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Fuel Gauge stopped working

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tanman

Fuel Gauge stopped working

Where to begin troubleshooting this? I put a new tank in a month ago. Same sender. Everything was good until yesterday.

86 F150 4.9 Automatic

Gary Lewis

Re: Fuel Gauge stopped working

Administrator

Pull the wire off the sending unit and ground it to determine if it is the sending unit. If grounding it works then the sending unit has to be bad.

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

1986F150Six

Re: Fuel Gauge stopped working

Administrator

Did the water temperature and oil pressure gauges stop working as well?

FuzzFace2

Re: Fuel Gauge stopped working

I had a new sender stop working after a short time.
Grounding the wire showed the gauge still worked for that tank so was not the switch.
Come to find out the float filled with fuel and sunk so no reading

I replaced it with the old one and been working for years now.
Dave ----

Dave G.
81 F100 flare side 300 six / AA OD / NP435 / 2.75 gear
http://cars.grantskingdom1.com/index.php/1980-Ford-F100?page=1
81 F100 style side 300 six/SROD parts truck -RIP
http://cars.grantskingdom1.com/index.php/1981-Ford-F100