I have a 93 S-10 Blazer, v.6, Vortec that hasn't been running right since we had the Fuel Pump changed out. Most of the time when I first start it, it doesn't want to start, sometimes it doesn't even want to crank over the first few tries. If remove the spark plug wire, it'll start most of the time but die after being started. I'll put the spark plug back on and it'll start right up. Now it's getting less easy to start it. The coil pack has been changed recently. Fuel pump, fuel filter, used ignition module, used distributor and distributor cap. After I put the spark plug wire back on, it'll start right up but die. If I let it warm up for about 5 minutes it seems to run fine.
If I don't let it warm up it'll buck and jerk and sputter and get to the point where it sounds like it's going to die going down the road. I had a diagnostic code using the manual DLC check. Returned 33, found the O2 sensor connector was coming loose. I bought an 02 sensor, but haven't had any luck in replacing it, but my engine light is not coming on anymore. What do you think could be the cause?
If I don't let it warm up it'll buck and jerk and sputter and get to the point where it sounds like it's going to die going down the road. I had a diagnostic code using the manual DLC check. Returned 33, found the O2 sensor connector was coming loose. I bought an 02 sensor, but haven't had any luck in replacing it, but my engine light is not coming on anymore. What do you think could be the cause?
Apr 23, 2008 at 11:47 AM