Rep Power: 0

I took my car in to see why my heater was blowing hot then cold. The mechanic checked the coolant level right away (which was ok) then proceeded to test drive it. Unfortunately, he never tightened the cap and coolant spewed everywhere. He did flush it, refill it and made sure the cap was properly tightened. I guess my question is... should there still be steam billowing out from under my hood 4 days later? I do know quite a bit did spew everywhere but im not thoroughly convinced its residual coolant that is still burning off.

 
Rep Power: 223

you should probably pop the hood open and figure out where that's coming from before you lose all of your coolant and overheat the engine

 
Rep Power: 119

If it was my car, I'd check the coolant, and if it's full and not dripping, I'd drive it and watch the temp. Coolant got all over the radiator, and it can take quite a while for all the coolant residue to burn off from between all the fins. Good look!

 
Rep Power: 134

Suggest you go to another mechanic. 3 strikes you're out - your oil leak woes, the loud exhaust "just sounds like a Honda" and now this radiator cap loose business...

 
Rep Power: 211

Agree with D17... coolant is viscous and can take time (a few days depending on amount of drive time per day) to fully burn off. Going back to the heater blowing hot and cold: could be a blend door or a head gasket issue. Any loss of coolant in radiator and/or coolant gain in the reservoir?