Engine Performance problem
1996 Chevy Blazer 6 cyl Two Wheel Drive Automatic 180000 miles

When my blazer is cold (not up to 195 degree operating temp) it will misfire when I am accelerating. It does it the worst at about 2500 rpm just before it shifts, but I have to let off the gas pedal in order for it to shift. If I keep my foot on the gas while it is misfiring, it will just keep jumping around and the rpms fluctuate up and down. While I am on the highway in overdrive, it seems like the blazer is surging and I can see the rpms jumping back and forth from 2000 to 2500. Under hard acceleration, the blazer also surges in the same way as at highway speeds, but will shift fine. After I drive about fifteen minutes, all the misfiring stops. what could this be?

It's amazing how I donate and still don't get an answer to my question. This place is a joke. Never will I use 2carpros.com!!! They have stolen my money so far.

Oh yea...great place. I guess you have to donate 100dollars or more to get an answer. you all suck. especially those "pros" ......how exactly do I get the money back that I donated because I do remember when I donated that they said I get my money back if I am not satisfied. Well I am not satisfied. Once again, this place is a joke.

almost two months go by and i'm still the only person who replies to this question. 2carpros.com still sucks. I hope someone can prove me wrong.