As far as the fuel pump, it could be weak. Most parts stores will lend or rent you a gauge if you decide to check it. As far as the spark knock, I would start by checking the knock sensor. Also, make sure there are no vacuum leaks and the catylatic converter isn't plugged. Has the check engine light ever come on?
Let me know what you find.
Monday, March 1st, 2010 AT 10:44 AM