Case CX210 Excavator Error Code E7008

Case Heavy Equipment Critical Engine

Model: CX210 Excavator | Code: E7008

Applicable Systems
CX210 Excavator

Symptoms

The engine ECU reports a high coolant temperature fault. The gauge reads above 107C (225F) and the engine derates to 70% power to protect against thermal damage.

Possible Causes

  • Low coolant level due to leakage in the radiator or hoses
  • Water pump impeller worn or sheared, reducing coolant circulation
  • Radiator core blocked externally by dust, mud, or debris
  • Thermostat stuck closed preventing coolant flow through the radiator

Troubleshooting Steps

  1. Step 1: Check the coolant level in the surge tank and inspect for external leaks
    Fill to the COLD FULL line with the correct coolant mixture if low
  2. Step 2: Inspect the radiator core for external blockage
    Clean with low-pressure water from the fan side outward; avoid high pressure that damages fins
  3. Step 3: Verify water pump operation by checking the upper radiator hose temperature after warmup
    The hose should warm up gradually; if it stays cold, the pump or thermostat may be faulty
  4. Step 4: Test the thermostat by placing it in hot water at 82C (180F)
    The thermostat should begin to open at 82-87C; replace if it does not open

How to Reset

Reset: The engine derate clears automatically once coolant temperature drops below 100C. Cycle the key switch to clear the fault code.

Common Replacement Parts

  • Thermostat: 82C opening temperature (Match OEM part number for the engine model)
  • Water pump assembly: Complete with gasket (Replace coolant when installing new pump)
  • Coolant: 50/50 ethylene glycol and deionized water (Use premixed long-life coolant)

Frequently Asked Questions

  • Q: What coolant should I use?

    Use the OEM-specified heavy-duty diesel coolant. Mixing different coolant types can cause gelling and water pump seal damage.

  • Q: How often should the coolant be changed?

    Every 2000 hours or 2 years, whichever comes first. Extended-life coolants may last up to 6000 hours.

  • Q: Can I run with a slight coolant leak?

    No. Even small leaks lead to air pockets in the system, causing hot spots and cylinder head cracking.

Related Case Fault Codes

Source: OEM Service Manual

Category: Heavy Equipment