Tag Archives for troubleshooting

3116 and 3126 Truck Engines Problem Starting Motor Does Not Turn

Probable Cause(s): * Battery Has Low Output * Wires Or Switch Has Defect * Starting Motor Solenoid Has A Defect * Starting Motor Has A Defect 1. Battery has low output: Check condition of battery. Charge battery or make replacement … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Exhaust Temperature Too High

Probable Cause(s): * Air Inlet System Has A Leak * Exhaust System Has A Leak * Air Inlet Or Exhaust System Has A Restriction * Engine Operated In A Lug Condition * Operating Above Altitude Limits * Defective Turbocharger 1. … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Below Normal Coolant Temperature

NOTE: For operation in cold or very cold temperatures, a winterfront cover or radiator shutters are recommended. Probable Cause(s): * Long Idle Periods * Very Light Loads * Water Temperature Regulator * Air Vent Valve * Fan Clutch Engaged 1. … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Above Normal Coolant Temperature

NOTE: The 3100 HEUI Electronic Control System will activate fault codes to warn of engine overheating. Using an electronic service tool check for logged or active diagnostic codes. Refer to 3100 HEUI Diesel Truck Engine Electronic Troubleshooting SENR6566, Event Codes … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Engine Uses Too Much Lubrication Oil

Probable Cause(s): * Too Much Lubrication Oil In The Engine * Oil Leaks * Oil Temperature Is Too High * Worn Valve Guide Seals * Worn Pistons, Rings Or Cylinder Walls * Failure Of Seal Rings In Turbocharger * Worn … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Engine Has Low Oil Pressure

Probable Cause(s): * Insufficient Oil * Defect In Oil Pressure Gauge Or Sending Unit * Dirty Oil Filter Or Oil Cooler * Diesel Fuel In Lubrication Oil * Oil Pump Has A Defect * Oil Pump Suction Pipe Has A … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Too Much Exhaust Smoke At Normal Operating Temperatures (White/Black Or Blue Smoke)

A. White Smoke (Go to Step 1) Probable Cause(s): * Cold Outside Temperature * Long Idle Periods * Low Quality Fuel * Air In Fuel System * Water In Fuel System * Fuel Pressure Is Low * Air Inlet Heater … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Too Much Exhaust Smoke (Black Or Gray)

Engine Runs Smoothly (Go to Step 1) Probable Cause(s): * Not Enough Air For Combustion * Exhaust System Restriction * Low Quality Fuel * Valve Adjustment Is Not Correct Or Valve Leakage * Defective Unit Injector * Low Injection Actuation … Continue reading

25. July 2017 by sam
Categories: 3126 | Tags: , , , , | 1 comment

3116 and 3126 Truck Engines Problem Coolant In Lubrication Oil

Probable Cause(s): * Failure Of The Oil Cooler Core * Failure Of Cylinder Head Gasket * Failure Of Seal Between Cylinder Head And Sleeve In Unit Injector Bore * Crack Or Defect In Cylinder Head * Crack Or Defect In … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Engine Has Excessive Early Wear

Probable Cause(s): * Dirt In Lubrication Oil * Contaminated Oil * Dirt In The Inlet Air * Fuel Leakage Into Lubrication Oil * Incorrect Lubrication Oil * Incorrect Engine Settings * Incorrect Maintenance Interval For The Desired Application 1. Dirt … Continue reading

25. July 2017 by sam
Categories: 3126 | Tags: , , , , | Leave a comment

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