Bad pressure regulator symptoms that you could be experiencing are a no start, hard start, rough idle, a check engine light, fuel in the fuel pressure regulator vacuum line, failed emissions test, poor engine performance, and poor gas mileage. Some of the engine codes you might retrieve are P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0172.

Having starter issues? This article will help you learn 5 BAD STARTER symptoms. Some of the signs of a bad starter may be a grinding noise while cranking, no crank, no start, slow crank, one-click sound, and your starter running but not the engine.

Have you been driving with a bad purge valve? This article will help you learn 5 bad purge valve symptoms and trouble codes.