okay, i come back from vacation, start up the car (1992 400e). works fine the first time. smooth.

the next time, it is SUPER rough; bucking, hic-upping, worst on acceleration at low speed/stop. stalls out a couple times when shifting into drive.

it has now done this intermittently since. sometimes its worse than others. at worst the car in un-drivable. some days it goes great no problem. others it does this. if i stop for twenty minutes or so, it usually "resets" and runs smooth. just turning the key on and off does not help. seems perhaps worse when its been sitting out in the heat, but it can do it from cold. One time it was so bad, i gave it gas to get going and a think i heard a thump thump from the engine, like perhaps a backfire through the air intake?

the car has never done anything close to this before. its been smooth as glass.

i cant figure out what would cause this, but only sometimes. i guess it must be electric/electronic. but really do not know

anyway, its off to the mechanic tomorrow but any suggestions or ideas would help.

__________________
Christopher

400e >> 1992 >> 196k miles
Black Pearl Metallic/Grey Interior