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Discussion Starter · #1 ·
2006 Odyssey with 90,000 miles.

Under acceleration ONLY, there is an electrical sounding high pitch whine coming from underneath the hood. It happens in all gears and the faster the RPMs, the louder and higher frequency the whine gets. It's not a screaching loud whine, but rather a background sounding whine (definitely noticeable without much effort), but it was not there before and has been going on a few months now. I have done all required periodic maintenance items on the van.

Is this the transmission? If so, how do I approach with the dealer considering the car runs great. There are no problems shifting, it has plenty of power, it's just this sound. I have a 105K warranty, so i am still in warranty, but like I said, the car is running fine.
 

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Discussion Starter · #3 ·

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I don't know about your case, but the noise is from PS Pump in my case.

Whining noise increases with higher rpm, why? Because remember the PS Pump is driven by the Crank, so it directly relates to rpm.

I put a long screw driver as a stethoscope directly on the PS Pump (be careful not to touch the running serpentine belt), sure enough the whining noise is from the PS Pump!

Other possibilities:
- Worn pulleys
- Weak tensioner....but this gives you belt screeching sound.

If in doubt, have an expert (auto mechanic) listen to it.
 

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We have had a similar issue with our van (an 05) for quite a while - the transmission seems to be just fine in terms of shifting, etc. so I don't know what it could be - it is not the PS pump (that has been replaced several times with no change) or the resevoir (we have the new one) or the idler pulley or other pulleys associated with the timing belt (all changed when I did the timing belt, but the noise remains) - I am wondering if there is a valve/screen in the transmission which is clogged or something... it's not the main filter (changed - noise remains), also not the serpentine belt (also changed) - I really don't want to take apart the transmission, or start randomly replacing parts...
 

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I would love to hear if they found the problem with your van!! My 05 has the same issue!! We have already changed the PS pump & reservoir. It's at the dealer today so I am curious to see if they can come up with a solution. We've taken ours in 4 other times.
 

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See this thread

The thread linked below discusses the same issue. I'm not sure it has ever been resolved. I have the issue too. I hate driving the van around town due to the noise. If I'm by myself, I can crank up the radio to mask it but the wife doesn't like that when I'm driving around with her. :DD

Note: The electrical whine is not the same as the one in the video posted by DirkDaddy.

Electrical Whine Thread
 

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Well, our fourth trip to the dealer about the electrical whining noise was useless. They said they checked everything including the transmission, the replaced power steering pump, and the torque converter. My extended warranty runs out in about a week, ugh! They said if it happens again, to bring it in and they will "work with me". Hoping for another cold spell since the noise only happens when it is cold here. Its a good thing i live in south Louisiana cuz i don't think i could take hearing that noise day after day. Not sure if another Honda is in my future...
 

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Does it whine only when it is in gear and moving? Here are the troubleshooting steps:

1. Rev in Park. Whine = power steering problem; No Whine = not PS
2. Power brake (put in drive and press brake and gas at same time) Whine = torque converter; No whine = final gear (differential) problem.

I have the differential whine on my Acura TL and it is starting on my Odyssey (same transmission).
 

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I have this whine also. It sounds like the old alternator whine I used to hear when using an aftermarket radio in a car from the late 70s or early 80s.

It happens in the higher gears when the RPMs are just over 2100 and below 3000. The pitch changes with the RPMs (higher the RPMs the higher the pitch). The sound completely goes away if you lift your foot off the accelerator. It won't happen if the car is not in gear.

It doesn't sound mechanical and it wouldn't sound so clear inside the cabin if it were coming from the transmission (it would sound more muffled). But it could be an electrical noise coming from the transmission (a sensor wire or something along those lines) causing interference with the sound system's amplifier which is always on whether the radio is on or not (for the active noise canceling circuits).

I'm going to try pulling the fuse on the sound amp to see if the noise goes away. It won't tell me the source of the noise but it will determine if it's electronic interference.
 

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I stand corrected

The noise is not an electrical whine. It does get louder when you open the windows (equally louder from both left and right windows).
 

