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P0442: EVAP System Leak Detected (Small Leak)

RepairSmith

A Failed Emissions Test or Smoke Test One of the main indicators of the P0442 code is a failed emission test or a smoke test. A smoke test uses a smoke machine to find hard-to-detect fuel vapor leaks. So, it’s best to contact a mechanic if your vehicle fails an emissions test.

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Purge Valve Replacement: Why It’s Important + Costs Involved

RepairSmith

A failed emissions test: If the canister purge valve allows excessive vapor to escape from the charcoal canister, your emissions will likely exceed the EPA (Environmental Protection Agency) standard. After assessing a faulty purge valve, the mechanic may replace it. Want to confirm you have a faulty canister purge valve?

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Why You Should Never Skip Exhaust System Repairs

RB Auto Service

Finally, a failed emissions test could attribute to a malfunctioning component in your vehicle’s exhaust system; it needs to be inspected by a professional mechanic immediately. In that case, something is wrong with the muffler or catalytic converter and needs repair soon.

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Air Quality and Junk Cars: What You Should Know About California’s Ongoing Struggle

The Mechanic Doctor

The Mechanic Doctor - Resources for Amateur and Pro Auto Mechanics California has some of the most strict environmental regulations in the country. California’s Air Quality and Its Efforts To Reduce Vehicle Emissions Unfortunately, California is world-famous for its smog and poor air quality.

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Deciphering An Engine Misfire Code

Tomorrow's Technician

The cause of the misfire could be a fuel, spark or mechanical issue. Unfortunately, a misfire also will cause a considerable increase in hydrocarbon (HC) emissions, which can cause a vehicle to fail an emissions test. The spark plug can have damaged electrodes due to a combustion incident or mechanical damage.

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What's Covered in a PA State Inspection?

Girls Auto Clinic

In my auto airhead days, I would cross my fingers at every inspection, just praying the mechanic or service advisor told me I was all good and only needed to pay $65 for the job. For the emission test, we hook up your vehicle to a machine that reads the Powertrain Control Module (PCM) or the main computer to your car.

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Can You Drive with an EVAP Leak + How to Spot One?

RepairSmith

The loss of fuel vapor also affects your car’s fuel efficiency , resulting in reduced mileage and increased emissions. This could cause your vehicle to fail an emissions test and damage your catalytic converter , resulting in costly repairs and hefty fines. But how do you identify an EVAP leak? Let’s find out.