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John Deere 5050D, 5045D, 5042D Troubleshooting
John Deere 5050D, 5045D, 5042D Engine Problems
Engine hard to start or will not start
Improper starting procedure - Reviewing starting procedure. No fuel -
Check fuel tank. Air in fuel tank - Bleed fuel tank. Hand primer left
raised - Push primer down. Crankcase oil too heavy - Use oil of proper
viscosity. Improper type of fuel - Consult fuel supplier; use proper
type fuel for operating conditions. Water, dirt, or air in fuel system -
Drain, flush, fill and bleed system. Clogged fuel filter - Replace
filter element. Dirty or faulty injectors - Check injectors. Fuel
shutoff valve closed - Open fuel shutoff valve.
Engine knocks
Insufficient oil - Add oil. Injection pump out of time - Check and
adjust. Low coolant temperature - Service as required.
Engine runs irregularly or stalls frequently
Low coolant temperature - Service as required. Clogged fuel filter -
Replace filter element. Water, dirt, or air in fuel system - Drain,
flush, fill, and bleed system. Dirty or faulty injectors - Check
injectors. Improper type of fuel - Use proper fuel.
Below normal engine temperature
Defective temperature gauge or sender - Check gauge, sender, and
conditions.
Lack of power
Engine overloaded - Reduce load or shift to lower gear. Low fast idle
speed - Service and adjust. Intake air restriction - Service air
cleaner. Clogged fuel filter - Replace filter element. Improper type of
fuel - Use proper fuel. Below normal engine temperature - Service as
required. Improper valve clearance - Adjust valve clearance. Dirty or
faulty injectors - Check injectors. Turbocharger not functioning -
Repair. Leaking exhaust manifold gasket - Replace gasket. Implement
improperly adjusted - See implement operator's manual. Restricted fuel
line - Check and service. Restricted return line - Check and service.
Improper ballast - Adjust ballast to load.
Low oil pressure
Low oil level - Add oil. Improper type of oil - Drain, fill crankcase
with oil of proper viscosity and quality.
High oil consumption
Crankcase oil too light - Use proper viscosity oil. Oil leaks - Check
for leaks in lines, around gaskets and drain plugs. Restricted crankcase
vent tube - Clean vent tube.
JD 5050D, 5045D, 5042D Engine emits white
smoke
Improper type fuel - Use proper fuel. Low engine temperature - Warm up
engine to normal operating temperature. Defective thermostat - Replace.
Defective injection nozzles - Check and service. Engine out of time -
Service and repair. Cold start advance or light load advance not
functioning - Check and service.
Engine emits black or gray exhaust smoke
Improper type of fuel - Use proper fuel. Clogged or dirty air cleaner -
Service air cleaner. Engine overloaded - Reduce load or shift to a low
gear. Injection nozzles dirty - Check and clean. Engine out of time -
Service and repair. Turbocharger not functioning - Repair.
JD 5050D, 5045D, 5042D Engine overheats
Dirty radiator core, or grille screens - Remove all trash. Engine
overloaded - Shift to lower gear or reduce load. Low engine oil level -
Check oil level. Add oil as required. Low coolant level - Fill radiator
to proper level, check radiator, and hoses for loose connection or
leaks. Faulty radiator cap - Replace cap. Loose or defective fan belt(s)
- Adjust belt tension(s). Cooling system needs flushing - Flush cooling
system. Defective thermostat - Replace. Defective temperature gauge or
sender - Service and repair. Incorrect grade of fuel - Use proper fuel.
High fuel consumption
Improper type of fuel - Use proper fuel. Clogged or dirty air cleaner -
Service air cleaner. Engine overloaded - Reduce load or shift to a lower
gear. Implement improperly adjusted - See implement operator's manual.
Low engine temperature - Service and repair. Excessive ballast - Adjust
ballast to load. Defective turbocharger - Replace. Restricted air intake
system - Check system. Plugged crankcase vent tube - Clean vent tube.
John Deere 5050D, 5045D, 5042D Transmission
Troubleshooting
Transmission oil overheats
Low oil supply - Fill system with correct oil. Clogged
transmission-hydraulic oil filter - Replace filter. Internal hydraulic
leak - Check and service. Hitch feedback linkage improperly adjusted -
Reset linkage. Hydraulic motor not plumbed correctly - Adjust or
replace.
