jefflikesbagels

The car choking is exactly how I'd describe it on my 2012 FWD as well. I actually just had it happen on my car for the first time last week. Based on all of the issues surrounding the transmission and torque converter, I'd place my bets on that rather than anything related to the engine itself. It was a brief moment of "WTF?" but I haven't tried to reproduce it since then. I'm going to focus on getting the 16-030 TSB done on my car first, then see if these other weird issues go away with it.

jefflikesbagels

It's hard to think of a mechanical explanation for the choking feel, but if I were to speculate, maybe the torque converter is staying briefly locked through the gear change, giving you that jarring jerk motion because suddenly there's no power output while the drivetrain is still connected to the wheels. I have no idea if unlocking during a gear change is a part of the normal procedure, so again, purely speculation and assume everything I'm saying is completely stupidly wrong. There's a million different things happening with these fancy new automatic transmissions, and I really need to just disassemble one to understand fully what's going on.

lltfly

I did the 16 -030 on last Saturday. it is smoother and no judder so far.

fryrice

Hi everyone, its back to fall here in New England and the symptoms of the choking start after sitting overnight has surfaced again.

Not sure what to do but just live with this issue.

lltfly

Hi, me also.
I feel like the ecu may need some time to adapt to the temperature change. I cleaned up the massive air flow sensor, but it was still at the late spring this year, then a couple of days later, it is just gone.

fryrice

Sounds like a good idea. I'm going to do a "battery pull" and reset the car and hopefully it will be better

lltfly

Hi, I did that also on the battery. after a couple of days the symptom went away

losiglow

iTrader: (1)

Based on those earlier videos, it seems that a cylinder is misfiring right before startup. The "glitch" at 0.03 on fryrices video. Have you tried replacing or examining your spark plugs? I have 127K on my 2012 TL and I've never had this problem. Starts exactly the same since I purchased it with 58K. I've replaced my plugs every 50K miles with NGK Iridium's recommended in the manual. It may be worth a try.

fryrice

Over the summer I just replaced my spark plugs and I am still having the same problem.

Update: I did the battery pull but it did not fix the issue.

JM2010 SH-AWD

^^ Have you checked your oil level? If it is too low, the VTEC mechanism won't actuate properly and the car will exhibit similar behavior. Almost a limp mode kind of thing.

fryrice

This is just the startup, not sure where VTEC would come into play.

But oil levels are fine, this symptom happens to both me and my gf TL. Haven't had the chance to bring it into the stealership, but we will find the time to do it.

JM2010 SH-AWD

Sorry, I was responding to Jefflikesbagles' post #42 in which he seems to be describing issues while driving.

antlive

has anyone found a fix to this? my 2007 and wife's 2010 is doing this and I can't figure it out. thinking fuel pump. change spark plugs, ran sea foam through, checked battery, fuel pump relay switch.

jdigeorgio

Just over 100k miles and this past year I replaced the spark plugs, new battery, new alternator, timing belt, water pump. Cleaned the MAF sensor. New air filter. Running 93 octane. It’s definitely intermittent. Sometimes a long crank. Sometimes it cranks and stumbles for 10 to 15 seconds. This happens at cold start. Also had seen an inconsistent idle at times. Would idle smoothly at 750 and dip to 500 momentarily and the increase back up to 750 and smooths out. This is when warm.
Been to the dealer twice for this issue and despite them running a battery of diagnostics, they say all the readings are in range. They showed me pages of readings lol. The master tech said that essentially everyone with these cars and this amount of miles are seeing these sorts of issues and it’s nothing serious. He claims that components are getting weaker as they age - perhaps a sensor or even the fuel pump. He says next step is to leave it overnight in order for them to SEE the issues first hand. So far it’s behaved every time because it’s been warmed up when they look at it. Very frustrating though - shouldn’t be this hard.

antlive

man, no one has solved this issue yet???? my evap purge control valve on the 07 went out and I'm thinking this may have something to due with the hesitation. once I replace on the 07 and if it doesn't hesitate anymore, I will replace it on the 2010.

jdigeorgio

Just had my throttle body cleaned by the Acura tech at my local dealership. 110k miles or so. He said it may help and advised against the full induction system cleaning for various reasons. Very honest guy! It’s been over a week and I have not seen the bad start up issues or idle issues yet! So perhaps that’s the key - at least for me. Time will tell.

antlive

my wife had a full system clean and it still doing it.

jdigeorgio

Sorry to hear that - I guess there are different root causes. Mine seems to still be running and starting better ....