Engine Performance problem
2003 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 112000 miles
3100 3.1 V6 Grand Prix, great car, very reliable has regular maintenance done. Within the past 3 months I have noticed a loss of power when you go to accelerate. The RPMs go up and it takes awhile for it to shift into the next gear. This past month I have noticed that when it does shift it then almost seems to miss or sputter and has very little power until you really give it the gas and then it seems to come out of it. It starts great and idels well. I have had new spark plugs and wires put on and last week had the transmission flushed and the filter changed and nothing has changed. What should be the next step?
Tuesday, July 14th, 2009 AT 11:58 AM