has to be something stupidly simple Grounds as in electrical. Some sending units/ rheostats want to be "wet" IE: think fuel/vapors. BUT be careful as a errant spark can send on to the local emergency room. If the gauge and wiring are good which they appear to be from your posts, the problem is with the sending unit, grounds to it, or the connection to the unit. PERIOD!!! ground connections will send you to a mental institution, Nuff said!!! I suspect you think you have a good ground but the sending unit doesn't agree be careful Last edited by TJP; 09/11/13 11:12 PM. www.tandmautomotive-omaha.com

Re: Fuel gauge problem [Re: smmf] #1499760 09/11/13 11:16 PM 09/11/13 11:16 PM
Joined: Jan 2003 Posts: 15,469 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,469 Omaha Ne	Quote: sending unit is out of the ca. I am manually raising the float. at the same time grounding it. I actually use a test light to make sure the unit is grounded. OK silly question, Out of the car, can you make the gauge work with the sending unit by grounding it, hooking it up and manually moving the float arm?? www.tandmautomotive-omaha.com

Re: Fuel gauge problem [Re: TJP] #1499761 09/11/13 11:21 PM 09/11/13 11:21 PM
Joined: Sep 2009 Posts: 143 Canada S smmf OP member
smmf OP member S Joined: Sep 2009 Posts: 143 Canada	Quote: Quote: sending unit is out of the ca. I am manually raising the float. at the same time grounding it. I actually use a test light to make sure the unit is grounded. OK silly question, Out of the car, can you make the gauge work with the sending unit by grounding it, hooking it up and manually moving the float arm?? No I can not get the gauge with sender out of the car.

Re: Fuel gauge problem [Re: TJP] #1499762 09/11/13 11:28 PM 09/11/13 11:28 PM
Joined: Sep 2009 Posts: 143 Canada S smmf OP member
smmf OP member S Joined: Sep 2009 Posts: 143 Canada	Quote: Quote: It has to be something stupidly simple Grounds as in electrical. Some sending units/ rheostats want to be "wet" IE: think fuel/vapors. BUT be careful as a errant spark can send on to the local emergency room. If the gauge and wiring are good which they appear to be from your posts, the problem is with the sending unit, grounds to it, or the connection to the unit. PERIOD!!! ground connections will send you to a mental institution, Nuff said!!! I suspect you think you have a good ground but the sending unit doesn't agree be careful Thanks for your input. I feel the same as a bad ground. So I attached a ground wire from the sender to the frame plus I used a jumper cables from the battery to the sender. I did not know about being wet. I did get the gauge (with sender) to move just above empty and that was as far as it went. I am leaning towards the ground because the rheostat was a little warm, just can't think of a better way to ground it short of soldering it. Plus I double checked the gauge by grounding it and it did go to full

Re: Fuel gauge problem [Re: smmf] #1499763 09/11/13 11:49 PM 09/11/13 11:49 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	You might submerge it in a large container of water & with some jumper wires run 12V to the input nipple & ground the case & see how it acts submerged. Hold it at the same angle it would be in the tank live every 24 hour block of time like it's your last day on earth

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