5 key reasons your vehicle will fail a smog check.
The little things that many underestimate are key reasons why your vehicle will fail a smog check, below are
1. Dead Engine Battery.
A Dead engine battery or battery replacement and a jumpstart are the most common reasons. Vehicle computer stores OBD2 monitor data for the smog check. It can take an average of 200 driving miles (living in Escondido or San Diego won’t take long to reach 200 miles.) to obtain the required data to complete the smog test.
2. Leaking Gas Cap.
Cracked, worn out, or broken sealed gas caps can cause the smog check to fail due to the leak and increase in pollution. This is a fast and simple fix.
3. Dirty Air Filter.
Air filters are recommended on being replaced every third oil change or 8,000 to 12,000 miles. Changing out an air filter can be quick and easy and done in a matter of minutes on most vehicles.
4. Bad Ignition System.
Old and worn out or defective spark plugs and cables lead to bad ignition which can release more hydrocarbons lead to an increase in the hydrocarbon numbers on the smog check, ultimately can cause the vehicle to fail.
5. EVAP (Evaporative Emission Control).
This system may sound complex and expensive but well break it down, the EVAP prevents any vehicle’s vapors from leaking out of the engine and into the air. Old, broken vacuum hoses and PVC valves are the main reasons for EVAP failure. The damaged vacuum lines release raw fuel vapors or bad vapors into the atmosphere.
Hopefully, these tips can help you on your next smog check or help you troubleshoot any smog questions, Here at EP Smog check Escondido we strive to do our best, If you’re looking for a licensed smog check technician that’s trusted by thousands of happy customers, look no further than, EP Smog Check Escondido, we offer automotive smog repair and great customer service. Have any smog questions or recently failed the smog check and need guidance. Give us a call and we would be glad to help you with the smog check.