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Can you tell me what the code p0446 on a Chevy Impala means?
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★ Top Answer
The diagnostic trouble code p0446 on the Chevy Impala indicates a malfunction in the Evaporative System Vent Control Circuit. The estimated price range for replacing spark plugs in a Chevrolet Impala is $171 to $200, with labor costs falling between $104 and $128 and parts between $78 and $82. Various engine issues may arise, such as oil leaks that should be promptly addressed, loose gaskets that need immediate tightening, spark plug misfires that can cause engine problems, excessive oil consumption necessitating premature oil changes, and the critical issue of engine overheating, which can potentially result in fires and vehicle explosions.
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It's probable that the Vent Solenoid is faulty. In the Impala, it can be found around the gas cap region behind the cover in the wheel well. To reach it, you'll need to take off the back tire and the wheel well cover. I've observed these vent solenoids breaking open, with corrosion on the electrical coil that shuts it. Typically, you can find a replacement for less than $40. Another issue is dust getting into the sponge filter, causing improper venting.
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A Code P0446 on your Chevy Impala means there's a problem with the voltage drop in the EVAP Vent Valve circuit.
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