This has probably been brought up 100 times before, but i've tried pretty much everything and can't figure out why my car isn't sitting at the right temperature.

i've just had a new radiator and a new themo put in, not to mention a new cylinder head, cosidering i cracked the old one somehow, but for some reason my car still sits just below the L in Normal, when it has warmed up.. idel is a little rough too..

any suggestions. thanks.

btw, i drive a Ford Falcon GLi 1995

New Thermo??

New thermostat is it, what temperature thermostat have you installed?