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Discussion Starter · #1 ·
I see that the new Ridgeline is going to have "cylinder deactivation management" in an effort to have better EPA numbers.

I've heard others express doubts about this technology being a good idea for the long haul. How much of a hindrance is this going to represent to the new Ridgeline do you think?

I have read so many reports of problems over the years with various manufacturers from GM to Mercedes trying to develop a system that works without causing problems.

It seems like a lot of effort for not much return with the possibility of real problems developing as time goes along.

Agree or disagree?
 

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For me to soon to tell. My 09 Ram hemi has mds which cuts 8 to 4 cylinders. I have had no issues so far with the hemi. No oil consumption, no vibration when it kicks in and out of mds.

Honda's system seems to have mixed reviews with the Pilot.
 

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Our 06 Pilot has it. 285K on the clock and not a hiccup. You can't even tell (save for the light on the dash) that it has activated. It won't activate when you are asking the vehicle to accelerate, so it cuts from 6 to 3 cyl only during constant speed or deceleration on flat ground or down hill.

We aren't talking about the ol' 4-6-8 Cadillac system or whatever infamous system from back in the day.
 

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Discussion Starter · #4 ·
Thank you for your responses. I realize that there have been a lot of progress made in computing power and other features to allow this type of idea to function properly.

But it seems like a lot of unnecessary complication to me. I am so grateful that my 2013 Ridgeline does not have this feature. I've seen as high as 25 miles per gallon on the highway driving 60 mph without air-conditioning. And I get the standard 15 miles per gallon in town by being light footed on the throttle. It works well enough for me and I don't have to worry about additional mechanical difficulties down the road.

Just my personal feelings. Everybody wants more miles per gallon, and we know that gas is going to go back up again. But they get so much money to work on a vehicle anymore, I would just as soon stay out of the repair Lane as far as my truck is concerned.

But it is good to hear that Honda's system seems to be working okay. Again thanks for responding.
 

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I see that the new Ridgeline is going to have "cylinder deactivation management" in an effort to have better EPA numbers.

I've heard others express doubts about this technology being a good idea for the long haul. How much of a hindrance is this going to represent to the new Ridgeline do you think?

I have read so many reports of problems over the years with various manufacturers from GM to Mercedes trying to develop a system that works without causing problems.

It seems like a lot of effort for not much return with the possibility of real problems developing as time goes along.

Agree or disagree?
Thank you for your responses. I realize that there have been a lot of progress made in computing power and other features to allow this type of idea to function properly.

But it seems like a lot of unnecessary complication to me. I am so grateful that my 2013 Ridgeline does not have this feature. I've seen as high as 25 miles per gallon on the highway driving 60 mph without air-conditioning. And I get the standard 15 miles per gallon in town by being light footed on the throttle. It works well enough for me and I don't have to worry about additional mechanical difficulties down the road.

Just my personal feelings. Everybody wants more miles per gallon, and we know that gas is going to go back up again. But they get so much money to work on a vehicle anymore, I would just as soon stay out of the repair Lane as far as my truck is concerned.

But it is good to hear that Honda's system seems to be working okay. Again thanks for responding.
I totally agree. Honda has had numerous issues with their system and many have reported high oil consumption as a by-product of VCM.

I think the system is too complex for marginal benefit and I have no interest in it for a vehicle I plan to keep for the long haul. Now if I planned to trade every few years, that might be another thing altogether. But then it will become someone else's problem and won't be a warranty concern for Honda either.

I realize that many have no problem with VCM. However, there are many that do and I have zero interest in it for the perceived small benefit. I think we'd get better FE by using pure gas rather than Egas and forget that complicated VCM.
 

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My close friend has a 2011 Odyssey with 55k. Just had his motor rebuilt due to carbon build up on a couple spark plugs causing them to explode and scar the cylinder walls and catastrophic damage from the metal shavings. He researched and believes this is due to the VCM causing oil residue buildup on only half the engine.
 

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We've had two 2nd Generation Honda Pilots that had cylinder deactivation: one with the older system that did 6-4-3 cylinder deactivation and the newer and then the newer system that just did 6-3. Had zero issues with either system. We never had either Pilot in the shop for anything mechanical. The only things we ever had warranty work on was on the 2010 Pilot was a malfunctioning radio and on the 2013 Pilot (which we just traded in on a 2016 Pilot) was a malfunctioning driver power lock failure. Both were very minor issues that were fixed quickly.

BTW: the 2016 is a HUGE improvement over the last gen Pilot! I only have two minor gripes.
1) the weird driver's side mirror that Honda is apparently putting on everything now. Looking at it for more than a few seconds will induce a migraine. Worst convex mirror EVER.
2) the touch controls on the radio are too close to the vent by the steering wheel. When aiming the vent, it's easy to change volume, hit home, etc. on the radio.


