Trouble Shooting
Diesel Engine Troubleshooting – Solution here:
Engine Overheating Under Load
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Check the air flow to the rad. Be sure it isn’t blocked by bugs no matter in good or bad weather.
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Check to be sure all axles are rolling freely. Therefore, be sure there are no brakes or tires dragging.
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Check the engine fan and belts to be sure they are operating properly.
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Check outside air temperature. If the air temperature is hot while you’re driving, gear down.
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Turn off the air conditioning on steep grades in hot weather. This will help keep the engine cool.
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Check the oil and coolant levels when the engine is cool. Check for leaks.
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