72 Roadrunner: Diagnosing and Improving your Mopar Fuel Gauge!

[@garryhatchett775]

I haven’t found an aftermarket sender yet that was accurate. Merry Christmas Joe.

[@JustMoparJoe]

Thanks Garry! Try the meter match!

[@maximuswedgie5149]

My gas gauge has not worked for six years in my 65 Coronet. Last year I found a new gas gauge on eBay, purchased it for $100. Took it a long time to get to me. I installed the gas gauge in my dashboard. Hooked my battery back up and turn my key on. The gas gauge kept going higher and higher and higher past full. Then POOF! Smoke came out from my dashboard, just a tiny bit. Then the gas gauge went all the way back down to E. So I toasted my new gas gauge. This was a pretty good indicator that I needed a new sending unit I just had no idea that that could happen. I’ve been looking for a new gas gauge since. But now I know not to install it till I get a sending unit. The way you tested it was awesome I’ve been waiting for a video like that thanks again Joe for the great content.

[@JustMoparJoe]

Don’t let the smoke out! Merry Christmas brother

[@christopherbice862]

You may need a new voltage limiter. If it shorted it will send 12v instead of 5-6 like it is supposed to.

[@maximuswedgie5149]

@@christopherbice862 thanks! I will check that👍

[@christopherbice862]

Dead dodge garage did a great video (I already posted that but i don't see it lol)✌@@maximuswedgie5149

[@MoparMan-ff8fb]

few years back when my sender in my 65 dart quite working I bought a 35.00 aftermarket replacement . it worked for about 3 weeks so bought a 125.00 aftermarket replacement unit and when the float was fully engaged it read half a tank 🙄. Got tired of the cheap china crap and ripped out the fuel tank and the sender and installed an RCI 16 gal fuel cell with GM unit 0-90 ohms and bought a cheap Equus 0-90 ohms guage from O'reallys no issues ever since . did buy a replacement sender for my D150 from LMC that said it fit my truck . got it and was about 3 ft. long compaired to the obe that came out of my gas tank? I bent the pick up tube and had to bend the float arm and make adjustments while watching the fuel guage and its been all good now . Merry Christmas to you and your family Joe 🙏🎅⛄

[@JustMoparJoe]

Thanks Jeremiah!

[@DustorBust]

Good video buddy! Happy holidays. 🎅

[@JustMoparJoe]

Thanks Marcos! Ready to see that Duster burn some rubber in 22’

[@jerryjordan1448]

Thanks Joe you're videos are really down to earth there genuine....

[@JustMoparJoe]

Thank you Jerry! Merry Christmas and happy new year to you and yours!

[@HoosierGarage]

Joe, you're a very grounded guy, and a grounded guy is tops in showing us how proper grounds are grounded. And I'm amazed at how rough some people would hack those B body clusters for aftermarket radios..lol I might need that MeterMatch for the van, i have a new tank and sender, and it shows mostly correct but likes to wonder around at times. I guess the slosh.

[@JustMoparJoe]

That meter match is supposed to beat the slosh and match the meter to the meter and the sender! Definitely a cool idea!

[@dougnations1270]

Good troubleshooting Joe!

[@JustMoparJoe]

This car needs a real shooting! Thanks brother

[@terrymeyer9895]

Great diagnostic tip! You nailed it sir! Merry Christmas Joe!!!

[@JustMoparJoe]

Thanks Terry! See you Thursday!

[@moparnut6286]

Wow that was a long ground wire you know you can measure resistance of both the ground and the wire that leads to the fuel gauge you also have to take into account the voltage regulator on the back of the gauge cluster they do make solid state version that gives you dead on voltage when you turn on the key. Merry Christmas Joe and to the family 👪 and have a happy New Year!

[@JustMoparJoe]

Merry Christmas!

[@johnelliott7375]

Wouldn't miss it and Merry Christmas JMJ!!!!

[@JustMoparJoe]

Thanks John! Merry Christmas, and a prosperous new year!

[@don66hotrod94]

Merry Christmas Joe! Thanks for all your hard work and great info. I have to get the gas gauge working on the 71 Charger. I hate having to walk for gas LOL

[@JustMoparJoe]

Thanks for the support! It’s a pain to have to call for a can!

[@turboomni848]

thank you Joe ,,you have a great channel

[@JustMoparJoe]

Thanks brother! Welcome aboard!

[@trustjah]

Love the shirt.

[@lochnessfox3441]

Well thanks and merry Christmas to you as well!

[@JustMoparJoe]

Thanks brother! Looking forward to a big new year!

[@pacificregionalhauling4004]

Merry Christmas Joe. Great channel, keep up the good work. Mike Alberta (Canada)

[@JustMoparJoe]

Thanks for the Support Mike! Merry Christmas!

[@mikeeiben3430]

Merry Christmas to you and your family!

[@JustMoparJoe]

Thanks Mike! Merry Christmas!

