07-30-2025, 01:13 AM
Introduction
The Case 1845C skid steer loader is a workhorse in construction and agriculture, but like any machine, it can suffer from mechanical and electrical hiccups—especially after long periods of inactivity. One recurring issue is the engine starting briefly and then cutting off, leaving operators puzzled and operations stalled. This article explores the root causes, diagnostic steps, and real-world fixes for this frustrating problem, enriched with terminology explanations, historical context, and anecdotes from the field.
Symptoms and Initial Observations
After sitting idle for months, the 1845C may start and run momentarily, only to shut down when hydraulic functions are engaged or when attempting to move. Sometimes it restarts after a day’s rest, only to stall again after minimal use.
Common Symptoms:
The most cited culprit is fuel delivery. After months of inactivity, condensation in the tank can contaminate fuel with water, clogging filters and starving the engine.
Recommended Checks:
Electrical issues often masquerade as fuel problems. A faulty relay or corroded wire can intermittently cut power to the solenoid, mimicking fuel starvation.
Troubleshooting Tips:
One technician recalled a similar issue on a 1980s Cummins-powered loader. The solenoid’s hold coil had failed, allowing the engine to start but not continue running. The fix? Replacing the solenoid and adjusting the shutoff linkage—a lesson that still applies to modern machines.
Case Study: The Mystery of the Six-Foot Stall
An operator reported that his 1845C would start and run at half throttle, but stall after moving forward six feet. The issue was traced to a faulty electric fuel pump and a clogged inline filter. After replacing both and cleaning the solenoid, the machine ran smoothly. This case highlights how minor components can cause major disruptions.
Preventive Measures and Best Practices
In 2023, a surge in diesel equipment failures was reported across the Midwest due to biofuel blends absorbing moisture. Mechanics noted a spike in fuel system cleanouts and solenoid replacements. This underscores the importance of fuel quality and seasonal maintenance.
Conclusion
The Case 1845C’s start-and-stall issue is a multifaceted problem, often rooted in fuel delivery and electrical inconsistencies. By methodically inspecting filters, pumps, solenoids, and wiring, operators can restore reliability. And as the stories and fixes show, even the most stubborn machines can be coaxed back to life with patience, precision, and a bit of old-school ingenuity.
The Case 1845C skid steer loader is a workhorse in construction and agriculture, but like any machine, it can suffer from mechanical and electrical hiccups—especially after long periods of inactivity. One recurring issue is the engine starting briefly and then cutting off, leaving operators puzzled and operations stalled. This article explores the root causes, diagnostic steps, and real-world fixes for this frustrating problem, enriched with terminology explanations, historical context, and anecdotes from the field.
Symptoms and Initial Observations
After sitting idle for months, the 1845C may start and run momentarily, only to shut down when hydraulic functions are engaged or when attempting to move. Sometimes it restarts after a day’s rest, only to stall again after minimal use.
Common Symptoms:
- Engine starts but stalls within seconds
- Cuts off when bucket or drive functions are activated
- No restart until hours later
- Fuel pump runs intermittently
- Electrical connections appear clean but unreliable
- Injection Pump Solenoid: An electrically controlled valve that allows fuel into the injection pump when energized. If faulty, it can prevent fuel delivery.
- Lift Pump: A low-pressure pump that supplies fuel from the tank to the injection pump. Can be mechanical or electric.
- Primer Handle: A manual pump used to purge air from the fuel system.
- Banjo Fitting: A type of fluid connection with a hollow bolt, often used in fuel systems.
- VE Pump: A rotary distributor-type injection pump made by Bosch, common on Case 1845C models.
The most cited culprit is fuel delivery. After months of inactivity, condensation in the tank can contaminate fuel with water, clogging filters and starving the engine.
Recommended Checks:
- Replace all fuel filters, including inline filters near the electric pump
- Bleed air from the system using the banjo fitting bleed screw
- Inspect the electric fuel pump for consistent flow
- Check for corrosion or loose wiring at the pump and solenoid
- Verify fuel pressure (ideal: 5–6 psi; max: 10 psi to avoid seal damage)
Electrical issues often masquerade as fuel problems. A faulty relay or corroded wire can intermittently cut power to the solenoid, mimicking fuel starvation.
Troubleshooting Tips:
- Wiggle wires to detect intermittent connections
- Replace both relays (yellow and black) to rule out failure
- Test solenoid function by listening for a “click” when the key is turned
- Temporarily bypass the relay with alligator clips to test direct power delivery
One technician recalled a similar issue on a 1980s Cummins-powered loader. The solenoid’s hold coil had failed, allowing the engine to start but not continue running. The fix? Replacing the solenoid and adjusting the shutoff linkage—a lesson that still applies to modern machines.
Case Study: The Mystery of the Six-Foot Stall
An operator reported that his 1845C would start and run at half throttle, but stall after moving forward six feet. The issue was traced to a faulty electric fuel pump and a clogged inline filter. After replacing both and cleaning the solenoid, the machine ran smoothly. This case highlights how minor components can cause major disruptions.
Preventive Measures and Best Practices
- Always clamp intake hoses securely to prevent air leaks
- Use ATF (automatic transmission fluid) in the fuel tank occasionally to clean internal pump components
- Avoid high-pressure electric pumps that can damage seals
- Periodically inspect wiring harnesses under the seat for corrosion
In 2023, a surge in diesel equipment failures was reported across the Midwest due to biofuel blends absorbing moisture. Mechanics noted a spike in fuel system cleanouts and solenoid replacements. This underscores the importance of fuel quality and seasonal maintenance.
Conclusion
The Case 1845C’s start-and-stall issue is a multifaceted problem, often rooted in fuel delivery and electrical inconsistencies. By methodically inspecting filters, pumps, solenoids, and wiring, operators can restore reliability. And as the stories and fixes show, even the most stubborn machines can be coaxed back to life with patience, precision, and a bit of old-school ingenuity.
