John Deere 1025R Sub-Compact Utility Tractor 23.9 HP ENG TEMP Error Fix: Engine Coolant Temperature High

Temperature gauge in red zone or warning light illuminates. STOP ENGINE — let cool. Causes: low coolant level, radiator screen clogged with debris (very common), thermostat stuck closed, water pump failure, blown head gasket. Clean radiator screen before every use.

critical2 fixes available✨ Free fix available

Quick Answer

Error ENG TEMP on the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP means: Engine Coolant Temperature High. The top-ranked community fix is “Replace Thermostat and Inspect Water Pump” (hard difficulty, ~90 min, DIY cost: $20-$40). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · compact tractor

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 compact tractor 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: $200-$300.

Other John Deere 1025R Sub-Compact Utility Tractor 23.9 HP Error Codes

3PT WON'T LIFT

Three-Point Hitch Won't Lift

2 fixes

AIR FILTER

Air Filter Restriction Indicator

2 fixes

CHARGE

Alternator / Charging System Fault

2 fixes

CRANKS NO START

Engine Cranks but Won't Start (Diesel)

2 fixes

ENG OIL PRESS

Low Engine Oil Pressure Warning

2 fixes

EXCESS SMOKE

Excessive Exhaust Smoke (Diesel)

Fuel System Warning

Glow Plug System Fault

2 fixes

People Also Ask About John Deere 1025R Sub-Compact Utility Tractor 23.9 HP Error ENG TEMP

What does error code ENG TEMP mean on a John Deere 1025R Sub-Compact Utility Tractor 23.9 HP?

Error code ENG TEMP on the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP means: Engine Coolant Temperature High. Temperature gauge in red zone or warning light illuminates. STOP ENGINE — let cool. Causes: low coolant level, radiator screen clogged with debris (very common), thermostat stuck closed, water pump failure, blown head gasket. Clean radiator screen before every use.

How do I fix error code ENG TEMP on my John Deere 1025R Sub-Compact Utility Tractor 23.9 HP?

The most successful fix is "Replace Thermostat and Inspect Water Pump" (hard difficulty, ~90 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

Is error code ENG TEMP on a John Deere 1025R Sub-Compact Utility Tractor 23.9 HP 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 1025R Sub-Compact Utility Tractor 23.9 HP error ENG TEMP myself?

Yes — the top-ranked community fix ("Replace Thermostat and Inspect Water Pump") is rated hard difficulty and takes about 90 minutes. Tools needed: Socket set, Torque wrench, Drain pan, Screwdrivers.

How much does it cost to repair John Deere 1025R Sub-Compact Utility Tractor 23.9 HP error ENG TEMP?

DIY cost: $20-$40. Professional repair typically costs $200-$300. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP have?

The John Deere 1025R Sub-Compact Utility Tractor 23.9 HP has 8 other known error codes, including: 3PT WON'T LIFT (Three-Point Hitch Won't Lift), AIR FILTER (Air Filter Restriction Indicator), CHARGE (Alternator / Charging System Fault), CRANKS NO START (Engine Cranks but Won't Start (Diesel)), ENG OIL PRESS (Low Engine Oil Pressure Warning), and 3 more.

What other error codes does the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP have?

The John Deere 1025R Sub-Compact Utility Tractor 23.9 HP has 8 other known error codes:

3PT WON'T LIFT — Three-Point Hitch Won't Lift (2 fixes)
AIR FILTER — Air Filter Restriction Indicator (2 fixes)
CHARGE — Alternator / Charging System Fault (2 fixes)
CRANKS NO START — Engine Cranks but Won't Start (Diesel) (2 fixes)
ENG OIL PRESS — Low Engine Oil Pressure Warning (2 fixes)
EXCESS SMOKE — Excessive Exhaust Smoke (Diesel) (2 fixes)
FUEL FILTER — Fuel System Warning (2 fixes)
GLOW PLUG — Glow Plug System Fault (2 fixes)

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