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- Jan 8, 2015
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I just picked up my new to me 2005 Tahoe this morning and discovered the rear one on mine was buzzing. Merely blowing out the built up dust didnt fix mine. They ARE serviceable for anyone handy enough or inclined to give it 20 minutes of your time. The hardest part was coming to the eventual conclusion that the only way to get them out is through the hole itself. I thought wrongly that there would be a way in through either a some light or the vents.
For anyone interested here's what I did.
1. I took my ghetto fabbed trim tool (aka bent butter knife) and pried off the plastic cover.
2. Widen the opening by carefully cut the headliner about a quarter inch in four places equally around the opening.
3. Pull the aspirator and wiring through the opening with some plyers...two pairs and some wiggling got mine out fairly easily.
4. Unsnapped the wiring connector.
5. Carefully separate the top and bottom "housing" to the aspirator.
6. Separate the fan and electrical board from the bottom piece...there's a couple black pieces that just took a light push to release it.
7. Carefully bdnd back the thermometer to allow the fan to slide off.
8. Using some compressed air blow off all the dust, I washed all the pieces besides the electrical board, and inspect for any damage. The mating surface on mine between the fan and the lower "rubber seat" was a bit rough causing a clicking. It took some gentle scraping but after a couple tries the clicking went away. You can test it by just pitting fan back in and hitting it with the air. A little petroleum jelly on the shaft...hehe...and she was good to go.
10. Connect wires and jam it back in.
11. With a little wiggling around get the aspirator centered above the hole.
12. With even pressure snap the cover back on...the headliner should flex enough to allow counter pressure from the roof.
I am having this problem also. Will be looking into it soon
Had no idea that this is what it was. Thought it was a blown tweeter or something!