First, I'm concerned about the blue smoke. If the engine is running rough, have him recheck to make sure the wires are on the correct cylenders. Next, check the catalytic converter. See if there is a good bit of pressure from the exhaust and when the engine is hot, look at the converter to see if it is glowing red. As far as vacuum leaks, there are hoses that distribute vacuum from the engine to other components. Basically, look for damaged, broken, or disconnected hoses that may be causing a leak. If the engine is running, you may hear a hissing sound.
Monday, June 14th, 2010 AT 1:45 PM