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Problem with 2012 Honda Accord 5sp transmission? #4251433
11/17/16 02:12 PM
11/17/16 02:12 PM
Joined: Mar 2003
Posts: 3,511
Colorado
Chris B. Offline OP
Chris B.  Offline OP
Joined: Mar 2003
Posts: 3,511
Colorado
Hello guys,
I have a 2012 Honda Accord with the VCM V6 and 5 speed tranny. I bought it new and it has exactly 60,000 trouble free miles on it. I have noticed recently that the car has developed a slight vibration while driving between 25 and 45 MPH. It appears to be directly tied to the gas pedal. if I'm just coasting and not applying the gas pedal at all, it is nice and smooth. As soon as I apply a tiny bit of pressure on the gas pedal(like 1/8" of depression) I can feel a slight vibration in the whole car especially the steering wheel and seat and I can also hear it. It sounds like the engine increases power and growls a tiny bit and is a vibration sound that is not normally there. I feel it mostly right around the 35mph mark.
If I accelerate fast or press the gas harder it does not happen. Only happens when being extremely light on the gas and adding enough power to barley increase the cars speed. It is not consistent at all and some times will not do this. If is does not do this, the cars is super smooth and quiet like normal. Because of this inconsistency I'm fearing something is wrong. All shifting seems smooth and strong otherwise. I have performed transmission drain and fills at the 15K, 30K, 45k and just now at the 60K mile marks all using the correct Honda ATF. The fluid is super clean and always has been.
Any ideas what this might be? I'm afraid to take it to the dealer because it is so slight they will probably say nothing is wrong. I can definitely tell something is up but it is very slight and not sure what might be going on? Thanks for any advice!

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4251435
11/17/16 02:18 PM
11/17/16 02:18 PM
Joined: Dec 2005
Posts: 651
Virginia
cpayne5 Offline
cpayne5  Offline
Joined: Dec 2005
Posts: 651
Virginia
Rotated or done anything else with your wheels/tires lately? Loose lugnuts will create all sorts of weird noises and vibrations.

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: cpayne5] #4251436
11/17/16 02:22 PM
11/17/16 02:22 PM
Joined: Mar 2003
Posts: 3,511
Colorado
Chris B. Offline OP
Chris B.  Offline OP
Joined: Mar 2003
Posts: 3,511
Colorado
Yes I rotated tires and they are new. Should be good to go but I'll double check.

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4251437
11/17/16 02:23 PM
11/17/16 02:23 PM
Joined: May 2009
Posts: 12,180
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,180
N.H, U.S.A.
Many times a trans will respond oddly to the state of tune of the engine.
Engine tune ok? U May have fuel metering issue. Are all original intake plumbing intact? The funny "tumors' on the intake plumbing are there to quell resonances.

I had to do a air sensor clean and get a mouse nest out of my airbox.

Make sure all is well.

Also make sure oil is not overfilled or wrong viscosity.

Honda 4 use massive EGR IDK if V6 uses egr - possibly no if it has VVT where cams can be phased to induce EGR.

Last edited by ARCOgraphite; 11/17/16 02:25 PM.

2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4251440
11/17/16 02:27 PM
11/17/16 02:27 PM
Joined: Jul 2005
Posts: 30,415
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,415
NY
Originally Posted By: Chris B.
Yes I rotated tires and they are new. Should be good to go but I'll double check.

I'd have the tire balance checked, and inspect the tires for defects to rule that out.


God Bless Our Troops

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: ARCOgraphite] #4251441
11/17/16 02:28 PM
11/17/16 02:28 PM
Joined: Mar 2003
Posts: 3,511
Colorado
Chris B. Offline OP
Chris B.  Offline OP
Joined: Mar 2003
Posts: 3,511
Colorado
Originally Posted By: ARCOgraphite
Many times a trans will respond oddly to the state of tune of the engine.
Engine tune ok? U May have fuel metering issue. Are all original intake plumbing intact? The funny "tumors' on the intake plumbing are there to quell resonances.

I had to do a air sensor clean and get a mouse nest out of my airbox.

Make sure all is well.

Also make sure oil is not overfilled or wrong viscosity.

Honda 4 use massive EGR IDK if V6 uses egr - possibly no if it has VVT where cams can be phased to induce EGR.


Fuel system is still 100% factory including fuel filter. Dealer did P/S, coolent and break fluid flushes. I have done oil and tranny fluid changes my self using correct fluids. Engine seems to be running like that day I bought it.

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: demarpaint] #4251443
11/17/16 02:30 PM
11/17/16 02:30 PM
Joined: Mar 2003
Posts: 3,511
Colorado
Chris B. Offline OP
Chris B.  Offline OP
Joined: Mar 2003
Posts: 3,511
Colorado
Originally Posted By: demarpaint
Originally Posted By: Chris B.
Yes I rotated tires and they are new. Should be good to go but I'll double check.

