Well if you have good flow, correct fluid level, correct operating temp, no blockage or air bubbles, and properly operating air controls, you have good heat. Go back to the beginning and start again. Missing something. Heater hoses are attached correctly? Have the temp checked with a laser gun. 185 or better.
Good hunting and let us know. :)
Tuesday, April 3rd, 2007 AT 9:29 PM