""jay & dana"" <jay&dana@telus.net> wrote in message
news:017501c37264$1deeef40$2e5535d1@a4a91192...
>
> I'm planning on buying a used car for my wife and would like to ask those
of
> you out there that know more than I a question. The engine is a 4 cyl, 5
> spd with air. When we took it out for a test drive everything ran great
but
> I'm curious about the fact that at idle when you push the button to
activate
> the rear window defrosters the idle would drop 100-150 RPM. When we turn
on
> the air conditioning at idle it would only drop 50 RPM or so. I've never
> owned a vehicle with air conditioning so I don't know if that little drop
is
> normal or not. But what gets me is the 100-150RPM drop when you turn the
> rear defrosters on. Should this be acceptable, or any ideas on what could
> be causing this fluctuation? By the way it's a 95 Mercury Mystique GS
2.0L
> (I know, but she likes it, it's not a ricer) :-)
>
battery, alternator problem is my guess.
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:57 EST