i've been keeping an eye on the white smoke and my coolant level. the smoke is only there for short amounts of time and not very often, but my coolant stays the same. my problem is when i'm driving the car has short second bursts of no power. it will also die without warning, not even while accelerating, but it still can do it while i'm accelerating. it normall shuts off, then backfires, then i can turn it back on for about 10-20 seconds. i've had to pushstart it on 53 (busse if you're farmilier with the elk grove area). i've replaced the fuel filter thinking there might be too much crap in it and it's not letting fuel through. i've also done the seafoam as stated earlier. my last oil and spark plug change was a little over 700 miles ago, it was doing this before the the oil & spark plug change. i've looked on other forums and some people have had this problem and they said it was either the fuel injectors or the coil packs. what are your ideas on this?