🔧Appliance

FUEL LEAK

John Deere · JS46 Walk-Behind Mower 21 in.

John Deere JS46 Walk-Behind Mower 21 in. FUEL LEAK Error Fix: Fuel Leaking

Fuel dripping from mower. Causes: cracked fuel tank, fuel cap gasket deteriorated, carburetor float valve stuck open, primer bulb cracked, fuel line deteriorated. Do NOT store a leaking mower in a garage — fire hazard.

critical2 fixes available

Quick Answer

Error FUEL LEAK on the John Deere JS46 Walk-Behind Mower 21 in. means: Fuel Leaking. The top-ranked community fix is “Replace Fuel Tank, Carburetor Float Valve, and Primer Bulb” (medium difficulty, ~60 min, DIY cost: $20-$40). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · push mower

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many push mower repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $150-$250.

Other John Deere Models with Error FUEL LEAK

JS26 Self-Propelled Mower 190cc 21 in.

push_mower · 2 fixes

Other John Deere JS46 Walk-Behind Mower 21 in. Error Codes

BLADE WON'T STOP

Blade Won't Stop When Released

2 fixes

DECK CLOG

Grass Clumping Under Deck

2 fixes

DIES UNDER LOAD

Engine Stalls When Cutting

2 fixes

ENGINE SURGES

Engine Surges or Hunts

Excessive Oil Smoke

Starter Cord Hard to Pull

Excessive Vibration

Oil Leaking

People Also Ask About John Deere JS46 Walk-Behind Mower 21 in. Error FUEL LEAK

What does error code FUEL LEAK mean on a John Deere JS46 Walk-Behind Mower 21 in.?

Error code FUEL LEAK on the John Deere JS46 Walk-Behind Mower 21 in. means: Fuel Leaking. Fuel dripping from mower. Causes: cracked fuel tank, fuel cap gasket deteriorated, carburetor float valve stuck open, primer bulb cracked, fuel line deteriorated. Do NOT store a leaking mower in a garage — fire hazard.

How do I fix error code FUEL LEAK on my John Deere JS46 Walk-Behind Mower 21 in.?

The most successful fix is "Replace Fuel Tank, Carburetor Float Valve, and Primer Bulb" (medium difficulty, ~60 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

Is error code FUEL LEAK on a John Deere JS46 Walk-Behind Mower 21 in. serious?

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix John Deere JS46 Walk-Behind Mower 21 in. error FUEL LEAK myself?

Yes — the top-ranked community fix ("Replace Fuel Tank, Carburetor Float Valve, and Primer Bulb") is rated medium difficulty and takes about 60 minutes. Tools needed: Socket wrench set, Flathead screwdriver, Needle-nose pliers.

How much does it cost to repair John Deere JS46 Walk-Behind Mower 21 in. error FUEL LEAK?

DIY cost: $20-$40. Professional repair typically costs $150-$250. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the John Deere JS46 Walk-Behind Mower 21 in. have?

The John Deere JS46 Walk-Behind Mower 21 in. has 8 other known error codes, including: BLADE WON'T STOP (Blade Won't Stop When Released), DECK CLOG (Grass Clumping Under Deck), DIES UNDER LOAD (Engine Stalls When Cutting), ENGINE SURGES (Engine Surges or Hunts), EXCESSIVE SMOKE (Excessive Oil Smoke), and 3 more.

Which other John Deere models have the FUEL LEAK error?

Error code FUEL LEAK also appears on 1 other John Deere model: JS26 Self-Propelled Mower 190cc 21 in.. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the John Deere JS46 Walk-Behind Mower 21 in. have?

The John Deere JS46 Walk-Behind Mower 21 in. has 8 other known error codes:

BLADE WON'T STOP — Blade Won't Stop When Released (2 fixes)
DECK CLOG — Grass Clumping Under Deck (2 fixes)
DIES UNDER LOAD — Engine Stalls When Cutting (2 fixes)
ENGINE SURGES — Engine Surges or Hunts (2 fixes)
EXCESSIVE SMOKE — Excessive Oil Smoke (2 fixes)
HARD TO PULL — Starter Cord Hard to Pull (2 fixes)
HIGH VIBRATION — Excessive Vibration (2 fixes)
OIL LEAK — Oil Leaking (2 fixes)

Which other John Deere models have the FUEL LEAK error?

Error code FUEL LEAK also appears on 1 other John Deere model:

JS26 Self-Propelled Mower 190cc 21 in. (push mower) · 2 fixes

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