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Pilot noise from center console when braking

5 messages,  Last post on Sep 02, 2009 at 1:10 PM

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#1 of 5 Pilot noise from center console when braking by trickstarjimmy Sep 30, 2007 (11:21 am)
Hi! We have a 2005 Honda Pilot, and when braking, there is a variable high frequency pitched noise emitted from the center console/a/c vent areas. It only occurs when the a/c is turned on. The noise is intensified when turning on the rear manual a/c control. When turning off the air conditioner, the sound does not occur. This seems like it might be related to the resistor failure or the rear a/c transistor block failure described elsewhere. Are there any more specific TSB files that address this? Thankfully, we're still under warranty, but, magically, it seems that we can't replicate the noise when going to the dealership. I'm just looking for information to pass along to the service personnel. Thanks for any help! Jimmy Replies to this message: dustink (Aug 20, 2008 5:29 am) mpthompson (Sep 02, 2009 1:10 pm) cthorp (Feb 20, 2009 9:49 am)
#2 of 5 Pilot brakes by pareo Feb 06, 2008 (2:09 pm)
We have a 2004 pilot. For sometime now there is a resistance in the brakes, especially when descending a slight incline. Any one experienced this before? Unfortunately, our mechanics cannot experience this on inspection. can be very frightening. It does not matter what weather condition there is.
#3 of 5 Re: Pilot noise from center console when braking [trickstarjimmy] by dustink Aug 20, 2008 (5:29 am)
Replying to: trickstarjimmy (Sep 30, 2007 11:21 am) I recently had this same problem. When I used the brake there was a very loud noise (squeaking) coming from the center console area. There was also a noticeable sloshing of water sound coming from the center console area. It would go away as soon as I turned off the A/C. I took it into a Firestone Auto and they did a complete check on my A/C system and said it was fine. They thought it was something up in my dash but said I would pay a lot of money in labor for someone to take it apart and dig around in there to find the problem. Luckily for me, someone had posted a similar experience on another website and said they fixed the problem. Long story short...there is a rear A/C fan motor in the center console and the condensation drain pipe on the was clogged. Underneath the vehicle, between the front row seats, above the transaxle rod, there is a black 2 inch rubber nipple. I had to stick a screwdriver up there and unclog it. I had about a quart of water coming pouring out of there. After that I took the plastic off the driver side of the center console and cleaned the filter for the AC fan motor. I'm not sure how it was getting any air because it was extremely filthy. After cleaning the filter and unclogging the condensation drain pipe I haven't heard the squeaking or the sloshing sound. Hopefully this helps. I was glad it was an easy DIY project and was free! Replies to this message: mpthompson (Sep 02, 2009 1:10 pm)
#4 of 5 Re: Pilot noise from center console when braking [trickstarjimmy] by cthorp Feb 20, 2009 (9:49 am)
Replying to: trickstarjimmy (Sep 30, 2007 11:21 am) We had the same problem. It turned out to be the tensioner on the serpentine belt. I believe when you turn off the air it just blocks the sound. It wasn't related to the AC at all. Yet when I was braking and it made the sound I could turn off the air and it would stop immediately. So for the longest time I thought it was the AC. No if I can just figure out the water sound from the center console.
#5 of 5 Re: Pilot noise from center console when braking [dustink] by mpthompson Sep 02, 2009 (1:10 pm)
Replying to: dustink (Aug 20, 2008 5:29 am) Wonderful advice. I was getting the exact same symptoms in my 2004 Honda Pilot -- a loud squealing noise when braking and the faint sound of water sloshing in the center console. I thought it had something to do with the main cabin fan and was looking into taking apart the whole center console to get at it. Instead, I came across the suggestion above by trickstarjimmy and it took me all of 3 minutes to fix the problem. Just as he described the 2 inch rubber nipple over the drain to the rear A/C fan was clogged and was easily unclogged with a small screw driver. About a quart of accumulated water drained from the fan. I would have never guessed the nature of the problem if I hadn't tripped across the suggestion above. The noise is now gone and I couldn't be happier.

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