I took my 99 Sunfire in to get my oil changed, my tire pressure
> adjusted and my coolant flushed & refilled. After the coolant was
> refilled, one of my spark plugs shot out of the car and exploded.
Spark plugs can not explode.
I think it did this becuase the mechanic didn?t have my car running when
> he drained the coolant
If he had drained to coolant with the engine running, you'd have much bigger problems than you have now.
and after he refilled it and started the engine
> to circulate it, an air bubble caused the explosion.
Nope. Nothing there that could generate enough pressure to cause this supposed explosion.
I am now being charged extra for new spark plugs
> (because they claim they can?t replace only one)
> and new wires.
It's your car, you put the miles on it. If I'm wrong, why then did you request the oil change, coolant flush and tire pressure check? Odds are that your spark plugs are worn out and the wires need attention also.
The explosion actually stripped the
> inside of where you screw the spark plug in so I am also being charged
> for a Healy Spring Kit to try and get the spark plug to stay secure.
You have it backwards. The stripped threads allowed the plug to be ejected. Since there is no reason for them to go anywhere near the spark plugs for the other services, it is your responsibility to pay for the additional needed services and parts.
If that doesn?t work, the whole engine head has to be replaces. Either
> way, I don?t think I should have to pay for anything besides the cost
> of what I originally brought the car in for.
And by the same token, the repair shop shouldn't have to pay to repair a condition that obviously existed before you brought the vehicle to them. IOWs, they'd be totally justified in pushing it out the door and leaving you to your own devices WRT what to do next.
The exploding spark plug
> wouldn?t have happened had I not brought the car there in the first > place.
Hogwash. You have no way of knowing that. By your logic, it wouldn't have happened if the sun hadn't come up that morning in the first place.
Is it justified if I tell them that I will not pay for anything
> besides the oil change, coolant flush and tire check?
No, not in the least. depending on state law, they would then be completely justified in holding the vehicle until the debt for repairs was satisfied, and you wouldn't have a leg to stand on in court. You should be thankful that it chose to happen where it did, there is no better place for a breakdown to happen than while it's at the repair shop. Luck saved you having to pay for a tow truck.