- Oct 9, 1999
- 2,090
- 14
- 81
2002 Trailblazer LTZ. This just began out of the blue last spring. Heat and AC are always at the appropriate temperature. What I do not get is output. When I first start the TB up, the heat blows (A/C is the same) just fine at any speed setting. After 10-15 minutes, the output slows down so much that it begins to get cold inside, even with the blower on high. Blower speed DOES NOT change when the output drops. You can hear the fan "sound" does not change.
It seems like someone just put a plug in the vents. I have looked in the vents with a small bore camera and can see nothing blocking. The fan motor is 2 years old and functions just fine. I have messed with this for 6 months, and now it is cold here in IN and am turning to the great minds here for assistance. Ideas?
Help!!
Thanks for your input
It seems like someone just put a plug in the vents. I have looked in the vents with a small bore camera and can see nothing blocking. The fan motor is 2 years old and functions just fine. I have messed with this for 6 months, and now it is cold here in IN and am turning to the great minds here for assistance. Ideas?
Help!!
Thanks for your input