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Sounds like you have differential gear whine. It sounds like you have a supercharger if you know what that is. It usually starts at higher gears with light load and will eventually be heard in your lower gears too. I have had it on my Ford Ranger, my Acura TL, and now just barely on my Odyssey. It is common to start around 100K and steadily get worse -it is just wear on the bearings. Some get worse faster than others but you will likely get around 75K more miles if the noise is just starting now.
The sure way to tell it is gear whine is that it will do it under light acceleration load and will not make noise when you let off the accelerator.
 

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Accerlation Whine

I just purchased a 2004 116,000 mile Odyssey. I got it from the second owner who religiously did the maintenance including transmission flushes. This van has the acceleration whining/intake sound as if it had a high powered turbo. Like everyone else, I was hoping it was just that, but I took it to the dealer to have it checked out and was told that it is in fact the transmission. They told me not to worry as this is a common sound, but it is a precursor for the transmission eventually failing. I was told to bring it back in after a few thousand miles and they’d do another flush and send me on my way. I’m only an 8,000 per year driver so I’ll see how long it will last. Quoted $3,500.00 for a rebuilt installation.
 

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Transmission housing. My van is now at the tranny specialty shop and he says that some cases get worn fast around the middle bearings and that causes the whine (sorry I'm not so detailed here). It's along story for me that I'm still battling with the used car dealer over I bought my 05 EXL from. I had a warranty and he took the tranny out finally sent it to my shop and was told the case was bad, bearings and torque converter. (mine had whine in 3rd gear and shuddering in other gears) Used car dealer cheaped out and slapped a used tranny in there that also has the whine. It's being diagnosed tomorrow so I have it in writing.

Andy
 

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We've had the same whine in our '05 for close to two years and had it into the deal twice only to be told that they couldn't hear the noise or that it was not something to be concerned about. Our whine seemed to only occur in 4th and 5th gears. Recently the whine had been getting somewhat worse and became combined with a shuddering/jerkiness at 30-40 mph. This time the dealer said they hear the noise and detected a vibration as well as the shuddering/jerkiness. The shuddering of course meant a new torque converter and the rest meant a remanufactured transmission. The quoted cost for all this was to be $3850 but I asked about Honda goodwill and even though the car was long out of warranty, they agreed to cover all but about $1500. That was a relief because the van also needs the steering rack which is leaking, replaced. Anyone else have to deal with this issue yet? Considering doing this repair myself.
 

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2009 With same problem as 2005's

So I am not a technical person at all. I know general car stuff but not highly technical. I am a woman, yes. I also have been an auto damage appraiser for 10 years. I have seen in these posts that the whining noise upon higher acceleration (like Ranger) seems to always come from the 05 models. I have a 2009. 54k miles, yes I drive a lot of highway time to work. Here is what it has been doing.

Upon acceleration, usually greater than speeds of 35-40mph only. It makes a mechanical sounding whine when I accelerate. When I left off gas it immediately stops. If I accelerate again, the sound is back. Also when I am coasting on the Hwy around 65-70 and then re-accelerate, there it is. It never happens at low speeds. It never happens when turning or braking. I have read like a thousand of these posts and threads and there doesn't seem to be a common answer other than possible wheel bearings or maybe some shaft bearing in the transmission or even a heat shield loose and again it seems only like 2005 models. I checked the TSB's and googled and don't know what it is. We don't have a lot of money and I am afraid the dealer or a repair shop will take advantage of my lack of technical knowledge and charge us $500 for something that you could pick up at Autozone for $10. Can anyone help?
Thanks.
2009 Honda Odyssey EX, Aftermarket Remote Starter, Aftermarket DVD player system. Regular oil changes and tires 6 months old. 3 months ago I did run off the road at low speed over a grass ditch but found no physical damage. live in Ohio, so it's been through a lot of weather and salted, bumpy roads.
 