Low transmission pressure
Low oil supply - Fill system with correct oil. Clogged
transmission-hydraulic oil filter - Replace filter.
John Deere 5050D, 5045D, 5042D Hydraulic
System Problems
Entire hydraulic system fails to function
Low oil supply - Fill system with correct oil. Clogged
transmission-hydraulic filter - Replace filter. Clogged
transmission-hydraulic pickup screen - Clean pickup screen.
High-pressure internal leak - Service and adjust.
Hydraulic oil overheats
Low oil supply - Fill system with correct oil. Clogged
transmission-hydraulic oil filter - Replace filter. Internal hydraulic
leak - Service and adjust. Hitch feedback linkage improperly adjusted -
Reset linkage.
JD 5050D, 5045D, 5042D Brakes Troubleshooting
No solid pedal feel - Pedals adjusted incorrectly. Adjust it. Pedal
settles - Rear brake piston seal leaking.
Excessive pedal travel - Pedals adjusted incorrectly. Adjust it.
Brakes drag during transport - Brakes out of adjustment.
John Deere 5050D, 5045D, 5042D Rockshaft and
3-Point Hitch Problems
Insufficient transport clearance
Center link too long - Adjust center link. Lift links to long - Adjust
lift links. Implement not level - Level implement. Implement not
properly adjusted - See implement operator's manual. Front of center
link in upper holes - Move center link to lower holes. Sway chains
adjusted to short - Lengthen sway chains.
Hitch drops slowly
Rockshaft rate-of-drop control not properly set - Adjust rate-of-drop
knob.
JD 5050D, 5045D, 5042D Hitch fails to lift or
lifts slowly
Excessive load on hitch - Reduce load. Low oil level - Fill system with
proper oil. Hydraulic oil too cold - Allow oil to warm.
Transmission-hydraulic oil filter clogged - Replace filter.
Transmission-hydraulic pickup screen clogged - Clean or replace pickup
screen.
Implement will not operate at desired depth
Lift links too short - Adjust lift links. Lack of penetration - See
implement operator's manual. Improper setting of limit stop - Reset
position limit. Improper setting of draft lever - Adjust Rockshaft and
3-Point Hitch.
Insufficient or no hitch response to draft
load
Front attachment of center link in upper holes - Move center link
attachment to lower bracket holes. Draft control lever in Off position -
Move lever rearward. Lift links too short - Adjust lift links. Lack of
penetration - See implement operator's manual. Rate-of-drop too slow -
Adjust rate-of-drop valve.
Hitch too responsive
Front attachment on center link in lower bracket holes - Move center
link attachment to upper bracket holes. Improper draft sensing
adjustment - Move lever forward.
Hitch drops too fast
Rate-of-drop set too fast - Adjust rate-of-drop.
Rockshaft control levers drift. Levers too
loose
Friction disks are loose - Adjust rockshaft control lever friction.
John Deere 5050D, 5045D, 5042D Remote
Hydraulic Cylinders Problems
Direction of remote cylinder travel is
reversed
Improper hose connections - Reverse hose connections.
Hoses will not couple
Improper hose male tips - Replace tip with ISO standard tips.
Remote cylinder will not lift load
Excessive load - Reduce load. Hoses not completely installed - Attach
hoses correctly.
Direction of travel reverses on II SCV
SCV lever moved to regenerate position - Reverse hose couplings.
John Deere 5050D, 5045D, 5042D Electrical
System Problems
Battery will not charge
Loose or corroded connections - Clean and tighten connections. Sulfated
or worn-out battery - Check electrolyte level and specific gravity.
Loose or defective alternator/fan belt - Adjust belt tension or replace
belt.
Charging system indicator glows with engine
running
Low engine speed - Increase speed. Defective battery - Check electrolyte
level and specific gravity. Defective alternator - Replace. Slipping
alternator/fan belt - Adjust belt tension.
Starter inoperative
Range shift lever in gear - Move lever to neutral. PTO lever in engaged
position - Move PTO lever to disengaged position. Low battery output -
Charge the battery. Blown fuse - Replace fuse.
Starter cranks slowly
Low battery output - Check electrolyte level and specific gravity.
Crankcase oil too heavy - Use proper viscosity oil. Loose or corroded
connections - Clean and tighten loose connections.
Entire electrical system does not function
Faulty battery connections - Clean and tighten connections. Sulfated or
worn-out battery - Check electrolyte level and specific gravity. Blown
fuse - Replace fuse.
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