Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Emission Control Abbreviations: "C"
- C-4
-
Computer Controlled Catalytic Converter
- CAC
-
Charge Air Cooler
- CAS
-
Clean Air System
- CB
-
Crankcase Breather
- CB-VC
-
Crankcase Breather-Vapor Canister
- CBPS
-
Coasting By-Pass System
- CBVC
-
Crankcase Breather Vapor Canister
- CCIEV
-
Coolant Controlled Idle Enrichment Valve
- CCO
-
Computerized Engine Controls
- CCS
-
Controlled Combustion System
- CCV
-
Closed Crankcase Ventilation
- CD-REGVLV
-
Crankcase Depression Regulator Valve
- CDRV
-
Crankcase Depression Relief Valve
- CEAB
-
Cold Engine Air Bleed
- CEAB-TVS
-
CEAB Thermal Vacuum Switch
- CEAB-TVV
-
CEAB Thermal Vacuum Valve
- CEC
-
Computerized Engine Controls
- CESS
-
Cold Engine Sensor Switch
- CETS
-
Cold Engine Temperature Switch
- CFI
-
Continuous Fuel Injection
- CMH
-
Cold Mixture Heater
- CNG
-
Compressed Natural Gas
- CO
-
Carbon Monoxide
- CO2
-
Carbon Dioxide
- CPI
-
Central Port Injection
- CRV
-
Coasting Richer Valve
- CSI
-
Central Sequential Injection
- CTAVS
-
Cold Temperature Activated Vacuum System
- CTOX
-
Continous Trap Oxidizer
- CVOT
-
Crankcase Ventilation Orifice Tube
- CVOT-CKV
-
Crankcase Ventilation Orifice Tube Check Valve
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.