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Rio5

Even though you did disconnect the battery, thus preventing any "external" current flow overnight, you still should check for parasitic current draw from the vehicle's electrical system, that is a current flow of (roughly) 50 or more milliamps when the...

Hello, thank you for writing in. The cold weather (https://www.yourmechanic.com/article/how-to-start-a-car-in-cold-weather) is a hard battle to win. There are a few things you can do to help prevent the cold from effecting the engine so much when it drops that low....

The EVAP purge valve might be stuck open. Is so, that will throw off the air fuel ratio enough to cause the problem you are describing. The purge valve can be tested, just request EVAP system testing - purge valve...

Your car's engine intake system has something called a mass air flow sensor that monitors air intake as it is mixed with fuel prior to being injected into the motor. When this fails, this can cause an imbalanced air/fuel load...