the guage won't reflect overheating if it isn't immersed in hot coolant.. so
if your low, you never know about the hot spots your getting..
I know the first sign that I blew my head gasket was the temp guage going
down while driving, after reaching nomal..
pop your radiator cap off,top it up, and crank the engine, if you get a
coolant volcano, that will answer your question for sure..

foctard
determine cause of miss
what cylinder
is the plug washed clean?
or is it a bad coil or wire
have you been losing coolant
need more info
foctard
hurc ast

well, my first idea is that if you are talking about a chevy, you are in the
wrong newsgroup. but since you posted in a ford newsgroup, we can assume you
have a ford. now since we are not mind readers, how about some vehicle
info???