I'd have the tire balance checked, and inspect the tires for defects to rule that out.


I just did. The car was doing this before getting tires rotated and balanced and still doing this after. Only does it when slightly depressing the gas pedal and stops immediately after letting off the gas like mentioned above.

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4251475
11/17/16 03:14 PM
11/17/16 03:14 PM
Joined: Feb 2009
Posts: 8,776
Texas
440Magnum Offline
440Magnum  Offline
Joined: Feb 2009
Posts: 8,776
Texas
Check the engine/transmission mounts. FWD cars do really screwy things when a mount goes bad and the drivetrain moves around under loading.


'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
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'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4251480
11/17/16 03:20 PM
11/17/16 03:20 PM
Joined: Apr 2013
Posts: 2,326
The Northeast
mclasser Offline
mclasser  Offline
Joined: Apr 2013
Posts: 2,326
The Northeast
What you're describing sounds like "fish biting" due to an intermittent misfire under load. This is often mistaken to be a tranny issue.
Could be a faulty coil or plug(s) but it's not bad enough yet to trip a CEL.

Wouldn't hurt to clean the MAF and run a tankful of Techron cleaner. Does this car have VCM?

Last edited by mclasser; 11/17/16 03:24 PM.

2018 Hyundai Elantra VE -- 4K
2013 Honda Pilot EX-L 4WD -- 56K
2002 Honda Accord EX-L -- 211K

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4251486
11/17/16 03:35 PM
11/17/16 03:35 PM
Joined: Feb 2013
Posts: 3,117
Virginia
bigt61 Offline
bigt61  Offline
Joined: Feb 2013
Posts: 3,117
Virginia
Usually a misfire under load will get worse w increase in throttle, so probably not a coil/wire breakdown. This may be a low speed pre ignition problem. Try hi octane fuel for one tank and see if it helps. Switch to M1 oil (more magnesium, less calcium) as a possible long term solution. IMO you're changing your ATF way too often. Every 60k should be plenty.


92 Suburban 2500 7.4L 58k M1_0w40 5yr OCI
99 Olds Aurora 4.0L 91K M1_5w30 5yr OCI
13 Dodge Dart 2.0L 30k PP 0w20 OLM OCI
70 Camaro 5.7L 59k
Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4251490
11/17/16 03:44 PM
11/17/16 03:44 PM
Joined: Apr 2013
Posts: 2,326
The Northeast
mclasser Offline
mclasser  Offline
Joined: Apr 2013
Posts: 2,326
The Northeast
Bad axles also vibrate under acceleration.


2018 Hyundai Elantra VE -- 4K
2013 Honda Pilot EX-L 4WD -- 56K
2002 Honda Accord EX-L -- 211K

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: 440Magnum] #4251506
11/17/16 04:22 PM
11/17/16 04:22 PM
Joined: Jun 2004
Posts: 14,505
Top of Virginia
Hokiefyd Offline
Hokiefyd  Offline
Joined: Jun 2004
Posts: 14,505
Top of Virginia
Originally Posted By: 440Magnum
Check the engine/transmission mounts. FWD cars do really screwy things when a mount goes bad and the drivetrain moves around under loading.


This was going to be my recommendation as well. The Honda V-6 engine mounts in general don't have a squeaky-clean track record, and the active mounts on your VCM application add another reliability variable. 4 years old and 60k miles is a little early to be having engine mount problems, but it wouldn't be unheard of, either.

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4252544
11/19/16 01:08 AM
11/19/16 01:08 AM
Joined: Mar 2003
Posts: 3,511
Colorado
Chris B. Offline OP
Chris B.  Offline OP
Joined: Mar 2003
Posts: 3,511
Colorado
Appreciate all the info gentleman!

Tires were balance and rotated recently. This was going one before and after this was done.

Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4262090
11/30/16 04:51 PM
11/30/16 04:51 PM
Joined: Nov 2006
Posts: 19,893
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 19,893
MA, Mittelfranken.de
Is the vibration mostly in eco mode?


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Re: Problem with 2012 Honda Accord 5sp transmission? [Re: Chris B.] #4262109
11/30/16 05:11 PM
11/30/16 05:11 PM
Joined: Nov 2006
Posts: 19,893
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 19,893
MA, Mittelfranken.de
Too late to edit. I would give the rear mount a good looking at, it will cause all the symptoms you describe.
This is how it looks if its not blown, it supports the engine by a bolt through the bar on top to the rear (actually the right side) of the engine keeping the engine from sitting on the top of the mount frame.


When its blown the top collapses down and the engine will sit down on the mount in the middle and the rubber piece in the front and cause vibration. This one is totally blown out.




ASE L1, Master. Deutsch Meisterbrief.
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