Calibrated fuel sender to the fuel gauge on the Charger

raven68 · Post by **raven68** » Tue May 30, 17 10:46 pm

Ive had this Charger for 2 years now and finally I was fed-up with the fuel gauge being so inaccurate I was having to calculate fuel consumption versus mileage on a calculator every time we went on a journey... so it was time to strip and check/renew or recalibrate the fuel sender. In the end it was the latter so it was just a case of bending the float arm by an appropriate amount. Previously when the guage said empty there was still 120 miles of fuel left in the tank. Now when it says empty it means it.............!

Hopefully you can see the picture story here on our Facebook page

EDIT - well clearly links to Facebook don't work very well....! I'll post the pictures on here tomorrow.........

raven68 · Post by **raven68** » Tue May 30, 17 11:02 pm

Started with removing the tank of course !

adrianp · Post by **adrianp** » Tue May 30, 17 11:08 pm

I remember battling this as well. Got a new sender, calibrated it, installed it - was way off. I think my mistake was calibrating on the documented factory resistance settings for full and empty. I prefer your method of using the actual gauge in the car for the calibration.

As an aside I came across this a little while ago as an alternate solution:

http://www.technoversions.com/MeterMatchHome.html

adrian.

raven68 · Post by **raven68** » Tue May 30, 17 11:10 pm

Removed the fuel sender and it was a brand new unit which was good

raven68 · Post by **raven68** » Tue May 30, 17 11:11 pm

Had a peep through the filler pipe hole and the tank is pretty new as well

raven68 · Post by **raven68** » Tue May 30, 17 11:17 pm

So moved the float arm to its maximum FULL extent and the fuel gauge only reads half full......

raven68 · Post by **raven68** » Tue May 30, 17 11:19 pm

Bend the stop tab back and move the arm round to where the fuel gauge now reads full......

raven68 · Post by **raven68** » Tue May 30, 17 11:27 pm

Put a bend into the float arm so that the arm still points to the FULL + mark on the casing that I marked with a felt pen in the previous stage and so that it rests against the maximum stop tab again. Then when the float arm is at its lowest EMPTY position, although its not against the lowest stop tab the float is actually resting in the fully empty position anyway.... refit into the tank, refit into the car and the fuel gauge now reads properly. Why they are so far out in the first place baffles me ! Apologies if this simple thing has been posted before but I was quite chuffed that it all worked out to be fairly straightforward job that I should have done ages ago...

ROB · Post by **ROB** » Thu Sep 21, 17 9:09 pm

GOOD BIT OF INFO AS WE HAVE GO SIMILAR PROBLEM ON THE 68 CORONET
WE HAVE JUST FITTED A NEW SENDER AND NOT SURE IF IS READING CORRECT