Why does my 3.0 liter motor run rough when I accelerate and blows blue smoke?
More than likely it is a blown headgasket. Antifreeze leaking through the head and being burned in the cylinders can cause blue smoke and poor performance. answer antifreeze burns black oil burns blue more likely to have a stuck or broken piston ring get a compression test doen on your engine could also have worn valve stem seals, allowing oil to run down the valve stems and into the conustion chamber blown headgasket will cause overheating and loss of coolant
What causes a 2002 jeep liberty to idle rough when coming to a stop and the oil light coming on sometimes and the oil light goes out when you accelerate?
The idle could be a number of things. A basic tune up might be needed. They are also common to get minor vacuum leaks that will cause it to idle rough. The only light is a bad thing. It means you do not have enough oil in your motor. So when you are stoppong it is sloshing away from then sensor and you accelerate it gets back to it. Check your oil level and add…