TUBE ASSEM. 4V7085 - Caterpillar

Probable Causes
Vehicle operation
Environmental conditions
Engine load and vehicle aerodynamics
Fuel quality
Air inlet system or exhaust systemRecommended Actions
Check Vehicle Operation
Use the Caterpillar Electronic Technician to check the histograms. Look for high values for these items:
Engine speed
Vehicle speedHigh engine speeds and high vehicle speeds can cause excessive fuel consumption.Check the Environmental Conditions
High winds and excessive moisture (snow) can adversely affect fuel consumption.Check the Loads and Aerodynamics
Heavy loads and poor aerodynamics adversely affect fuel consumption.Check the Fuel Quality
The grade of the fuel affects the rate of fuel consumption. Refer to the engine's Operation and Maintenance Manual for additional information.Check the Air Inlet System and the Exhaust System
Check the air inlet system for restrictions and for leakage. Check the exhaust system for restrictions and for leakage. Refer to Systems Operation/Testing and Adjusting, "Air Inlet and Exhaust System".