Sent from AutoGuide.com Free App
 

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I hope warranty covered the repair? You might want to point him to the VCM Muzzler thread over at Piloteers.org. I haven't researched it, but if I had VCM, I'd be pretty interested in defeating it, if possible.
 

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Interesting that the VCM oil consumption related issues are for 2009 and later. I wonder what's different about the system in my 06? As I wouldn't hesitate to buy the same engine/engine management system.
We have 285K on the clock and just noticed 1/2 quart of oil consumption in the last oil change with 5-30 Mobil 1 (7K mile interval). Now changed to 10-40 Castrol GTX dino oil and have ZERO consumption in the last 4000 miles.

I agree with one of the previous posters about needlessly complicated systems. Those stupid stop/start systems, how much fuel cost does it save and how much are you going to additionally spend in starters and batteries over the life of a vehicle? How about as the vehicle gets some mileage and doesn't start with a half revolution of the flywheel?
 

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GM had a number of problems with their first gen cylinder deactivation. From what I have heard, they are much better on the later model year trucks.
A friend of mine from Florida stopped by for a visit in his Cadillac with VCM around 1980 give or take a year or so. It actually sounded like a piece of farm machinery. I have only driven one, tried out a '14 Crosstour V-6 brought it back after a couple of blocks as you could feel it vibrate when changing. Drove the CT I-4, awesome, brought it home.
 

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Discussion Starter · #13 ·
Thanks everyone for responding. I think it is important that this subject get wide viewership. I know some who are responding now suggested long ago before the new Ridgeline was fully implemented, to please not put this damnable cylinder deactivation garbage on the new Ridgeline. But the "bottom line boys" prevailed at Honda and they stuck the damn thing on their. So the best we can hope for now is that when problems do pop up enough people will complain, and if they think it's going to cost them sales they can either stop installing it or allow the customer to deactivate it. I don't know how the EPA rules work but this is totally a program designed to get better EPA numbers in the hope of greater sales. And since the company wants to make money and that's what they're in business for, you can't blame them for that. But how about the customer that they always claim is so important? If they're so important why screw them with a program that is going to foul up down the road?

So hopefully, if enough people make negative comments about this great invention, they might reconsider their position. But I get the impression that there are people at the top of Honda who are very hardheaded when it comes to listening to people who really care about their product and have some expertise that could be useful to them.

In any event, "down the road we go!" But it seems such a shame that we all have waited so long for this new vehicle and then they put something like this on it that has the potential to cause real trouble for those who keep their vehicle very long. Again I am glad I have a 2013 with out this particular gadget! It wouldn't surprise me to learn that down the road my vehicle is going to be worth more money because it does not have this silly piece of equipment!!!
 

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Dealer did cover the repair without any issue and very quickly. He's just worried about what happens once the vehicle gets out of warranty. Other than that, 0 problems with the van, and 27+ on highway trips. I was hoping the new engine in the RL has some changes from 2011 to prevent this issue. I have just under 200k on my Tahoe without major repairs, but poor fuel economy, hoping to get reliability and fuel economy with comfort in the RL.

I am downsizing vehicles and have narrowed my search to the RL and 2017 Titan 1/2 ton (due out soon). I think RL is biggest of the mid-size, best non-diesel fuel economy, and has many standard features that I want on the mid trim levels. The rear seat dimensions are very close to the MDX (RL has same rear Leg/head Room and wider hip/shoulder) for those that are wondering about the back seat. I sat in the MDX and think there is enough room for two adults, we will seat what the rear seat rake is. The RL also has the best interior of the mid-size trucks. Only thing holding me back is underwhelming exterior looks, VCM fears (hopefully unfounded), and low towing. The 2017 Titan ( not XD) is by far the best looking truck IMO and has the best interior, particularly at the mid-trim level. Only draw back there is the 15/20 mpg. But, I do get the xtra towing/pay load/leg room when I need it. I imagine it will tow 10k and have a payload over 2k. What to do... Oh well, gives me time for RLs to get on the lot and dealers to hopefully back off MSRP+ pricing or heaven forbid getting to $1500 below MSRP. Huge selling points for the Titan is the standard features on the mid trim level, SV trim has nav, push button start, power seats, trailer brakes, rear a/c vents, rear arm rest, and trailer package with a proven 5.6 V8 and 7 speed transmission (390 HP/401 ft. torque). The full size GM trucks at any trim level do not have rear console A/C vents (they are under front seats), F150 does not have standard rear console air vents (have to get upgraded console) and no arm rest until you get the Lariat package. Tundra has everything standard, but the 5.7 is a complete gas hog and been around since 2007. Ram has rear air and armrest on some mid trim levels, rear middle seat is a joke, electronics reliability are questionable, and has been out since 2009. I'll be keeping my next truck 150k plus and 10 years, so having a current design for at least 5-7 years is a big bonus (as long as it is reliable).
 