[@moparme2733]

Merry Christmas to you and your family great video!!

[@JustMoparJoe]

Thanks brother! Thanks for the support and comments!

[@timmills9727]

Merry Christmas Joe!

[@JustMoparJoe]

Thanks Tim! Thanks for the support!

[@cameronpowell8584]

Merry Christmas Joe🎄🎅

[@JustMoparJoe]

Thanks brother

[@sazzarath]

Merry Christmas to you and your family

[@JustMoparJoe]

Merry Christmas! Thanks for the support!

[@1563smb]

Merry Christmas Joe😁

[@JustMoparJoe]

Merry Christmas Shane!

[@robertmagni7201]

Thanks Joe another informative video. When I mess with electrical stuff I keep a fire extinguisher close ! Merry Christmas 🎄

[@JustMoparJoe]

Haha! Thanks Rob! Merry Christmas!

[@Mynextproject_74]

Hey, Merry Christmas to you too!

[@JustMoparJoe]

Thank you! Merry Christmas to you and yours!

[@musclecarmitch908]

Great video and tips Joe! And Merry Christmas to you and your family also!

[@JustMoparJoe]

Merry Christmas Mitch! Thanks for the support!

[@chrisprice4420]

Merry Christmas Joe

[@JustMoparJoe]

Thanks brother! Merry Christmas

[@vandalsr1959]

Merry Christmas buddy

[@keithhebert9334]

Merry Christmas Joe been awhile since I mess with those but I think you're on the right track looks like you need that new sending unit

[@JustMoparJoe]

Thanks Keith! Pulled and fixed it today!

[@DuddiesAdventure]

Ah I see your using that East Texas gas card at 5:20 hahaha, Great episode and nice Tech Tip! Merry Christmas!

[@JustMoparJoe]

😂 practicing my mad max!

[@PeckerwoodKustoms]

Great little tip Joe...this is another job on my list...Im havin a gas gauge this time no matter what... Merry Xmas Sir, to you and your family!!

[@JustMoparJoe]

Merry Christmas to the Land down under!

[@rowdyreviews6530]

Should be able to read some ohm resistance with a volt meter maybe 70 -76omhs full, 20-15 half a tank and 7-10 empty these are just round about numbers but should be in the ball park number wise. Also I think you should get a pulsing voltage at the tank, should have like a voltage limiter somewhere in the system. Bit again not sure just going by what I know or how they work I have never had a problem with the fuel gauge on a old Mopar. Hope this helps some if not let me know I will get a wiring schematic and we will fix it up

[@JustMoparJoe]

Fixed it today. The aftermarket sender had grounded out inside. I isolated the sender wire again, and cured it! These are 10-80 ohms. It even had an adjustment screw on the float level. I got the gauge nearly perfect!

[@rowdyreviews6530]

@@JustMoparJoe I was close with the numbers, what is the prize I get off from the JustMoparJoes get in tight and get It right or get outta here!! Lol!! This is justMoparJoe show it is our favorite show because it's a Mopar show lol! All others will be removed at owners expense. Can anyone besides myself name this tune I just sang above lol!!

[@christopherbice862]

Deaddodgegarage had a video

[@BadTreeProductions]

Merry Christmas JMJ. Trouble shooting the hell out of it.

[@JustMoparJoe]

Thanks Blake!

[@TheMoparman1978]

Merry Christmas

[@JustMoparJoe]

Thanks for the support!

[@IronHorseGarage]

Just admit you missed the car!! There is a place that rebuilds the old fuel senders, I have it saved somewhere.... Merry Christmas Joe!!

[@JustMoparJoe]

It can finally go home. It’ll never be perfect, but it’s an excellent driver now. Glad you got to experience. It’s better than before!

[@donreinholz8121]

Interesting diagnosis. I'm guessing the sending unit in the tank fails more often that the Guage on the cluster.

[@JustMoparJoe]

Gotta start somewhere, but I agree.

[@rowdyreviews6530]

Also is the float stuck possibly

[@seanfattireguythomas2994]

A NOS sending unit is good find if a man can find them

[@JustMoparJoe]

This one is cured! The crap insulation they had withered and was grounding it from the inside. It was a new sender from 5 years back

[@chriswest5360]

Where do you get the white face gauge decals?

[@JustMoparJoe]

Maybe classic industries. They peeled after 4-5 years.

[@TheProchargedmopar]

👍💪

[@JustMoparJoe]

Thanks brother

[@kalimantangemstone]

Selamat siang selamat bekerja

[@JustMoparJoe]

Terima kasih

[@speedbuggy4095]

You still on that

[@JustMoparJoe]

It leaves tomorrow 🍾

[@jcnewbee8124]

I carry a gas can ....

[@JustMoparJoe]

The surest thing is a back up plan.

[@vandalsr1959]

Merry Christmas buddy

[@JustMoparJoe]

Merry Christmas Donald! Thanks for the support!