I have a 1995 Contour 2.0L 4cyl. It recently began running very hot in stop/go traffic. The temp usually runs between the M and the A of Normal in the guage. Now, when I get in stop and go traffic (doesn't seem to matter what the weather is) the temp climbs and if I don't get out of the traffic soon it goes into the red. Any (cheap) ideas?

Thanks