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Course Information
Trade & Industrial Education
CNG Conversion/Installation
This course will teach students the steps involved in the CNG conversion of a vehicle, as well as preparation and component installation procedures. Students will determine the correct location of all components, install them, and test them for safety/integrity. Post-conversion testing of the vehicle will confirm acceptable driveability and operation, and ensure proper functioning of emissions control devices.
Deb Kirkpatrick - 918.828.5031
1. Inspect the vehicle for pre-existing conditions that may adversely affect the performance of the vehicle. P-2
2. Document pre-conversion conditions and complete all necessary reports. P-2
3. Prepare vehicle for conversion according to manufacturer's directions. P-3
4. Install fuel supply container with mounting hardware, valving, shielding, fuel level indicator, and emote fill assembly, as needed, using manufacturer's specifications and required local, state and federal regulations. P-1
5. Install pressure relief device (PRD) and venting system. P-1
6. Select and install swage, compression, flare, captive O-ring, NPT, and other fittings using manufacturer's recommended sealants when required. P-1
7. Install gas tight enclosure around valves and fittings, vent to the outside of vehicle as required. P-1
8. Determine routing and protection of fuel line components according to industry standards. P-1
9. Prepare tubing using proper techniques for cutting, deburring, cleaning, and bending. P-1
10. Install tubing, piping, hose, and valves using appropriate chafing protection, mounting hardware, and protective shields, according to industry safety standards. P-1
11. Determine appropriate location and mounting of the regulators; install the regulators using mounting brackets, fuel lock, fittings, starting aids, control valves, cooling lines, and thermostat as required and according to manufacturer's specifications. P-1
12. Install fuel injection/carburetion or other fuel control components according to manufacturer's instructions. P-1
13. Install electrical/electronic components using OEM or manufacturer's wire connections and wiring diagrams, applying all safety precautions. P-1
14. Determine location of electrical components considering safety, serviceability, function, component protection, and esthetics according to manufacturer's specifications (when available). P-1
15. Inspect and test each installed component to ensure it is connected and positioned in a safe and effective manner. P-1
16. Purge and pressurize fuel system and check for system integrity through its maximum working pressure (leak test). P-1
17. Perform system setup procedures according to manufacturer's specifications. P-2
18. Fabricate brackets, shields, and braces according to accepted industry standards. P-2
19. Complete and affix required safety/information labels. P-1
20. Test vehicle for acceptable driveability and operation (on each fuel for dual fuel vehicles). P-3
21. Inspect and ensure that all required emissions control devices are present and functional; confirm that the vehicle emissions meet applicable local, state, and federal requirements. P-1
22. Perform pre and post conversion emissions evaluation. P-3
*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
Career Majors That Sequence This Course
Career Cluster Pathway Career Major
Transportation, Distribution & Logistics Automotive Service Alternative Fuels Technician