General Motors GM Genuine Parts 22834330 Cabin Air Temperature Sensor Aspirator

This replacement fit exactly and was very easy to install.

Not worth cheaping out on this part. Bought the half-the-price version to replace the front unit in my '03 Yukon, only to have it buzz just like the old one. Bought this OEM one and good a new. It was not too much of a big deal a the front one is relatively easy to get to.Just heard the noise again, only to find out that there is also one of these located in the rear of my yukon as well. Much more involved to get to, so I will be buying the OEM unit again. 22 years is not a bad run.

If your GMC or Chevy pick up heater only works when set to 90 degrees (not 89) buy this part! Spent a bunch of money at the mechanic trying to fix this problem before I consulted the google and found out about this little part in the headliner that I honestly thought was the onstar microphone. Not hard to install and fixed the problem instantly, removal was easy, the only difficult part was getting the old one disconnected from the cover part, small hands are helpful. So glad to have the heater working again.

My climate controls in my 2012 Chevrolet Silverado were not working (wouldn’t throw heat unless temp was set to 90-deg. The new unit fixed the issue.

I replaced front and rear aspirators with off brand units in a 2004 Tahoe LT. Both of the vehicle's original units had developed a slight hum that once heard, could not be unheard. The newly replaced rear unit (that is a bugger to get access to) started buzzing very loudly after only a few months use.Both aftermarket sensors have been replaced with these OEM Delco units and all is quiet again.For fellow fix-it inclined folks here's how to access the rear aspirator.Use a Panel Clip Removal Pliers to remove clips.Remove the upper plastic trim at the rear of the headliner.Remove both D pillar panels.Remove the rear cargo light lens and then housing and let it hang.Remove both coat hooks by pulling and prying along the seam that joins each hook. Each hook is two pieces that when eventually pulled apart will release as an anchor and allow the headliner to drop.If you have second row seats, lay them flat at this time.Un-fasten the C pillar panels down to the seat belts. Use a bungee cord to pull them inward.Remove the grill from the aspirator.Remove the remaining two or three plastic retaining clips along the center of the headliner with the pliers. The headliner should now drop easily.Reach in through the rear being cautious not to bend the headliner too much thereby creasing it.Unplug the old aspirator and plug in the new unit.Position the aspirator over the opening while another person attaches the grill from underneath. If going solo, you MIGHT be able to reattach the grill and hold the aspirator while accessing them from either side.Button up the rear in reverse order.The front aspirator only requires removing the grill, unfastening the B pillar down halfway, then carefully pull down on the headliner until you've access to unplug the aspirator and slip in the new unit and button it up.If it's cold outside and the headliner isn't very pliable, also removing the A pillar panel and sun visor may be prudent to avoid creasing the headliner.See photos for a dropped headliner and what the coat hooks look like once they release.Happy Trails.

Works well, is an OEM part, and the best part gets rid of that Hum above your head when the old one fails.Bit of a pain to get in, you will need hook tools and small hands unless you pull half your headliner down. Even then you are pulling off most of A pillar and part of B pillar to get to this thing, it's not fun but an hour or so and you are good to go.

Just bought a 2011 Silverado 1500 and this had been taped over with painters tape. I took off the tape and I knew why! It made a terrible whine in your ear. Pull off the drivers visor and A pillar cover and loosen the seatbelt cover after opening ext cab door. Pull down the headliner and pull that sucker out and put back in and replace it all. Took about 20 minutes all told. Played with temp controls and could feel heat go up and down accordingly. All is well for now!

I had a buzzing sound from above my head and I notice my heat would only get hot if I set the temp all the way up. This is the interior temp sensor for the HVAC system. Quick install fixed both issues. My original part was filled with dust on the sensor and the fan causing inaccurate temp readings and the buzzing noise from the fan.2007 Chevy Silverado 2500HD LTZ extended cab