Noticed that the water temp has been taking a while to get to normal temp and the bottom rad hose is cold, so changed thermostat today and it's still the same, went for a 20 minute drive and it came up to temp, left it idling for another 10 minutes and the temp went down to about 1\4, and didn't rise. Bottom rad hose still cold. I have no idea what it could be. Do these cars normally take a while to get up to temp and the stat to open?