Weird behaviour on cold start

[itsAlex]

I'm not really concerned, just wanted to know if anyone else experienced this:

This morning I went to start my car and right when I cranked it, the engine turned over but then it sounded like it was about to die. It didn't though, the revs went back up on its own. This all happened within the span of less than 2 seconds.

I just wanted to know if anyone has an explanation for this.

[jawn]

Originally Posted by itsAlex

I'm not really concerned, just wanted to know if anyone else experienced this:

This morning I went to start my car and right when I cranked it, the engine turned over but then it sounded like it was about to die. It didn't though, the revs went back up on its own. This all happened within the span of less than 2 seconds.

I just wanted to know if anyone has an explanation for this.

How fresh is your battery?

[Tcoat]

Sometimes weird things happen. If it only happened the once and leveled out on it's own then don't sweat it. There are a thousand things that could cause a small blip like that and as long as they don't keep happening there is no problem.

[mpross]

Mine does that from time to time. It doesn't sound like it's about to die but trips over itself and stutters very briefly and then goes back to normal. Usually only when it's sat for a while and it's 40 degrees or less outside

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[Zyo81]

I had several cold start issues with mine the first year. Running rough, taking forever to crank over, also idle surging. They flashed my ecu after I printed out the tsb so they could no longer plead ignorance and since it has been much better. I think the battery is too small though. It still cranks relatively slow below freezing compared to most other cars I've had.

[Tcoat]

Originally Posted by Zyo81

I think the battery is too small though. It still cranks relatively slow below freezing compared to most other cars I've had.

The battery size is fine and there are plenty of cranking amps to spare. It is however a much higher compression engine than most which makes the starter work way harder than other cars. This of course gets even harder when things are cold and shrunk up a hair. The thicker oil in the cold doesn't help much either but that applies to all cars.

[Djratrap]

Mine was doing that for a while also. I replaced the battery and it's fine now. 3 years and 80k on the old battery.

[drewbot]

Originally Posted by itsAlex

I'm not really concerned, just wanted to know if anyone else experienced this:

This morning I went to start my car and right when I cranked it, the engine turned over but then it sounded like it was about to die. It didn't though, the revs went back up on its own. This all happened within the span of less than 2 seconds.

I just wanted to know if anyone has an explanation for this.

Normal

[S84kam]

Originally Posted by jawn

How fresh is your battery?

why does everyone always suspect the battery? if it starts fine its not the battery. OP mentions it starts but it sounds like its going to die. I have an Optima battery just because I've been having starting issues, but i still have problems. Mine doesn't even start from time to time.

I figured the engineers really fucked up on this part. Live with it i suppose.

[NyC Zn6]

E85 tune?

[Tcoat]

Originally Posted by S84kam

why does everyone always suspect the battery? if it starts fine its not the battery. OP mentions it starts but it sounds like its going to die. I have an Optima battery just because I've been having starting issues, but i still have problems. Mine doesn't even start from time to time.

I figured the engineers really fucked up on this part. Live with it i suppose.

I find it odd how some have issues and others never have even a blip. Mine has started first time every time without a moment's hesitation. Even after sitting for two weeks in sub zero temperatures it started like it was the middle of summer. Yet others (like yourself) seem to have problems. Is yours stock? Not pointing fingers or anything I am just curious as to how they can be so different.

[itsAlex]

Originally Posted by jawn

How fresh is your battery?

The car isn't even a month old yet, the battery is pretty much new. Besides, I doubt it's a battery issue as if it was, the car would struggle to run even after the engine turns over

Originally Posted by S84kam

why does everyone always suspect the battery? if it starts fine its not the battery. OP mentions it starts but it sounds like its going to die. I have an Optima battery just because I've been having starting issues, but i still have problems. Mine doesn't even start from time to time.

I figured the engineers really fucked up on this part. Live with it i suppose.

As long as it starts when I need it to, the quirks are fine. I just hope this isn't the beginning of reliability issues...

Originally Posted by NyC Zn6

E85 tune?

E85 is out of the question, it's not available where I live. The closest E85 station near me is in a neighboring city.

[itsAlex]

Originally Posted by Tcoat

I find it odd how some have issues and others never have even a blip. Mine has started first time every time without a moment's hesitation. Even after sitting for two weeks in sub zero temperatures it started like it was the middle of summer. Yet others (like yourself) seem to have problems. Is yours stock? Not pointing fingers or anything I am just curious as to how they can be so different.

Well, mine has also started every time just like yours has, its just this one time that it didn't start according to what I assumed was "normal". Nonetheless it still started and ran fine though.

[Tcoat]

Originally Posted by itsAlex

Well, mine has also started every time just like yours has, its just this one time that it didn't start according to what I assumed was "normal". Nonetheless it still started and ran fine though.

Well if it puts your mind to ease at all mine is at 60K miles in a little over a year and a half of owning it (new) and never a spot of trouble with anything!