Applicable Systems
EC220 Excavator
Symptoms
Engine shuts down immediately after cold start; no smoke from exhaust.
Possible Causes
- Glow plug circuit failure—no pre-heat.
- Fuel shut-off solenoid stuck closed or wiring break.
- Crank position sensor intermittent open circuit.
Troubleshooting Steps
- Step 1: Measure glow plug resistance; check relay output.
Each plug 0.8–1.2 Ω; relay supplies 24 V for 15 seconds. - Step 2: Listen for shut-off solenoid click when key switched on.
Audible click; solenoid pulls in and holds with 24 V. - Step 3: Check crank sensor AC voltage while cranking.
AC output ≥ 2 V peak-to-peak at 200 RPM cranking.
How to Reset
Replace glow plugs, shut-off solenoid, or crank sensor; clear DTCs with VCADS Pro.
Common Replacement Parts
- Glow Plug Kit 04197847: Glow Plug Kit 04197847
- Shut-off Solenoid 04199900: Shut-off Solenoid 04199900
Frequently Asked Questions
- Q: Can I start without glow plugs in warm weather?
Yes above 10°C, but always needed below 5°C for clean combustion.
- Q: What is VCADS Pro?
Volvo diagnostic software for construction equipment ECUs.
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Source: Volvo EC220E Engine Service Manual
Category: Heavy Equipment
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