I have a 2001 Impala with a 3.4
EVery time hot or cold the car is hard to start it cranks long and once it does start it runs very rough for about 30 seconds, every now and then i will be stopped at a light and it idles very rough but smooths out once i take off. The problem has been going on for about 4 months now. SES light is on with multiple misfire codes. When it first started i replaced the plugs and wires but didnt help. I just replaced the plugs (again because the electrodes were gone) 3 coil packs and had the injectors flushed. I replaced the fuel pressure regulator about a year ago due to an external leak. Now im stumped!
EVery time hot or cold the car is hard to start it cranks long and once it does start it runs very rough for about 30 seconds, every now and then i will be stopped at a light and it idles very rough but smooths out once i take off. The problem has been going on for about 4 months now. SES light is on with multiple misfire codes. When it first started i replaced the plugs and wires but didnt help. I just replaced the plugs (again because the electrodes were gone) 3 coil packs and had the injectors flushed. I replaced the fuel pressure regulator about a year ago due to an external leak. Now im stumped!
Oct 19, 2008 at 7:17 PM