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Honda Accord Hybrid Transmission Questions

16 messages,  Last post on Aug 23, 2009 at 7:18 PM

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What is this discussion about? Honda Accord, Transmission, Hybrid Cars, Sedan

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#7 of 16 Re: shifting noise [ahhhhh] by tonyczar May 31, 2008 (8:57 pm)
Replying to: ahhhhh (Jan 26, 2008 8:54 am) I've had it since purchase of my 2007 Accord Hybrid. Occurs when shifting from second to third gear. I have been assuming it is somehow related to engaging of the electronic motors on the wheels.
#8 of 16 05 Hybrid transmission "hunting and surging" by cknuth Mar 29, 2009 (5:14 am)
I am the new owner of a used 2005 Accord Hybrid with 43K miles. There seems to be times when the transmission is hunting for the right gear and/or surging slightly. It usually occurs when driving mildly between 35 and 45 mph, occasionally slower, but does not occur at higher speeds. Most often occurs when one is at nearly constant speed. Has anyone experienced this? If so, what was the problem? Replies to this message: lhart (Jul 14, 2009 3:35 pm) ahhhhh (Jul 14, 2009 5:29 pm) cknuth (Jul 14, 2009 6:20 pm) lhart (Aug 07, 2009 9:06 am)
#9 of 16 Re: 05 Hybrid transmission "hunting and surging" [cknuth] by lhart Jul 14, 2009 (3:35 pm)
Replying to: cknuth (Mar 29, 2009 5:14 am) I also own a 2005 Accord Hybrid, bought it new and have almost 90,000 miles on it. I also have the hunting/surging problem. First time I took it in, they told me it wasn't the transmission, it was the fuel injectors and they replaced them a few months ago (lucky for me I bought the extended warranty). I am still having the same problem. I am taking it in for service this Thursday (July 16th) and hope they can finally determine what is wrong. If they do, I will let you know. I have been searching around to find another owner with the same problem. Glad to know I am not crazy. Replies to this message: ahhhhh (Jul 14, 2009 5:29 pm) cknuth (Jul 14, 2009 6:20 pm) lhart (Aug 07, 2009 9:06 am)
#10 of 16 Re: 05 Hybrid transmission "hunting and surging" [lhart] by ahhhhh Jul 14, 2009 (5:29 pm)
Replying to: lhart (Jul 14, 2009 3:35 pm) I bought a 2005 HAH new... have had it four years now, and it has had the hunting/surges from the first day of ownership. My theory is it has to do with the transition between gas and electricity. I think it's some function of the hybrid technology. In fact, I was telling a Prius owner about this, and he said he experiences the same thing with his Prius at times.   It is disconcerting nonetheless!
#11 of 16 Re: 05 Hybrid transmission "hunting and surging" [lhart] by cknuth Jul 14, 2009 (6:20 pm)
Replying to: lhart (Jul 14, 2009 3:35 pm) One thing for them to check is the "lock up solenoid". The transmission goes into "overdrive lockup" for a more direct transmission link up (no slippage, I am not a mechanic). I have done some reading and think this is something worth mentioning. Please let me know what they find and if it fixes the problem. I still have it after one visit (computer program update, no change in problem). Replies to this message: lhart (Aug 07, 2009 9:06 am)
#12 of 16 Re: Slow downshift [kmcmurtrie] by tonyczar Jul 30, 2009 (10:30 pm)
Replying to: kmcmurtrie (Jan 04, 2006 2:45 pm) I've owned my HAH for two years, purchased new. Have had this issue since day one. I'm resigned to the fact that I'm driving a computer designed to shift to save gas, not to perform during in-town driving. This is not a "driver's car". If I want performance, I drive in second gear. It drops the mpg down to 20, but it's very fun to drive this way.
#13 of 16 Re: 05 Hybrid transmission "hunting and surging" [cknuth] by lhart Aug 07, 2009 (9:06 am)
Replying to: cknuth (Jul 14, 2009 6:20 pm) Thanks. I think I will have them check the "lock up solenoid" before my extended warranty runs out. I also think aaaahhhh's response (#10) also makes since and would explain way the service people can't find anything wrong when they check for it.
#15 of 16 A real stumper -- loud bass noise @ 1,600 rpm by swingdj Aug 19, 2009 (6:54 pm)
2005 Accord Hybrid   At 1,600 rpm in fourth and fifth gears (sometimes third and sometimes at 800 rpm when coasting to a stop) a loud noise arises. It sounds like someone installed an 800-watt subwoofer in my car. It seems to come from every direction and it's deafening.   It only does it after the car has warmed up and it only does it around from about 1,550 to 1,650 rpm (sometimes at 800 but rarely). It only does it when in ECO mode but not sure if that's related because the car is cruising anyway.   I took two amateur mechanics for a spin and they were stumped. It's not the rear brakes as they were cool to the touch after the ride. It's difficult to say if we feel any vibrations as the sound floods the senses and it's impossible to pinpoint where the sound originates.:dunno:   Other than that, no issues with the car.
#16 of 16 same problem by rhand3 Aug 23, 2009 (7:18 pm)
I have the same issue. I have been told by the Honda Dealership that it is the "noise reduction unit" Over $700 to fix. This is a new technology that was installed in this car. As it's not effecting performance I haven't fixed it yet. The $$ is an issue right now. As a side note, if enough of us complain about the problem in this car may AH would repair it. I have read several other posts about this.

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