Fuel Sending Unit (JD 4020)

Gather App
UnlistMe
Inventry
cornstalk

cornstalk

Well-known member
Joined
Nov 25, 2004
Messages
235
City & State/Province
South Dakota
Hey all,

Recently picked up a new fuel sending unit for my 4020D from our local deere dealer. Removed the old, and installed the new. The previous gauge was stuck on E.

After installing the new sender. I turned the key on to find that the guage was now buried on F.

:?:

The tank is slightly under half per dowl stick. At first I assumed that I had put the sending unit in upside down. However, at slightly under half, I would be getting a reading of slightly over half.....if the unit was upside down. Anyone know....do these need to be calibrated somehow? Any ideas / insight ?

Thanks.
 
First thing I'd check would be all the electrical connections. Dirty, loose, corroded. My only other advice would be to paint it blue. :P

cfpinz
 
cornstalk":13q6hiuq said:
Hey all,

Recently picked up a new fuel sending unit for my 4020D from our local deere dealer. Removed the old, and installed the new. The previous gauge was stuck on E.

After installing the new sender. I turned the key on to find that the guage was now buried on F.

:?:

The tank is slightly under half per dowl stick. At first I assumed that I had put the sending unit in upside down. However, at slightly under half, I would be getting a reading of slightly over half.....if the unit was upside down. Anyone know....do these need to be calibrated somehow? Any ideas / insight ?

Thanks.
Click to expand...
If its pegged on F, the wire that goes to it must be grounded out. It might have a bare spot on it, touching a metal part of the tractor. Look for anyplace on the wire that might be grounded to the tractor frame, or engine.
 
Kiln-Dried Oak Wood for Pizza Ovens, 8-Inch Barkless Logs, Ideal for Ooni, Gozney, Solo Stove, and Other Wood-Fired Pizza Ovens- Approx. 15lbs
See price on Amazon
Kiln-Dried Oak Wood for Pizza Ovens, 8-Inch Barkless Logs, Ideal for Ooni, Gozney, Solo Stove, and Other Wood-Fired Pizza Ovens- Approx. 15lbs
Old Potters Kiln Dried Firewood - Cherry, 1100 Cu. in, 16-18 Logs ~ 8" x 2.5" Logs. Solo Stove and Cooking Wood for Grilling, Smoking, and Firepits, Cherry.
See price on Amazon
Old Potters Kiln Dried Firewood - Cherry, 1100 Cu. in, 16-18 Logs ~ 8" x 2.5" Logs. Solo Stove and Cooking Wood for Grilling, Smoking, and Firepits, Cherry.
Greenworks 24V 6in BL Pruning Saw w/Auto Oiler, Tool Only
See price on Amazon
Greenworks 24V 6in BL Pruning Saw w/Auto Oiler, Tool Only
Firewood Central Kiln-Dried PA Hickory – 8” Splits (Approx 39.5 lb) – Bold Smoking Wood for Pizza Ovens, BBQ & Fire Pits – Easy Light, Low Smoke, USA Sourced
See price on Amazon
Firewood Central Kiln-Dried PA Hickory – 8” Splits (Approx 39.5 lb) – Bold Smoking Wood for Pizza Ovens, BBQ & Fire Pits – Easy Light, Low Smoke, USA Sourced
39" Fire Pits with Wood Storage for Outside, Large Wood Burning Outdoor Fireplace with Chimney, Mesh Spark Screen & Fire Poker, Idea for Backyard, Patio, Party, Camping, Picnic
See price on Amazon
39" Fire Pits with Wood Storage for Outside, Large Wood Burning Outdoor Fireplace with Chimney, Mesh Spark Screen & Fire Poker, Idea for Backyard, Patio, Party, Camping, Picnic
2 Stroke Engines Oil Fuel Mixing Bottle 4 Ratios 32:1/50:1/40:1/25:1, Reusable Motorbike Motorcycle Lawnmower Brush Cutter Chainsaw White
See price on Amazon
2 Stroke Engines Oil Fuel Mixing Bottle 4 Ratios 32:1/50:1/40:1/25:1, Reusable Motorbike Motorcycle Lawnmower Brush Cutter Chainsaw White
Oregon Professional Compact 120-Volt Bench Grinder, Universal Saw Chain Sharpener, for All Chainsaw Chains (410-120)
See price on Amazon
Oregon Professional Compact 120-Volt Bench Grinder, Universal Saw Chain Sharpener, for All Chainsaw Chains (410-120)
Husqvarna 100000101 Classic Chainsaw Carrying Case
See price on Amazon
Husqvarna 100000101 Classic Chainsaw Carrying Case
MechMaxx Heavy Duty 3-Point PTO Powered Stump Root Grinder For 15-45HP Tractors With 34 Carbide Teeth, 6'' Cutting Depth, 24'' Flywheel Diameter, Model SG24 Orange
See price on Amazon
MechMaxx Heavy Duty 3-Point PTO Powered Stump Root Grinder For 15-45HP Tractors With 34 Carbide Teeth, 6'' Cutting Depth, 24'' Flywheel Diameter, Model SG24 Orange
MechMaxx Heavy Duty 3-Point PTO Powered Stump Root Grinder For 15-45HP Tractors With 34 Carbide Teeth, 6'' Cutting Depth, 24'' Flywheel Diameter, Model SG24 Green
See price on Amazon
MechMaxx Heavy Duty 3-Point PTO Powered Stump Root Grinder For 15-45HP Tractors With 34 Carbide Teeth, 6'' Cutting Depth, 24'' Flywheel Diameter, Model SG24 Green
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change.
Sounds to me like you have a bad ground to the sending unit. Try turning the switch on and then ground the sending unit good with a wire to the neg. post of the battery. At least it won't cost much to try it.
 
Cabo":2305jjes said:
Sounds to me like you have a bad ground to the sending unit. Try turning the switch on and then ground the sending unit good with a wire to the neg. post of the battery. At least it won't cost much to try it.
Click to expand...

On second thought, I think that VZCR is right. Sorry.
 
There should be a Faston (push on) terminal somewhere on the ring flange on the fuel tank where a ground wire is connected. I'll bet the wire is missing or dirty and not making connection.
 

Latest posts

Back
Top