As far as the hard start, check the fuel pump pressure to make sure it is within the manufacturer's specs. Also, pay attention to the fuel pressure drop off to see if there is a pressure leak. Directions are on our homepage under the DIY section. There is both directions and a video. As far as the vibration, check for vacuum leaks. If the check engine light is on, have the computer scanned. Also, check the idle air control valve.
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Saturday, March 30th, 2013 AT 3:38 AM