Impala Loud Clicking Noise in Dash – Car Repair ArticleAugust 12, 2010 12:40 pm Air Conditioning, Chevrolet, noises
© DenLorsTools.com Summary: Car repair tips article related to loud clicking or popping noise in the dash of a 2007 Chevrolet Impala SS with dual climate control. Article covers how to quickly troubleshoot and pinpoint the noise. Included are basic instructions and tools required to repair this particular problem. Click on images for a larger view.
The car in this article has been featured on DenLors Auto Blog before… it’s one of my cars! The custom interior blog, was written when we first purchased it and had the two tone leather installed – look for the related link at the end of this article. Back to the particular issue at hand. We were driving right along, when I pushed the recirculate button on the HVAC (Heating Ventilation & Air Conditioning) controls. A LOUD clicking and clacking began immediately. I’ve heard many actuators in the dash of other cars make noise before, but this was by far the loudest one I remember. Since it started making noise as soon as I selected recirculate, I was fairly certain the recirculate door motor was the source. Just to make 100% sure, I had to check.
With the glove box door opened and swung down the actuator can be seen.
While feeling the actuator, operating the fresh air and then recirculate button, it was easy to pin it down as the culprit. The next step was to remove the HVAC motor by removing the two 5.5 mm screws. It’s a tight area to work in, however it can be changed without removing any other trim pieces for access. A 1/4″ ratchet and a 5.5mm socket is all that is needed to change the part - no specialty automotive tools.
Two screws, one electrical plug and out it comes. Also called a Fresh air door actuator.
It’s best to remove the actuator prior to going to the dealership. For some reason HVAC solenoids can be difficult to look up. The number “52409974″ that is on the white barcode strangely does NOT crossover at the dealer. The current GM# is 15844096. At this time there’s no aftermarket ones available so the dealer is the only option.
No, your eyes aren’t deceiving you. This Chevy part is made in China.
Sad to say, but lower quality in American cars is one reason so many people only buy foreign. Our previous car was a Mitsubishi Diamante – driven for 10 years with the only maintenance performed; regular oil changes, a set of tires and a couple of batteries.