Hopefully someone here can help me, im new to this forum.


I have a 1991 caprice wagon that will idle fine but when driving at a low idle or going down hill while having the gas pedal down just a bit the car will jump/jerk until you let off the gas or speed up. I have replaced the cap, rotor, plugs & wires and it still acts up. when accelerating speed it doesn't act up. the check engine light hasn't came on either it has a 305 in it with new injectors as well. next step will be putting the old ones back in to see if it helps.


if you need anymore info please let me know I will do my best.