- #1 of 35
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2007 Odyssey Touring-Variable Cylinder Mgmt
by pcruciani
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Feb 21, 2007 (6:19 pm)
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I recently purchased a new 2007 Odyssey Touring. When the Variable Cylinder Managment system engages (from 6 to 3 cylinders) there is a very noticeable hesitation/bucking. According to the owner's manual and Odyssey video, the driver will "not notice" VCM being engaged. I test drove two other Odysseys equipped with VCM and didn't notice any hesitation/bucking.
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- #2 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [pcruciani]
by cccompson
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Feb 22, 2007 (1:59 pm)
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Replying to: pcruciani (Feb 21, 2007 6:19 pm)
Some claim they can feel it engage and some (myself included) never have felt anything.
What you are describing, however, is something out of the ordinary. Sounds like it's time for a trip back to the dealer.
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- #3 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [pcruciani]
by blackexv6
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Feb 22, 2007 (4:12 pm)
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Replying to: pcruciani (Feb 21, 2007 6:19 pm)
I notice the VCM on our '06 EXL/NAV/RES...probably because of my mechanical background. The engine will vibrate slightly & there is a suttle noise pulsation in the cabin.
Hesitation & bucking is definitely not normal. Have the dealer look at it & keep us posted.
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- #4 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [cccompson]
by pcruciani
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Feb 23, 2007 (4:53 pm)
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Replying to: cccompson (Feb 22, 2007 1:59 pm)
Thanks for the feedback. The hesitation/bucking is definitely more noticeable at slow speeds, particularly when decelerating. I have also noticed vibration through the gas pedal, which is odd because I believe the odyssey is throttle by wire. I have an appt. with the dealer tomorrow morning.
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- #5 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [pcruciani]
by pcruciani
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Feb 28, 2007 (4:53 pm)
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Replying to: pcruciani (Feb 21, 2007 6:19 pm)
I had a rather disappointing experience with the dealer. I took the technician for a test drive and although he could feel the hesitation/bucking, the dealer claims that is "normal" and a result of the VCM system engaging/disengaging. I find it hard to believe that a vehicle that constantly hesitates, enough that the driver and passenger(s) can notice, is normal, especially for a vehicle with a $39690 MSRP. Who would buy an Odyssey if they all hesitated/bucked every time the VCM system engaged/disengaged The other frustrating thing is that if the dealer doesn't get a "code" to indicate there is a problem, they assume there isn't one. A car is still a machine and not every piece of the machine has a sensor that provides feedback or a "code" to a computer. It could be a loose or bad plug wire, a bad spark plug, bad sensor or something else fairly minor. I doubt any of basics were checked. I am taking it to a different dealer.
Do any fellow VCM equipped owners feel anything when the system engages/disengages?
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- #6 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [pcruciani]
by odymike
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Mar 01, 2007 (6:52 am)
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Replying to: pcruciani (Feb 28, 2007 4:53 pm)
In my 05' Touring, the only indication that VCM has engaged is the light on the dashboard. I don't hear/feel anything. When it turns disengages, occasionally you can feel a minor jerk - like a downshift as all six cylinders fire - again, it really isn't noticeable (to me anyway).
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- #7 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [odymike]
by pcruciani
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Mar 01, 2007 (1:22 pm)
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Replying to: odymike (Mar 01, 2007 6:52 am)
Thanks for the reply. The video that came with the van states that the switch between 3 and 6 cylinders "is seamless to the driver and passangers," and for a $40K vehicle, it ought to be.
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- #8 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [pcruciani]
by chirp
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Mar 04, 2007 (10:35 am)
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Replying to: pcruciani (Mar 01, 2007 1:22 pm)
I have an '06 Touring and the VCM system is totally unnoticeable as advertised. The eco light is all I ever see. Someone said that the eco light and the VCM are not necessarily always connected. In other words, you can be in a gas-saving mode (i.e. coasting) with the eco light on and the engine not necessarily in VCM mode. That doesn't really have anything to do with your situation, unfortunately. The bucking sounds like a transmission issue to me.
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- #9 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [pcruciani]
by exb0
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Mar 19, 2007 (6:39 am)
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Replying to: pcruciani (Feb 23, 2007 4:53 pm)
The hesitation/bucking is definitely more noticeable at slow speeds, particularly when decelerating.
My wife drives an 07 EX-L with same problem. At first, I also thought it was the VCM, but then I took it for an extended test drive. I noticed that when it does hesitate on deceleration the RPM goes up from 1000 to 1500. To me it seems that the transmission is downshifting whenever the van is coasting.
The van has a little over 1000 miles on it now, and seems like it doesn’t do it as much anymore, or if it does, it does it much smother now.
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- #10 of 35
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Re: 2007 Odyssey Touring-Variable Cylinder Mgmt [exb0]
by bobber1
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Mar 19, 2007 (4:40 pm)
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Replying to: exb0 (Mar 19, 2007 6:39 am)
Are you sure it isn't the transmission working to slow the van down? These vans don't coast down hills like older vehicles do and the transmission works more to slow the van down so you're not using your brakes as much and wearing them out. My EX does this and it took a while to get used to, but I like it now. I don't have to hit the brakes as quickly or as hard to slow down.
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