Hello all you awesome people! Well, long story short, 05 pacifica, 3.5 started feeling like it wanted to stall under light acceleration. For example, lightly accelerating from stand still will cause car to buckle until I press harder on gas pedal. Now, once I'm up to speed, 50km and I'm cruising along, naturally there doesn't need to be much pressure on the gas pedal, so the light acceleration causes it to buckle, almost a faint jerkiness, until I either stop touching the pedal or press harder......

So far, no code.
Took to Chrysler, they said no code, no can do..... Said they road tested felt nothing...... Extremely frustrating since it seemed worse when I picked it up. Researched on this forum and have replaced upper and lower 02 sensors. Still have buckling under light acceleration. To avoid the near stall at every intersection I'm forced to floor it..... I seem defeated at this point.

Any clues? Please and thank you.

 

Idle air controller? I have not worked with mine as yet, but have on other vehicles and have had some luck removing it and cleaning it and the ports it opens and closes. I am starting to sense a bit of the same symptoms on my '05. I'll have to check it out too.