Wrong Fuel-Level

Mechanixx · Apr 24, 2019

Hallo at all

at first - sorry for my newbe-question

My fuel gauge only shows 75% when the Coronet is fully fueled.

When i am running lower the fuel-level which is showed falls under zero even though there is still fuel left.

How could i fix that and where does it come from ?

Greetings from germany

Dennis H · Apr 24, 2019

Characteristic. Join the club. Mine did too until a ground was discovered after about 25 years.

69L48Z27 · Apr 24, 2019

You have to tweak the float arms on the aftermarket units.

moparedtn · Apr 24, 2019

Nobody in the aftermarket makes a decent fuel sending unit for our late 60's b-bodies.
Further, NOS units are unobtanium - and if you actually do find one, it's huge $$$.
There are a lot of folks suffering from this affliction.

XMAN JR · Apr 24, 2019

moparedtn said:
Nobody in the aftermarket makes a decent fuel sending unit for our late 60's b-bodies.
Further, NOS units are unobtanium - and if you actually do find one, it's huge $$$.
There are a lot of folks suffering from this affliction.

Amen to that !

1967coronet · Apr 24, 2019

Just me....... but if your sender is reading 3/4 when full and falling with fuel use you got a good aftermarket sender.

XMAN JR · Apr 25, 2019

My aftermarket unit reads 1/4 when empty. 1/2 =1/4 & so on LMAO

Ruby67 · Apr 25, 2019

I have the same issue with my aftermarket sender. This is the fix I used.
https://www.technoversions.com/MeterMatchHome.html

BIGSHCLUNK · Apr 25, 2019

Mine always reads less than what I actually have.... better than the other way around tho.

Daves69 · Apr 25, 2019

Don't trash the original if you still have 'em. Some repair tips recently posted on Abodies may help some...….
https://www.forabodiesonly.com/mopar/ams/oem-fuel-sender-repair-1967-dart.225/

Durandal25 · Apr 27, 2022

Ruby67 said:
I have the same issue with my aftermarket sender. This is the fix I used.
https://www.technoversions.com/MeterMatchHome.html

I think I'm going to try this.

When full, my gauge reads 1/4. I've tried a lot of things....and do not want to drain the tank and keep risking a fire.

The Crusher · Apr 27, 2022

Your fuel sending arm may be sticking. Try running a few tanks of gas with a good fuel system cleaning additive first. I used a Chevron with Techron Concentrate Plus in my van and now my gauge works properly.
https://www.amazon.com/Chevron-Techron-Concentrate-System-Cleaner/dp/B00092893E?th=1

Durandal25 · Apr 27, 2022

The Crusher said:
Your fuel sending arm may be sticking. Try running a few tanks of gas with a good fuel system cleaning additive first. I used a Chevron with Techron Concentrate Plus in my van and now my gauge works properly.
https://www.amazon.com/Chevron-Techron-Concentrate-System-Cleaner/dp/B00092893E?th=1

Probably not in my case. Removed sending unit and tested it with same results

chtampa · Apr 28, 2022

Isn't the fuel sender run through the Voltage Limiter? It may be an easy fix.

Durandal25 · Apr 28, 2022

chtampa said:
Isn't the fuel sender run through the Voltage Limiter? It may be an easy fix.

Yes it does, but if the sender ohms are goofy.....then the reading will be. The Meter box lets you calibrate that. Got one yesterday and will install later today

Wrong Fuel-Level

Mechanixx

Member

Dennis H

FBBO Gold Member

69L48Z27

Well-Known Member

moparedtn

I got your Staff Member riiiight heeeere...

XMAN JR

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1967coronet

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XMAN JR

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Ruby67

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BIGSHCLUNK

FBBO Gold Member

Daves69

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Durandal25

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The Crusher

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Durandal25

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chtampa

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Durandal25

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