Thread: Several Problems

I just had the head gasket and LIM replaced because my car was burning coolant and putting out a ton of white smoke.
When I got that done, I also dumped the radiator and oil and got new fluids. I also had the water pump replaced.

It's still putting out white smoke now, just not nearly as much. The car also acts sluggish when driven, it Vibrates alot.
I had it diagnosed and the machine read a misfire in my engine.

Do you think If I replace the spark plugs it could stop these problems? Also, I have only driven it about 2 miles since I got the head replaced.
Is there a chance there is still coolant left in the engine and that I just need to drive it more to burn it all off?

My temp gauge also jumps around, goes from super hot to regular within a few seconds randomly up and down. If I stop and feel the engine its totally fine, the radiator cap feels cold to the touch still even. What is the problem with that?

Thanks!