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Course Information
Trade & Industrial Education
TI01634
CNG Diagnosis and Repair
70.00
Students in this course will interpret and verify customer complaints pertaining to CNG driveability problems and determine needed repairs. They will also learn to diagnose and repair supplemental on-board computer systems, as well as CNG fuel storage/control components and delivery systems.
Deb Kirkpatrick - 918.828.5031
none
1. Interpret and verify complaint pertaining to CNG supplemental systems; determine needed repairs. P-2
2. Analyze symptoms and perform diagnostic procedures on vehicles with supplemental on-board diagnostic computer support systems. P-2
3. Diagnose and repair no starting, hard starting, engine misfire, poor driveability, power loss, poor mileage, and emissions problems on vehicle's OEM and supplemental sensors (e.g., manifold skin temperature, intake air temperature, natural gas tank temperature). P-2
4. Diagnose and repair no-starting, hard starting, engine misfire, poor driveability, power loss, poor mileage, and emissions problems on vehicles with supplemental computer support systems (e.g., timing modification devices, ignition interrupt). P-2
5. Diagnose and repair intermittent or complete failure of electric, electronic or mechanical devices (e.g., hour meters, fuel level indicators, fuel selection devices). P-2
6. Interpret and verify complaint pertaining to CNG fuel storage and delivery; determine needed repairs. P-2
7. Check all fuel system components to include fuel lock-off, valves, solenoids, manual shutoff, connections, fittings, hoses, and tubing for leaks, wear, installation and proper operation; repair or replace as needed. P-1
8. Diagnose the cause of abnormal fuel flow through fuel carrying component. P-2
9. Diagnose the cause of fuel odor or fuel loss by inspecting or testing the fuel supply system components such as valves, fuel supply container, pressure relief device (PRD), tubing and hoses; repair or replace as needed. P-2
10. Diagnose the cause of inaccurate fuel level indicator reading; service, adjust, repair or replace as needed. P-2
11. Interpret and verify complaint pertaining to CNG alternative fuel management; determine needed repairs. P-2
12. Diagnose hot or cold no-starting, hard starting, poor driveability, incorrect idle speed, poor idle, flooding, hesitation, surging, engine misfire, power loss, stalling, poor mileage, and lean or rich mixture problems on vehicles with variable or fixed venturi type fuel systems; determine needed repairs. P-2
13. Diagnose hot or cold no-starting, hard starting, poor driveability, incorrect idle speed, poor idle, flooding, hesitation, surging, engine misfire, power loss, stalling, poor mileage, and lean or rich mixture problems on vehicles with fumigation or injection type fuel systems; determine needed repairs. P-2
14. Inspect and test cold enrichment system components; adjust or replace as needed. P-2
15. Inspect and test fuel injectors; service or replace as needed. P-2
16. Inspect and test vacuum and electrical components and connections of fuel system; repair or replace as needed. P-3
17. Perform diagnostic procedures on vehicles with on-board computer/electronic fuel system support. P-2
*Objectives from ASE task list
Classroom discussion and participation, homework/written assignments, performance skill demonstrations, oral and written quizzes and tests, student projects and/or portfolios.
Automotive Service Excellence (ASE) alignment
National Alternative Fuels Training Consortium (NAFTC) Curriculum
No
Yes
Yes
No
Career Majors That Sequence This Course
Career Cluster Pathway Career Major
Transportation, Distribution & Logistics Automotive Service Alternative Fuels Technician