So I had my motor replaced on my 19 2.7 and now the shop guys are telling me that its all done turns on but after about 20min once it warms up it starts to run like crap and when they run the diagnostic scanner it keeps showing a misfire on 1, 2 & 4 cylinder they have changed the coils from and still the same not sure if they have changed the plugs yet to see if that makes a difference. But has anyone else ran into this type of issue I mean besides going through everything and making sure all connections are correct would a vacuum house in the wrong spot or leak cause a misfire like this ?