HITCH ASSEM. (Lower) 5K1331 - Caterpillar

Measure the Exhaust Temperature
Table 1
Required Tools
Part Number Part Name Qty
164-3310 Laser Infrared Thermometer 1 When the engine runs at low idle, the temperature of an exhaust manifold port can indicate the condition of a fuel injection nozzle.A low temperature indicates that no fuel is flowing to the cylinder. An inoperative fuel injection nozzle or a problem with the fuel injection pump could cause this low temperature.A very high temperature can indicate that too much fuel is flowing to the cylinder. A malfunctioning fuel injection nozzle could cause this very high temperature.Use the 164-3310 Laser Infrared Thermometer to check this exhaust temperature at the exhaust outlet for each cylinder.Compare the temperature readings for each exhaust outlet. Investigate any difference in the temperature readings.