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Oklahoma Vehicle Inspection FAQ

Oklahoma car & truck inspection FAQ

State Car Emissions Testing & Inspection

With routine car inspections and periodic emissions checks, drivers can be familiarized with any mechanical issues with their cars. In case your vehicle failed to pass the inspection or the vehicle-emissions test, you will definitely know it requires some immediate attention and probably some repair work. Vehicle owners must proceed with the repair or service ASAP because it may endanger the reliability of the vehicle and also lead to significant fines or even an invalidated registration. Therefore, it is always advised to have your vehicle examined by a competent service technician a minimum of every six months to avoid all these hassles. Some frequently asked inquiries on car inspection are described below.

What is On-Board Diagnostics or OBD?

The OBD or On-Board Diagnostics, or OBD II is a standard computer system applied in all automobiles constructed in and after 1996. In other words, all the vehicles made in 1996 and after will have an OBD system in them, which provides information reports on self-diagnosis of the car often used by automotive technicians prior to doing any automobile repair services.

What Are The Most Common Causes Of a Failed Emissions Test?

An emissions test can fail for many reasons because of malfunctioning car elements such as an injector, oxygen sensor, ignition system or even an EVAP system. One of the more typical causes is malfunctioning injectors. Either the injectors or a malfunctioning oxygen sensor can cause a "abundant air-fuel blend" leading to a disappointing emissions test.

If your vehicle has worn-out spark plugs, there is a higher chance that it might be the root cause of a boost in exhaust emissions. This, consequently, can result in a failed emissions test.

Any problem or deficiencies in the EVAP system or evaporative exhaust control system can trigger a trouble in the handling of the gasoline vapor emitted from the vehicle resulting in air pollution.

If your vehicle hasn't undergone routine maintenance and the "check engine" light is brightened on the control panel, your car may fail the emissions test.

What Do They Check for in a Vehicle Inspection?

A licensed examiner conducts a car inspection at state-approved assessment stations only. This is what they will check for:

  • Front lights: front lights evaluation to ensure appropriate operation, no cracked lenses or lamps, lights are the proper color, are identical, and turn signals are operable.
  • Tail lights: Turn signals, marker lights, hazard lights, license plate lights, brake lights, reverse lights are operable, and no damaged taillights
  • Wheels and Tires: to examine tire problems for any indicators of deterioration and if there is a requirement for replacement
  • Mirrors: Make sure no mirrors are broken, broken or missing
  • Safety belt: to assess safety belt condition and make sure they are safely working or need a replacement
  • Brakes: an in-depth brake inspection to ensure proper brake response and if there are any type of brake fluid leakages
  • Horn: make sure the horn is operative
  • Assessment of suspension and shock absorbers

How Long Does A Safety Inspection Take?

Depending on the state, city, and county where the vehicle examinations are conducted, the car safety inspection duration might differ. Nonetheless, for a majority of vehicles, this process generally takes one hour to 90 minutes.

Oklahoma Car Inspection FAQ | Buick GMC Dealership Oklahoma City