A bad positive crankcase ventilation valve causes various symptoms, including ignition of the check engine light. Other symptoms include odd noises from the engine or oil on the air filter element.Know More
An ignited check engine light is an indicator that the driver needs to have further diagnostic tests done on the engine. Checking the engine with a scan tool often returns a P0171 or P0174 code when the PCV valve is bad. These codes indicate the engine is operating with a lean fuel to air ratio, due to the blocked valve. Other potential codes indicate a bad fuel injector or mass-air-flow meter.
The failed valve causes some cars to produce a low moaning noise and others to make a high-pitched whine or whistle. Temporarily blocking the PVC vacuum source and listening for changes in the sound or the elimination of it helps to narrow the cause of the noise.
With some vehicles, a bad PVC valve results in random oil leaks. In cars where the valve uses the carburetor filter as its air source, the bad valve causes oil stains on the filter element.
Sometimes the problem is not with the valve itself, but with the grommet or hose. A split grommet or collapsed hose often mimics problems with the valve itself.Learn more about Pain & Symptoms
The symptoms of amebiasis include abdominal pain, frequent watery bowel movements, loss of appetite, nausea and cramps. However, some people may experience few symptoms or none at all. The symptoms can appear after days or weeks of eating food that contains an amoeba called Entamoeba histolytica.Full Answer >
According to the Better Health Channel, symptoms of an infected wisdom tooth are a reddened, inflamed gum near the wisdom tooth; pain; pus along the gum line; enlarged and sore lymph glands under the jaw, fever; and difficulty in swallowing and opening the mouth. An impacted wisdom tooth or food and bacteria between the wisdom tooth and molar can lead to gum infections and tooth decay.Full Answer >
Carbon monoxide is a colorless gas and cannot be seen; symptoms of carbon monoxide poisoning generally resemble symptoms of the flu and can consist of headache, dizziness, weakness and upset stomach, as well as vomiting, chest pain and confusion. Carbon monoxide poisoning can cause a victim to pass out; a sleeping person may die before experiencing any symptoms.Full Answer >
During menstruation, a woman's body produces a hormone called prostaglandin that causes many menstrual symptoms, including cramps due to the contraction of the uterine muscles, states WebMD. More severe cramping may indicate that a woman's body produces more prostaglandin or that she is particularly sensitive to the hormone.Full Answer >