I have replaced the water pump, thermostat 195, and had the rad tanked. It runs normal around town, but in heavy stop and go it gets very close to the red. I even changed the temp sending unit. My question is, no the fans turn on from the sending unit or is there a seperate sending unit for them? They do turn on but seem to turn on to late on do not seem to run very fast. Any help on this would be great. I'm about ready to replace the water pump again and give that a try before I just take the thing into Pontiac. The anitifreeze also in normal and has nver had anything in it except the red stuff.

Thanks!