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1987 Ford 655C Backhoe Stalling Under Load: Causes and Solutions
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Introduction
The 1987 Ford 655C backhoe has been reported to stall when put under load, which affects productivity and safety during operation. This article summarizes user experiences and troubleshooting advice to identify common causes and recommend solutions for this issue.
Symptoms
  • The engine stalls or dies when the backhoe arm is engaged or under heavy hydraulic load.
  • Stalling occurs intermittently or consistently under load.
  • The engine may struggle to maintain RPMs before shutting down.
Possible Causes
  • Fuel Delivery Issues: Clogged fuel filters or weak fuel pumps can cause insufficient fuel supply when the engine is under load.
  • Air Intake Problems: Dirty or restricted air filters reduce airflow, affecting combustion efficiency.
  • Hydraulic System Load: Excessive hydraulic pressure or worn hydraulic components increase engine load beyond its capacity.
  • Engine Timing or Injector Problems: Incorrect fuel injection timing or faulty injectors can cause poor engine response under load.
  • Electrical or Sensor Faults: Malfunctioning sensors or wiring issues can cause engine control problems leading to stalls.
Troubleshooting Steps
  • Inspect and replace fuel filters; check fuel pump operation and fuel lines for leaks or blockages.
  • Clean or replace air filters to ensure proper airflow.
  • Test hydraulic system pressure and inspect for worn pumps or valves causing excessive load.
  • Check injector timing and condition; perform engine diagnostic if possible.
  • Examine electrical wiring and sensor connections for faults or damage.
Maintenance Recommendations
  • Perform regular maintenance on fuel and air systems.
  • Monitor hydraulic system health and maintain recommended pressures.
  • Keep engine tune-ups current, including injector servicing.
  • Address any electrical warning indicators promptly.
Conclusion
Stalling under load in the 1987 Ford 655C backhoe is often related to fuel delivery, air intake, hydraulic load, or engine control issues. Systematic troubleshooting and regular maintenance can identify and resolve these problems, ensuring reliable operation and minimizing downtime.
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1987 Ford 655C Backhoe Stalling Under Load: Causes and Solutions - by MikePhua - 07-20-2025, 11:21 AM

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