Last post on Dec 07, 2013 at 12:41 PM
You are in the Honda Accord
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Honda Accord, Sedan
#1411 of 1618 Re: vibrations and rattles with AC system on when car at stop with 2010 LXP. [rustum]
Apr 29, 2011 (8:29 pm)
I only had one car with with an oddball noise with the ac on - it was a ford escort with a manual transmission. If you had it in neutral with the clutch engaged, you would get a rattling called 'gear rattle' or 'gear rollover noise'. The AC lowered the idle speed just enough to show the condition.
The clutching in an out of the ac is normal on most cars, my 06 subaru in mild weather would clutch in and out every ten seconds or so sitting in a drive thru with the ac on a fairly low fan setting (auto climate control). And beside the ac clutch, they start the electric engine cooling fan at the same time.
Only cars where the ac doesn't clutch in and out when on are ones that have a variable displacement compressor (my 2000 BMW did ).
It really sounds like the idle speed of your car is right on the edge, with the ac on and if an automatic transmission vehicle - they idle them really low. If low enough you start to get the vibrations due to the engine getting close to stall speed. If you add just a touch of fuel with the accelerator while still on the brake, i bet it smooths out - indicating that due to emissions, etc it is just a very low idle speed. If you have a lot of miles on the car, sometimes cleaning the air bypass with carb cleaner helps. Had to do this every so ofton on a 97 v6 dodge spirit I owned.
I have been behind a honda passport in the city, watching the exhaust pipe at the back shaking badly when stopped for a red light, which tells me the engine was generating a lot of vibes.
Some cars it is the nature of the beast, for some slight shaking once in awhile, but if often, I would think either computer update, new air filter, clean idle bypass. Try dumping the computer memory and let it learn it's idle again after new air filter - had to do this on ford escort to get idle right after new air filter. Removed battery power for a bit, then reconnected, started, and held engine rpm's at 4k for bit.
My 08 EX-L V6 accord doesn't have have this issue (yet)...
#1412 of 1618 Weak Bass/Subwoofer In 2011 Accord EX-L Coupe
May 03, 2011 (11:55 am)
Just picked up my brand new 2011 Accord EX-L V-6 6 spd. (no navi system) last nite. I love the car - the power and the solidity are great improvements over my 2004 (which was no slouch either).
However, I've noticed that, even with the bass and/or the subwoofer settings boosted, there does not seem to be a very strong bass beat to the audio (CD) playback, as well as that adjustments to these settings seem to have only a minimal effect on the low range sound.
Is this normal? I believe the radio may be less wattage than the one in my '04 Accord (also a V-6 EX-L 6 spd.), but it seems kinda gutless to me. I expected more from a 260 watt system.
Any thoughts before I go back to the dealer with it?
#1413 of 1618 Re: Weak Bass/Subwoofer In 2011 Accord EX-L Coupe [hondalova]
May 03, 2011 (1:53 pm)
Although there is always the possibility of something is not working correctly (wire not connected) it may be just the difference from your old Accord and your new one.
Speakers have a few parts that flex (suspension spider, cone, front suspension surround) and they do need to break in a little from use. You may just need to wait a bit for things to loosen up.
#1414 of 1618 Re: Weak Bass/Subwoofer In 2011 Accord EX-L Coupe [hondalova]
May 03, 2011 (3:46 pm)
I owned a 2008 EX-L V6 and found that the satellite radio sound lacked any oomph but the CD left near center on all the adjustments was fine and produced sufficient enough bass for my taste. I could really play around with all the audio adjustments for the satellite radio and approach the sound quality of the CD player but boy if I forgot that I had made those adjustments and threw a CD with all the adjustments emphasized I felt I came close to blowing a few speakers.
Iím now driving a 2010 EX-L V6 and these traits still hold true but there does seem to be somewhat less bass with this vehicle. From this small sampling I canít wholeheartedly say that there are variations from one car to another but, but personally that has been my experience.
#1415 of 1618 Re: vibrations and rattles with AC system on when car at stop with 2010 LXP. [jmillerjmiller]
May 04, 2011 (7:31 am)
Thanks for the feedback. I am observing the behavior. It does not happen that loud always though. I will try to record it when it is happening again.
#1416 of 1618 Re: 2008 accord 4 cyl E [thegraduate]
May 05, 2011 (4:16 pm)
The entire Throttle body just went out on my 2008 honda accord with only 44,000 miles. It seems like this ought to be a recall issue
#1417 of 1618 Re: Weak Bass/Subwoofer In 2011 Accord EX-L Coupe [mrbill1957]
May 06, 2011 (12:44 pm)
I think there is some truth to what both of you have said. The bass and treble settings seem to be adjusting better now than the 1st 1-2 days I had the car. And there is plenty of bass and thump when I push the bass level up. But the subwoofer adjustment continues to produce no discernible difference in sound so I will have it looked at when I come in for my 1st oil change (which, at my rate of travel, will be in about 7-8 weeks).
I to experienced a disparity in the strength of the playback in my '04 Accord - the CD and XM channels displayed similar levels of response to volume and tone settings, but switch to the FM radio after listening to a CD or XM song at louder volume and you could get blown out of your seat.
As a musician too, I'm well aware that different songs have different recording levels and that, when I've used the automatic sound leveling function on my computer software to burn a disc on my own for the car, that can also impact the sound quality, making some songs stronger or weaker than others.
I guess we'll just wait and see. I'm still falling in love with the damn car anyway!
#1418 of 1618 Okay - A little less "in love" than before
May 23, 2011 (11:33 am)
Still enjoying my new Accord V-6 6spd. except for one thing - the mileage SUCKS! I mean - I have almost 1400 miles on the car - probably 85-90% highway, and I'm averaging 22mpg-to barely 23 mpg (using A/C less than 50% of the time). I'm the only person in the car. I've checked tire pressure and its at or slightly above specs. I've also tried feathering the throttle, slowing my average hwy. pace, increasing my use of cruise control, and upshifting at lower rpm to keep the tach in the 1500-2200 rpm range before getting into high gear - this car is definitely geared shorter than my '04 was. It runs fine - and sure has plenty of "giddyup" but I never expected the mileage to be this poor - my '04 V-6 6 spd. was getting 26.5-27mpg consistently even while burning oil with 162,000 miles on it.
Is this "normal" mileage for this car? Should I expect more improvement with additional break-in time? I never expected to see the EPA 26 mpg highway rating in the real world, but 24-25 mpg seemed reasonable, or am I wrong?
#1419 of 1618 Re: Okay - A little less "in love" than before [hondalova]
May 23, 2011 (2:02 pm)
They rate the combined fuel economy at 21 mpg's. I think what you're seiing is what you're going to get. My average combined V6 Sedan with VCM is 23-24.
#1420 of 1618 Re: Okay - A little less "in love" than before [hondalova]
by MrShift@Edmunds HOST
May 23, 2011 (3:26 pm)
I agree. I think that this is more or less the real world MPG. You may see a little bump after 5,000 miles or so, and you can make small improvements (as in SMALL improvements) by the types of tires and oil you use.
Beware of "increase your MPG!!" gadgets on eBay.