Need some serious advice please.
Apologies for a massive post but wanted to be as thorough as possible.
Driving along normally this afternoon, joined a dual carriageway and gave it a bit of right foot. Suddenly, a load of what looked like white smoke from the exhaust. It went away and everything seemed normal. Carried on driving for about 1.5 miles to the end of the carriageway and as I was slowing down another puff of white smoke from the back and also the front?
Kept driving, now really conscious of everything trying to figure out what happened and then came to some lights, noticed my temp gauge rapidly rising. It got to about three quarters up before I decided to pull over and kill the engine.
It was now apparent, that it was steam and not smoke.
Popped bonnet, coolant everywhere but couldn't tell where from exactly... Got someone to drop off a load of water, filled up tank but water just came straight out!
Couldn't tow the car as the towing eye was missing so eventually had to shell out £108 for Green Flag to come out.
Two hours later, the guy arrives and quickly spots that a hose near the top,of the engine on the right hand side as you're looking at it had blown off its connector because someone hadn't attached the hose clip at all (so could've blown off anytime).
Anyway, he couldn't fix it because he would've had to remove the air filter box etc to get access which he couldn't do. He secured the hose back on with a cable tie, filled it up and the car started fine with no coolant loss as far as I could tell as a temporary fix so I could do it myself tomorrow or whatever.
I drove home fine, the temp gauge was much lower than normal but I turned on the heater which just blew out cold air for ages then warmed up and the gauge rose to its normal point (just above halfway).
What I would like to know is whether that short drive between the puff of "smoke" and killing the engine off is likely to have caused any damage?
As I say, it drove perfectly and the temp gauge wasn't even at max when I shut it down....
I'll be sorting out that hose clip in the morning - is there anything Obvious that I can check to see if it's knackered?
Any assistance would be appreciated!