[TR] head gasket/idle miss

[Randall]

> wondered if head gasket
> leak could be the  reason for a miss at idle.

Unlikely, IMO.  A little bit of water won't make it misfire, and enough to
cause a problem would quickly be noticed due to overheating.  

>   I don't see steam in exhaust but do see very small droplets
> of
> water on inside windshield and mirror...............thinking it might be
> from
> exhaust blowing back?

Worth noting that exhaust normally contains a fair amount of water, as it's
produced by the combustion process.  Look at almost any car soon after it's
been started from cold, and you'll see water dripping from the tailpipe.
Once the exhaust system gets hot, though, the water comes out as invisible
vapor.

> Little mechanical experience here and just interested in others
> opinion.

If you really want to know for certain, there is a simple test that any
radiator shop can do for you.  Takes only a few minutes, and my shop charged
me less than $20.

But IMO there are lots of more likely causes.

Randall