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Fuel Level Gauge 1985 truck #2090538
06/12/16 11:00 AM
06/12/16 11:00 AM
Joined: Apr 2013
Posts: 51
Jacksonville, AR
D
dmckeehan Offline OP
member
dmckeehan  Offline OP
member
D

Joined: Apr 2013
Posts: 51
Jacksonville, AR
Having issues with fuel level gauge. Truck is an 1985 W150. gauge reads full all the time. pulled sender, cleaned, checked float. used ohm meter to check resistance in full and empty positions, all checked good. Changed gauge out with known good gauge from another truck. stumped......


1985 Crew Cab W250 4x4 - daily driver, 5.9 magnum, carbed and distributor, A-518 and NP205
2002 3500 extended cab, 4x4, Cummins and 6 speed
1997 Ram 2500 5.9 with 35 Boggers - Mud Racer
1993 Dakota 4x4, Dana 60's front and rear - work in progress
1992 Dakota 2wd short bed, awaiting 440 swap
Re: Fuel Level Gauge 1985 truck [Re: dmckeehan] #2090560
06/12/16 11:58 AM
06/12/16 11:58 AM
Joined: Jan 2003
Posts: 2,673
Northern MN
1E2C Offline
master
1E2C  Offline
master

Joined: Jan 2003
Posts: 2,673
Northern MN
Scraped or pinched wire somewhere along the frame??

Re: Fuel Level Gauge 1985 truck [Re: dmckeehan] #2090702
06/12/16 04:09 PM
06/12/16 04:09 PM
Joined: Jan 2003
Posts: 2,094
central texas
K
krautrock Offline
top fuel
krautrock  Offline
top fuel
K

Joined: Jan 2003
Posts: 2,094
central texas
check that voltage regulator on the back of the instrument panel circuit board...

if the voltage is high it will peg the gauge i think.

better yet if you can solder, you can install a solid state VR from $4 worth of parts form radio shack.
http://www.allpar.com/history/mopar/electrical2.html

Re: Fuel Level Gauge 1985 truck [Re: dmckeehan] #2090709
06/12/16 04:21 PM
06/12/16 04:21 PM
Joined: Dec 2010
Posts: 1,035
Missouri U.S.A.
7
71yelladustr Offline
super stock
71yelladustr  Offline
super stock
7

Joined: Dec 2010
Posts: 1,035
Missouri U.S.A.
If gauge reads past full with key on and with sender unplugged, the sending unit to gauge wire is shorted to ground.

Last edited by 71yelladustr; 06/12/16 04:22 PM.

392 gen III hemi on E-85 727 trans Dana 60
10.02@134






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