Symptom Tree t125 Printable Version This is symptom tree t125 Cause Correction Variable speed (VS) speed adjusting screw has missing or damaged washers Remove the jam…
Symptom Tree t122 Printable Version This is symptom tree t122 Cause Correction Engine is operating for extended periods under light or no-load conditions (slobbering) Review the…
Symptom Tree t120 Printable Version This is symptom tree t120 Cause Correction STC system malfunction Check the electrical STC oil control valve and circuit. Refer to…
Symptom Tree t118-011 Printable Version This is symptom tree t118-011 Cause Correction Engine block heater is malfunctioning (if equipped) Check the electrical sources and wiring to…
Symptom Tree t118-155 Printable Version This is symptom tree t118-155 Cause Correction Electronic fault codes active or high counts of inactive fault codes Refer to Section…
Symptom Tree t116-011 Printable Version This is symptom tree t116-011 Cause Correction Intake manifold pressure (boost) is below specification Refer to the Intake Manifold Pressure (Boost)…
Symptom Tree t116-155 Printable Version This is symptom tree t116-155 Cause Correction Electronic fault codes active or high counts of inactive fault codes Refer to Section…
Symptom Tree t109 Printable Version This is symptom tree t109 Cause Correction Air in the fuel system Check for air in the fuel system. Refer to…
Symptom Tree t108 Printable Version This is symptom tree t108 Cause Correction Bulk coolant supply is contaminated Check the bulk coolant supply. Drain the coolant and…
Symptom Tree t107 Printable Version This is symptom tree t107 Cause Correction Electronic fault codes active or high counts of inactive fault codes Refer to Section…