Engine Performance problem
2004 Chevy Silverado V8 Four Wheel Drive Automatic 100460 miles
I was getting on the hiway and noticed a slight loss of power and acceleration unless I floored it then it was fine. When I stopped at the off ramp light it would not idle on its own. I can push the gas and it feels smooth over 2000 rpms. So ichanged the maf sensor, spark plugs, wires and even the catalytic converters. Still runs rough at low rpm and wont idle at all. But will start right back up. Can you help me. My check engine light is on and get codes P0300 and P0101. A garage checked it and said it was that cats. But it wasnt.
Monday, April 7th, 2008 AT 7:53 PM