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John Deere PE4045TF285 Engine

The John Deere PE4045TF285 is a 4.5 L engine rated at 1800 rpm, producing up to 91 kW. It powers generator sets from John Deere.

Also known as: John Deere PE4045TF285

4.5 L
Displacement
1800 rpm
Rated speed
91 kW
Gross power
On this pageSpecsGenerator setsMaintenanceFAQ

Engine specifications

Displacement4.5 L
Rated speed1800 rpm
Gross power91 kW

Troubleshooting

8

Fault codes

CodeMeaning
Sd Gen L1 <VShutdown Generator Line 1 Voltage Low
Sd Gen L2 <VShutdown Generator Line 2 Voltage Low
Sd Gen L3 <VShutdown Generator Line 3 Voltage Low

Symptoms & remedies

SymptomRemedy
Oil pressure value does not read 5 psi (34 kPa) within five secondsVisually inspect the engine for oil leaks. If the oil level is good, restart the unit and verify the loss of oil pressure. Shut the engine down immediately if the oil pressure value does not read 5 psi (34 kPa) within five seconds. Check the oil sender.
LOW COOLANT LEVELAllow the engine to cool. Check the coolant level in the radiator. To access the radiator cap, you must remove the access panel from the top of the enclosure directly above the radiator. Add coolant until it is 3/4 in. (1.9 cm) below the filler neck. Secure the radiator cap back into its original position. Inspect coolant hoses, engine block and water pump for visible leaks. Check the engine oil to verify no coolant has mixed with it (oil will appear milky if coolant is present). Consult the engine operator’s manual for additional information.
HIGH COOLANT TEMPERATURECheck the coolant level in the overflow jug. Restart the engine and read the coolant temperature to verify a high coolant temperature shutdown. Stop the engine immediately if the coolant temperature is 230°F (110°C) or more. Allow the engine to cool. Add coolant to the overflow jug if it is low and then check the level of coolant in the radiator. To access the radiator cap, you must remove the access panel from the top of the enclosure directly above the radiator. Add coolant until it is 3/4 in. (1.9 cm) below the filler neck. Secure the radiator cap back into its original position. Check the radiator shroud and ducting for blockage and remove any foreign matter. Inspect coolant hoses, engine block and water pump for visible leaks. Check the tension of the serpentine drive belt for the water pump. If no other problems are found, remove the load on the generator and restart the engine. Check the coolant temperature and shut the engine down immediately if it starts to overheat. Consult the engine operator’s manual for additional information on engine overheating.
OVERCRANK SHUTDOWNCheck the fuel level in the tank. Check for proper operation of the fuel pump. Check the air filter for blockage. If the engine will not start, consult the engine operator’s manual for additional information on trouble-shooting starting problems.
OVERSPEED OR UNDERSPEED SHUTDOWNDisconnect all loads and restart the generator. Read the frequency (Hz) on the LCD display. With no loads on the generator, the frequency should read 60.0 Hz. If the frequency is above or below 60.0 Hz, the engine speed will have to be adjusted. Refer to the engine operator’s manual for throttle adjustments on mechanical governed units and see the electronic governor manual for electronically controlled units.

Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.

Common problems

8
  • Shutdown Generator Line 3 Voltage Low Sd Gen L3 <V
  • Shutdown Generator Line 2 Voltage Low Sd Gen L2 <V
  • Shutdown Generator Line 1 Voltage Low Sd Gen L1 <V
  • OVERSPEED OR UNDERSPEED SHUTDOWN
    Fix: Disconnect all loads and restart the generator. Read the frequency (Hz) on the LCD display. With no loads on the generator, the frequency should read 60.0 Hz. If the frequency is above or below 60.0 Hz, the engine speed will have to be adjusted. Refer to the engine operator’s manual for throttle adjustments on mechanical governed units and see the electronic governor manual for electronically controlled units.
  • OVERCRANK SHUTDOWN
    Fix: Check the fuel level in the tank. Check for proper operation of the fuel pump. Check the air filter for blockage. If the engine will not start, consult the engine operator’s manual for additional information on trouble-shooting starting problems.
  • Oil pressure value does not read 5 psi (34 kPa) within five seconds
    Fix: Visually inspect the engine for oil leaks. If the oil level is good, restart the unit and verify the loss of oil pressure. Shut the engine down immediately if the oil pressure value does not read 5 psi (34 kPa) within five seconds. Check the oil sender.
  • LOW COOLANT LEVEL
    Fix: Allow the engine to cool. Check the coolant level in the radiator. To access the radiator cap, you must remove the access panel from the top of the enclosure directly above the radiator. Add coolant until it is 3/4 in. (1.9 cm) below the filler neck. Secure the radiator cap back into its original position. Inspect coolant hoses, engine block and water pump for visible leaks. Check the engine oil to verify no coolant has mixed with it (oil will appear milky if coolant is present). Consult the engine operator’s manual for additional information.
  • HIGH COOLANT TEMPERATURE
    Fix: Check the coolant level in the overflow jug. Restart the engine and read the coolant temperature to verify a high coolant temperature shutdown. Stop the engine immediately if the coolant temperature is 230°F (110°C) or more. Allow the engine to cool. Add coolant to the overflow jug if it is low and then check the level of coolant in the radiator. To access the radiator cap, you must remove the access panel from the top of the enclosure directly above the radiator. Add coolant until it is 3/4 in. (1.9 cm) below the filler neck. Secure the radiator cap back into its original position. Check the radiator shroud and ducting for blockage and remove any foreign matter. Inspect coolant hoses, engine block and water pump for visible leaks. Check the tension of the serpentine drive belt for the water pump. If no other problems are found, remove the load on the generator and restart the engine. Check the coolant temperature and shut the engine down immediately if it starts to overheat. Consult the engine operator’s manual for additional information on engine overheating.

Compiled from service & troubleshooting documentation across every generator set that uses the John Deere PE4045TF285.

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterCheck the condition of the air filter by viewing the level of vacuum draw on the filter minder gauge. Replace the air filter when the yellow center bar reaches the red section on the gauge (20 in. H2O).—
Fuel filterCheck fuel filter/water separator bowl as required. Replace primary air cleaner when dust valve restriction indicator gauge shows a vacuum of 25 in. H2O.—
Oil filterChange the oil and oil filter after the first 100 hours, then every 250 hours. If John Deere Plus 50 II engine oil is used, the interval can be increased to every 500 hours.—
BatteryService battery as required. Check engine electrical ground connection, check fuses, replace fuel filter elements, check air intake hoses, connections, and system.—
BeltCheck belt tensioners. John Deere engines use two types of belt tensioners: manual and automatic.—
CoolantCheck the coolant level daily. The coolant is checked by visually inspecting the level in the coolant overflow jug, located near the radiator.—
OilCheck oil level daily before starting the engine. DO NOT start the generator if the oil level is below the 'ADD' mark on the dipstick.—
Spark plugReplace spark plugs as required. Check automatic belt tensioner and belt wear, check cooling system.—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

What is the displacement of the John Deere PE4045TF285?

The John Deere PE4045TF285 has a displacement of 4.5 liters.

Which generators use the John Deere PE4045TF285 engine?

The John Deere PE4045TF285 powers 1 generator set(s), including John Deere PE4045TF285.

What is a common problem with the John Deere PE4045TF285 engine?

A commonly reported issue on generators using the John Deere PE4045TF285 is: Shutdown Generator Line 3 Voltage Low.