Well drove the car to work in morning, then came back like 12. The car sat to 3pm. And well i started the car but it was very weak start?

 

I had the same thing happen to me today. I went to work at 7:30, and the car started fine despite temps in the lower teens, but when I went to lunch around noon, it had a very weak start, then when I left at 5, it started weak again. Hope it isn't a sign of a bad battery or starter. I just purchased the car 3 weeks ago as a CPO vehicle.

 

I have had this happen to me several times. I took it to the dealership and they said they could not get the car to do it. My car does it every now and then but nothing to worry about.

 

how cold was it? It can be the battery, spark plugs, fuel, starter or even the oil that is causing this...

 

I think weak starts are pretty normal in cold temps on the stock battery. I usually get it in temps below ~15-20 degrees.

 

Funny, for me it actually started fine this morning when it was 10-15, but when it was 30-35 at lunch and after work, it had the starting 'issue' On my way home my low fuel light went on which I found means about 4 gallons left...and the spot I parked in at work was a little 'uphill' (back end lower than front end). I guess I'll find out if it does it again tomorrow. I don't think it is bad gas (92 Octane) since I took a trip to Philly on this tank and I got 31 mpg on the turnpike, and am getting 28 overall

 

go to the parts store and get a free battery and electrical system test

Especially when its cold- the starter takes a HUGE amount of power from the battery.
IN normal conditions-15 minutes of driving at speed will fully recharge the battery
If you are not getting much steady rpm over 2000 and doing short trips, lots of slow or stop and go, using the wipers-seat heat-fan-stereo-headlights etc etc,,,then you are not getting a full recharge in the battery

The gen3 battery seems to last 3 maybe 4 years if lucky. I got 5 out of my gen2s

Newer acura batteries seem to have a problem too--the cost of buying the cheapest stuff~

 

those extreme cold temps are when a 0W20 oil is good to use for easier use of the starter
W means Winter and is the slipperyness of the oil- its ability to flow
as modified from the 20 by using additives,,,below 32F

Once the oil is warmed up-200F, its 20 viscosity

 

It was like 35-40.

 

I've had the same problem on my 2008 a few times. According to another thread I posted up a while ago, it's a battery issue. I've had it happen in the cold (10-20 deg) or in warmer temps (50-60 deg) so it's not just limited to cold. You can have Acura do a battery test, but it might be a waste of your time. I just plan on buying a better battery at some point, because even if the battery fails the test, Acura is just going to give you another shitty Acura battery. I have however heard a story on here of someone whose battery failed twice, and Acura wrote him a check for the price of an OEM battery. He put that cash towards a good batt.

 

It also had this happen to me. Is it like, it starts but its kinda like boggy for like 1 sec then it starts to idle fine? is that what you guys are experiencing?

Well thats what happens to me, here in hawaii the temp stay about 70-85 degree's and it doesnt matter if its a cold start or not. im always on flat ground with empty-full tank it it still does it. I also changed the battery and it still does it. I dont think its something to worry about but its also something I dont want to hear.

Anyother thoughts what the problem is?

 

how many miles on the car? What oil do you use?

 

^^ appx 35k
Mobil 1 fully synthetic, not sure if its 5w20 or 5w30 either or

 

did you ever change the engine air filter? Seafoam the car?

 

^ nope and nope, but im not the original owner, got the car at about 30k so idk what the original owner had done.

 

From what people are describing .. (the OP and WalkerUA6) .. sounds like it's the way our ULEV engines are designed to start... occasionally they can have a "weak start" or seem like the engine has rolled over... but it's struggling to get up to speed... that happens on my TL from time to time in nearly 100k miles. I even replicated it at the dealership (i know, wow! what luck) and they told me it was the ULEV emissions characteristic of this engine that caused it to regulate the emissions at times during startup ..

Dont' know more details, but it's pretty random, and more common in warmer temps (spring/summer) for me.

 

So is it something we should worry about?

 

with ULEV, the crank is slightly delayed, but it shouldn't delay it to the point where your cranking for 4+ seconds.

 

Walker -- i re-read your description and it sounds 100% like what happens to my TL from time to time.. and no, it's certainly not anything i worry about. It hasn't done this in about 20 or 30,000 miles...

 

csmeance: where are you reading 4+ seconds, i musta missed something...

 

I think its for like 2 sec, but not 4 sec. thats forsure

 

see if this applies...

https://acurazine.com/forums/3g-tl-2004-2008-93/tl-noob-some-questions-long-crank-time-exhaust-635725/

My wife's 1997 Nissan Maxima GXE started in a fraction of a second EVERYTIME... my TL takes at least 1/2 to 3/4's of a second up to 1 second .. it does NOT however seem like it's weak in cranking.

Once it's started, OCCASIONALLY it will take a second or two to get up to speed -- it does NOT sound like it's choking or stalling, just like it's programmed to slooowly get up to operating rpms... This is what I'm assuming the OP and Walker are referring to.

If your TL is "weak" in terms of actually cranking the engine, absolutely consider a new battery, the starter itself, 02 sensors, crankshaft sensors, etc.

 

just a rough estimate, a while back, one member posted a video here and his car was cranking for around 5 seconds and the dealer replaced the ECU on his car, then it cranked right up.