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D.J. 08-03-2017 06:23 PM
94 12valve Cummins s
 
I have a 94 12valve Cummins. I just replaced the injectors in it with DAP 7X12 and now at or around 1,000rpm the engine shakes and bucks around, and when the torque converter locks in over drive around 45 it starts to buck and I have to let off of it and then ease back into the throttle to get the bucking to go away. And if I just give it a bunch of gas when it starts then it just gets worse. And it does this in every gear and any speed if the truck is running around 1000rpm. Fuel pressure is normal and if it is finally running ok in over drive if I mash the gas it feels as if the trans/axle is going to bounce right out of the truck

D.J. 08-20-2017 01:12 AM
Originally Posted by D.J. (Post 1134596)
I have a 94 12valve Cummins. I just replaced the injectors in it with DAP 7X12 and now at or around 1,000rpm the engine shakes and bucks around, and when the torque converter locks in over drive around 45 it starts to buck and I have to let off of it and then ease back into the throttle to get the bucking to go away. And if I just give it a bunch of gas when it starts then it just gets worse. And it does this in every gear and any speed if the truck is running around 1000rpm. Fuel pressure is normal and if it is finally running ok in over drive if I mash the gas it feels as if the trans/axle is going to bounce right out of the truck

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