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Random misfire light acceleration on the interstate.

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Vehicle came in and i replaced the motor mounts due to them leaking fluid (fluid filled mounts). 

test drove the vehicle and felt a slight surge on the interstate under light throttle. check with scanner and almost all the cylinders (on both banks) had misfire counts. its just odd because i can get it to misfire under load or power braking it. (maybe 1 or 2 random counts when doing that but not as bad as under acceleration) 

Did find some issue with the torque converters. vehicle has about 60k on the motor thinking i should start with some spark plugs. Anyone ran into this issue? 

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