Quote:
Originally Posted by The Cold War Kid
The noise comes on when I start then runs for 10 seconds or so. Maybe a vacuum pump? I have no idea.
The heater control does not work and the air passages are very slow to change with the control. Maybe this is something to do with the noise?
Anyone have this problem?
|
I just had this similar problem and came to this site for help. This noticeably loud buzzing noise would come on after ignition and last for about 20-30 seconds. My heater would also only blow cold air with no heat on any setting. There are many posts on this forum and a few YouTube videos on the topic. Many of the problems center around the blend door actuators behind the dash to the left of the glove compartment. Before removing the actuator servo motor(s), which can be a hassle, simply disconnecting the wiring harness to the servo motor should determine which one is creating all the noise.
After I found which one was making the buzzing sound, a visual inspection revealed that the linkage appeared to jammed against a nearby metal bracket. I sprayed some lubricant on the linkage and gently pried it loose while the controls were on the heat setting and the linkage popped free and rotated several degrees. Sure enough, after I started the vehicle I had warm air to the vents!
Even though it seems that my heating (and cooling) seem to be working okay now, I wouldn't be surprised if there is some damage to the servo motor which may require replacing eventually. For now I am completely satisfied with the results. I only needed to remove the glove compartments, lower skirt and plastic floor duct tubing to get pretty clear access to the actuators. All together, about an hour worth of work but, again, I didn't replace any of the actuators- yet.
I am really glad that I found this site and registered today. Thanks to all who posted on this subject making it easier for us with the same problem.