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Check my troubleshooting steps on the first page. I have a lot of experience with this issue and have talked to many transmission specialist about it. Basically, it is just standard bearing wear in the transmission - which causes the gears to whine under load. It is happening mostly on older models because they just have more mileage. The transmission bearings are basically designed to last about 150K depending on mileage type. Its frustrating to know there is an upper design limit on a vehicle tranny, but they can't design them to last forever and keep cost competitive.
The noise you are hearing is the gears becoming slightly misaligned due to the bearings holding them in the exact right spot wearing out. When you add load to those gears (light acceleration) it causes those gears to whine. Right now it is only in your upper gears but will slowly work its way down to the lower gears and they will all whine eventually. Then it will be time for a rebuild or a new vehicle. Don't worry, it is a very slow progression - you are just now getting the beginning stages.
There is not much you can do now besides get the proper fluid in there, add a Magnefine filter, and turn up your radio a little.
I've watched (listened) to this slow progression on both my Ody and my Acura TL (same tranny), as well as a Ford Ranger rear end. It is not going to cause a major failure or leave you stranded on the roadside anytime. You will hear it slowly get worse over the next 50K miles...along with everyone else who's Ody is getting older...
Here are my main threads on how to properly maintain your transmission and more on this subject:
http://www.odyclub.com/forums/52-20...-easy-transmission-fix-pressure-switches.html
Transmission Whine or Something Else? - AcuraZine Community
 

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You will hear it slowly get worse over the next 50K miles...along with everyone else who's Ody is getting older...
Here are my main threads on how to properly maintain your transmission and more on this subject:
http://www.odyclub.com/forums/52-20...-easy-transmission-fix-pressure-switches.html
Transmission Whine or Something Else? - AcuraZine Community
Would more-frequent-than-recommended transmission fluid changes have prevented this? Let's say ....every 15K Miles? Or synthetic transmission fluid after the first 15K miles and onward with changes every 15K?

2007 Odyssey Touring Navi/RES Dark Cherry/Ivory

Mods / Upgrades
- Honda Care 8yr/120,000 mile extended warranty
- Fender Well trim (08P21-SHJ-100)
- Color Matching Door Edge Guards
- Mud Flaps (08P00-SHJ-101)
- Trunk Liner
- Spare Tire & Jack
- Cargo Storage Net
- Plus One Center Seat Added
- Viper 5701 LE Remote Start w/ Comfort Closure & full control of side doors and lift gate (one key FOB!)
- Two extra Viper 2-way Remotes (7251V)
- RES DVD Video on Navi Screen using NavTV (RGBHON+)
- 3M Window Tint on front doors (20%) and Windshield (45%)
- Hella 80W low beam bulbs (HLA-H83170031)
- Front & Rear Centric Parts Posi Quiet Ceramic Brake Pad
- 17" Special Edition SE-14 dePAX Replacement Wheels - Installed
- Polycarbonate Hub Centric Rings from Justforwheels.com (64.1/79.5)
- Aftermarket Honda Emblem Center Cap Decals
- Michelin Primacy MXV4 Tires (235/60R17)
- Wheel Locks
- Sunshine Kids Stuff 'n Scuff Seat Protectors
- Using AMSOIL 100% Synthetic 0W-20 Motor Oil (ASMQT)
- Using AMSOIL Synthetic Transmission Fluid (ATFQT-EA)

Repairs Under Warranty:
- Dead Battery
- Front Driver's Side Seat Back Squeak
- Driver's Side Sliding Door Creak (TSB #06-003)
- Fog Light Adjustment
- Delay When Shifting from R to D (TSB #07-063)
- Torque Converter Shutter (TSB #09-053)
- Peeling paint on rear lift gate on the lip above the license plate (74892-SHJ-A61ZL)
- Passenger Side AC Vent Decal Missing
- Driver's Side Window Auto Roll-up Issue
- RES Headphones Not Working (TSB# 07-084)
- Key FOB #1 Stopped Working
- Brake Pedal Feels Soft (TSB# 07-045)
- Driver's Side Center Row Seat Rattle
- Groaning Noise from Brakes When Hot (TSB #06-024)
- Cracking leather on driver's seat bottom on the side facing the door.
- Large glove compartment door does not close flush
- PCM update
- Scratch on B pillar garnish created when dealer replaced the front seat
- Tailgate Gas Struts Failing
- Gap on Dashboard around Airbag (TSB #09-017)
- Right and Left Lower Control Arms
- Rear Engine Mount
 
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