GenVibe - Community for Pontiac Vibe Enthusiasts

My 2003 Vibe GT (90000mi) check engine light came on tonite....my OBDII scanner said "P0128" which is "coolant temp below thermostat regulating temp". The car drives fine, runs smooth, coolant/oil levels ok, air filter clean, etc. All other gauges on the dash read fine. Is this a thermostat problem, or a sensor problem or both? Anyone else have this type of problem or OBDII code? The gas cap is tight too. I just had the antifreeze changed about six months ago (roughly about 12,000 miles ago) by a reputable (one I trust) dealer. Any suggestions? Thanks in advance and you can also email me at dhatch@myvine.com

glad to see you still got the vibe (You know you can post here more often than every other year )johnsoax had a similar problem, replaced the thermostat, I think that fixed it for himhttp://forums.genvibe.com/zerothread?id=16307

thanks for the info....I cleared the code and will keep an eye on it....if the cel comes on again I'll replace the thermostat.....