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endeend
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Purchased a 2013 Honda Accord Sport Automatic CVT and i'm noticing that the car hitches/pulls non-stop at low speeds. Ive spent past week mapping it out and basically it's happening at these intervals:
20mph, car feels like it's downshifting, probably is.
15mph, car jerk/hitches and decelerates significantly
10mph, car feels like it's downshifting, probably is.
5mph, car jerks/hitches (very unsmooth) both when accelerating or decelerating past exactly 5mph.
I'm in traffic most of my drive so having the car downshift/jerk suddenly 4 times in a 20mph range is extremely irritating.
Is anyone else experiencing this? Is this just standard CVT behavior?
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danielgr
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endeend wrote:
Purchased a 2013 Honda Accord Sport Automatic CVT and i'm noticing that the car hitches/pulls non-stop at low speeds. Ive spent past week mapping it out and basically it's happening at these intervals:
20mph, car feels like it's downshifting, probably is.
15mph, car jerk/hitches and decelerates significantly
10mph, car feels like it's downshifting, probably is.
5mph, car jerks/hitches (very unsmooth) both when accelerating or decelerating past exactly 5mph.
I'm in traffic most of my drive so having the car downshift/jerk suddenly 4 times in a 20mph range is extremely irritating.
Is anyone else experiencing this? Is this just standard CVT behavior?
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That said, when coming to a stop off-throttle with the engine/tranny well warm, typical Honda CVTs tends to keep the "gear" engaged the longest possible to improve fuel economy. Basically, as long as it is engaged you are using zero fuel.
Then when approaching the stall point at very low speed (usually when closing to 5mph) the car will go into the typical stop situation, kind of like if you had pressed the clutch in a manual car (though not exactly like that in the CVT). That transition is certainly well felt if you are paying attention. If you then press the throttle pedal without having actually come to a stop you'll get another not so seamless transition. The actual behaviour is also influenced by whether you are using the A/C or not.
I would guess that is what's happening to you, and if that's the case it's indeed the "Honda CVT behaviour at low speed".
Now, I would recommend you to smooth up your driving on those situations, which should solve most of the problem. If you are constantly going ON-OFF throttle on such situations it can be pretty much annoying. Turning the ECON button ON could also help you there, as it will smooth your throttle inputs. Personally, it has never really bothered me, though it is true that once you get used to the otherwise silky smooth behaviour of the CVT tranny those changes become more noticeable.
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grover432
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Does this happen on the "Sport" model or is there a "sport" setting for the CVT? If there is a sport setting, does it do it when you are in the non sport mode?
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superchg2
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danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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If an engine is running, it is using fuel.
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danielgr
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superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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If an engine is running, it is using fuel.
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That could either be:
- an honest remark, in which case it simply highlights how little you know about engines... ,
- a word-play, in which case it simply highlights how little I know about English.
Either way, not so interested as long as the OP understood what I meant.
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01Romanss
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Every CVT Accord I've test driven has done this at slow speeds ranging from from 5 -15 mph. That's one reason I'm looking at the V-6. It has more power and a non CVT.
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01Romanss
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Every CVT Accord I've test driven has done this at slow speeds ranging from from 5 -15 mph. That's one reason I'm looking at the V-6. It has more power and a non CVT.
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01Romanss
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I also found this comment from a Motor Trend article:
"Enthusiasts aren't fans of CVTs. We often compare them to rubber bands, with the engine winding up like crazy while the power is delivered like a slow, elastic pull as the rest of the drivetrain catches up. Honda's new "G-Design Shift" CVT is the best I've driven. Its behavior most closely mimics a conventional automatic, with engine speed building smoothly rather than jumping to the torque peak and sitting there. Engine speed rises and falls as if it were actually changing gears instead of just moving its ratios around. The only complaint is that it's a little jerky at parking lot speeds; something we hope is unique to our pre-production test cars."
Read more: http://www.motortrend.com/roadtests/coupes/1209_2013_honda_accord_first_test/viewall.html#ixzz28aAfyx6y
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superchg2
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danielgr wrote:
superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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If an engine is running, it is using fuel.
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That could either be:
- an honest remark, in which case it simply highlights how little you know about engines... ,
- a word-play, in which case it simply highlights how little I know about English.
Either way, not so interested as long as the OP understood what I meant.
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danielgr, your pompous attitude is too predictable.
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danielgr
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superchg2 wrote:
danielgr wrote:
superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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If an engine is running, it is using fuel.
