heater issues

Okay I have a 2007 doublecab 4wd with 64k miles. Bought it last July used and the heater will not work well at all on high. I noticed this when the temperature has got below 30. It works okay on the 3 other speeds. I took it to get it fixed the guy says it has a service bulletin on it which might also be a recall. I went to Toyota and no recall. Anyone else having this issue or know how to fix it? Oh yeah it does work on high when the temp knob is turned to about 3/4 way but no heat. You can hear the vent closing when turning the temp knob past 3/4.

 

no one having this problem?

 

mine started doing that today no heat at all postions, don't really know what the problem is

 

need to look up tsb 0072-09 Decreased air volume from hvac vents

 

Beat me to it. That would be the one you're all describing.

 

http://www.tacomaworld.com/forum/at...c-vents-t-sb-0072-09-2-26-09-t-sb-0072-09.pdf

 

wow this is really involved.. my thinks Toyota should replace it.. but i am out of my 36K warranty. Thanks to you guys for the help!!!