[simjack]

Thank you all very much. I checked the plugs and plug wires several times, daytime and at night. I did not find anything wrong. The bumping got worse and worse. I decided to change plugs and wires anyway. I found they are priced from $30.00 for all, to over $100.00. I put the $30.00 wires and plugs in and the bumping seems to be gone. I have driven over 200 miles and it seems ok. I will probably clean the injectors and throttle body and anything else that might prevent future problems. Again I thank everyone for your time and imformation in dealing with my problem.
Thanks
William