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That could either be:
- an honest remark, in which case it simply highlights how little you know about engines... ,
- a word-play, in which case it simply highlights how little I know about English.
Either way, not so interested as long as the OP understood what I meant.
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danielgr, your pompous attitude is too predictable.
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Just as much as your childish one. Now if you have anything to actually add to the discussion I'll be glad to read it; anytime.
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Potenza
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superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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Hook up a ScanGauge to your car and it will basically show you when you are using no fuel. Coasting in neutral might show 100mpg or 800mpg or something very high, but coasting in gear, at a point when your injectors are off, it will read 9999mpg. That is signifying infinite mpg. In other words, no fuel is being used.
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Drum
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Potenza wrote:
superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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Hook up a ScanGauge to your car and it will basically show you when you are using no fuel. Coasting in neutral might show 100mpg or 800mpg or something very high, but coasting in gear, at a point when your injectors are off, it will read 9999mpg. That is signifying infinite mpg. In other words, no fuel is being used.
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I have a scanguage hooked up to my 2007 Accord and it has never indicated 999 mpg. Not coasting in gear at 80mph, not ever. The most is has ever been was about 350 mpg going 80 down a steep hill in neutral. This for a stick shift, so maybe automatics are different, but according to my scanguage the fuel never shuts off. And yes I even look at the fuel flow indicator and it has never been at zero.
This is after 156,000 miles, so it is not like I am new to the car.
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superchg2
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danielgr wrote:
superchg2 wrote:
danielgr wrote:
superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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If an engine is running, it is using fuel.
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That could either be:
- an honest remark, in which case it simply highlights how little you know about engines... ,
- a word-play, in which case it simply highlights how little I know about English.
Either way, not so interested as long as the OP understood what I meant.
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danielgr, your pompous attitude is too predictable.
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Just as much as your childish one. Now if you have anything to actually add to the discussion I'll be glad to read it; anytime.
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I stand corrected that some modern engines in over run condition can have 0% fuel injected to the engine.
I found this out on a couple of other forums, where members actually provided factual info, rather than making snide remarks such as
"it simply highlights how little you know about engines..."
to other forum members.
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carcrazy84
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You confidently corrected him with a terse, incorrect claim. He could have been far harsher.
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superchg2
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carcrazy84 wrote:
You confidently corrected him with a terse, incorrect claim. He could have been far harsher.
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...and harshness is the name of the game here at TOV, after all!
:)
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JeffX
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Drum wrote:
Potenza wrote:
superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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Hook up a ScanGauge to your car and it will basically show you when you are using no fuel. Coasting in neutral might show 100mpg or 800mpg or something very high, but coasting in gear, at a point when your injectors are off, it will read 9999mpg. That is signifying infinite mpg. In other words, no fuel is being used.
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I have a scanguage hooked up to my 2007 Accord and it has never indicated 999 mpg. Not coasting in gear at 80mph, not ever. The most is has ever been was about 350 mpg going 80 down a steep hill in neutral. This for a stick shift, so maybe automatics are different, but according to my scanguage the fuel never shuts off. And yes I even look at the fuel flow indicator and it has never been at zero.
This is after 156,000 miles, so it is not like I am new to the car.
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That's interesting because even on my 13 year old S2000, I get an indicated fuel cut when off the throttle while in gear. In fact, every car I've ever connected to a scan gauge has indicated fuel cut when off the throttle and in gear (under normal circumstances). As I recall though, there's a setting on the scan gauge which can impact what's considered fuel cut, so maybe the threshold on your scan gauge is off by a little bit.
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Restless
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superchg2 wrote:
danielgr wrote:
superchg2 wrote:
danielgr wrote:
superchg2 wrote:
danielgr wrote:
Basically, as long as it is engaged you are using zero fuel.
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If an engine is running, it is using fuel.
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That could either be:
- an honest remark, in which case it simply highlights how little you know about engines... ,
- a word-play, in which case it simply highlights how little I know about English.
Either way, not so interested as long as the OP understood what I meant.
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danielgr, your pompous attitude is too predictable.
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Just as much as your childish one. Now if you have anything to actually add to the discussion I'll be glad to read it; anytime.
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I stand corrected that some modern engines in over run condition can have 0% fuel injected to the engine.
I found this out on a couple of other forums, where members actually provided factual info, rather than making snide remarks such as
"it simply highlights how little you know about engines..."
to other forum members.
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An EG8 with D15B2 won't inject fuel while on-gear, gas pedal not pressed and RPMs are above 1500rpm.
Its even mentioned in one of manuals.
A pretty modern engine that is :D
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