ticking sound

[Biggie]

My 95 SHO has a steady ticking sound when I turn on my fan speed on/up. It does seem to go away after I play with the fan speed. Fan speed works fine as well as blows cold and hot no problems. Does anyone know what might be causing the sound?

 

[zoomlater]

Could you post a video or audio clip of the sound to see if others have encountered the same issue

 

[rubydist]

leaf in the blower wheel?

 

[Biggie]

not a leaf, it has a same repetitive sound when it ticks. I am wondering if it could be the blower motor resistor or something to do with the blend door. The sound is more noticeable under the glove compartment. Was just wondering if anyone has heard of this before and if there was something common to fix. I'll see if I can make a clip.

 

[rubydist]

in some cases, a bad blend door actuator will make a "tick" noise, maybe that is it.

 

[luigisho]

It sounds like that is it. Actuator repeating or something

 

[Biggie]

To do this work, does it require the dash to be taken out? Also, I have a parts car which I can rob from. Is there a guide on how to remove the dash?

 

[luigisho]

Pretty sure although I have heard of people doing it with the dash still in or halfway undone. I can't access the links in other threads to look at what was posted when I used the search function.

 

[sperold]

There is a procedure where the climate system does a diagnostic routing, and if your blend door apparatus is struggling, it may show up in that test.
Usually if you get hot and cold air when you want it, you are good, but maybe there is an early stage where it is noisy.
http://www.wikisho.com/wiki/Running_the_Auto_AC_self-test

 

[zoomlater]

Here is an old post by Shotimer. It seems the links to old post seem to be broken, maybe Jordan has a way to find these old links. Something to consider when you are doing the BDA is changing the heater core as well

http://www.shoforum.com/index.php?threads/reflections-after-bda-replacement.117836/#post-1292738

 

[Biggie]

Thanks for the links. I'll run the diagnostic test first and see if an error code appears.