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The VCM system is unlikely to give you any real problems over a 150K mile span. About the worst that people have reported is higher oil consumption, but even then it's not much more than a quart in between changes. Oil is pretty cheap, overall not a huge problem. The only other complaint that might surface with VCM is being able to tell when it switches in and out, but most drivers are unable to detect the difference or have their radio on so loud that they don't notice.

You are much more likely to have problems with the electronic gadgets on the car (touch screen, buttons, switches, active motor mounts, active noise cancellation, Honda Sensing sensors, etc) than with the engine itself.

There was a comment above about an older car with VCM-type system sounding like farm machinery - a new Honda with VCM would sound much the same except that Honda goes to great lengths to hide the thrashing and rattling from the driver. Without Active Engine Mounts and Active Noise Cancellation the transition in modes would be very apparent indeed, and most drivers would find it extremely annoying. But with those features functional, the transition is pretty seamless.

Overall VCM on the Gen II should be a safe bet. There are only a few of us snobbish purists who don't want the added complexity, for the vast majority of the buyers VCM is a great feature.
 

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Discussion Starter · #16 ·
The VCM system is unlikely to give you any real problems over a 150K mile span. About the worst that people have reported is higher oil consumption, but even then it's not much more than a quart in between changes. Oil is pretty cheap, overall not a huge problem. The only other complaint that might surface with VCM is being able to tell when it switches in and out, but most drivers are unable to detect the difference or have their radio on so loud that they don't notice.

You are much more likely to have problems with the electronic gadgets on the car (touch screen, buttons, switches, active motor mounts, active noise cancellation, Honda Sensing sensors, etc) than with the engine itself.

There was a comment above about an older car with VCM-type system sounding like farm machinery - a new Honda with VCM would sound much the same except that Honda goes to great lengths to hide the thrashing and rattling from the driver. Without Active Engine Mounts and Active Noise Cancellation the transition in modes would be very apparent indeed, and most drivers would find it extremely annoying. But with those features functional, the transition is pretty seamless.

Overall VCM on the Gen II should be a safe bet. There are only a few of us snobbish purists who don't want the added complexity, for the vast majority of the buyers VCM is a great feature.
Why is it a great feature? A few miles per gallon seems like a poor trade off to me. If just a few of the things that can go wrong with VCM do so the owner will sure be sorry they have this device, I do believe!!! I am not trying to be argumentative, just concerned with the new Ridgeline not living up to anticipated positive results. I love my Ridgeline, and like so many other folks who own a Ridgeline and visit this forum, I had hoped for better!!
 

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Have said it several times on here, Chrysler/Dodge/Ram has had this since 2005 on the HEMI engines with no issues. I know firsthand. Spark plugs looked the same on all cylinders, no wear differences ever reported (via compression tests), and was seamless. Only issues ever were with aftermarket or hacked exhaust that droned in 4cyl mode

Certainly Honda can do as good with their system. It's not that complex. No more than VTEC on the valve side and the computer is already telling the injectors when to open (or not in this case).
 

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For whatever reason, Honda's implementation has had mixed results and some engine issues have been attributed to VCM. There's a lawsuit to that effect.
 

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I see nothing wrong with Honda claiming credit for the increased MPG with VCM. I also see nothing wrong with them including a switch for deactivation of the VCM.
 
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Discussion Starter · #20 ·
I see nothing wrong with Honda claiming credit for the increased MPG with VCM. I also see nothing wrong with them including a switch for deactivation of the VCM.
I can see why the EPA would not want you claiming EPA numbers with the VCM active and then deactivating it. However I see no problem why they should not allow you to request the EPA tests the vehicle with both activated and deactivated VCM. Then it would be right out there for the customers to decide for themselves whether they wanted an active or an inactive VCM.

There is probably some federal regulation that would snafu the whole deal. I just know that I would not feel comfortable with a device that was of his own accord deactivating part of my engine. There have been enough negative reports to certainly give me pause about an active VCM piece of equipment.

I was thinking about this subject earlier today and it occurred to me that one of the major drawbacks to extra miles per gallon in my driving environment with my "old" 2013 is the miles I get when I have the air conditioner engaged. The question that came to my mind was, if Honda had put as much time, effort, and money into a air-conditioning control device that would make the engine more efficient I wonder what kind of EPA numbers they would get? The deal is however, if I understand correctly, the EPA does not do its testing with air-conditioning activated. This would be a whole another set of tests and reports and since they are set up to make their test without it and the public has grown to accept this methodology, trying to change the ballgame now would probably meet with a lot of resistance. And that is probably the reason that Honda does not try to get more miles per gallon by improving the efficiency of their air-conditioning system. Why rock the boat?

"Money, money, money!!!"
 
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