Cold start question

[anthonylee337]

Only on cold days my car starts but sounds like the battery is weak because it doesn't turn the motor over as fast but returns to normal when the temp goes up. My battery is factory installed and less than three years old. Does anyone else experience this?

[wasinger3000]

Only on cold days my car starts but sounds like the battery is weak because it doesn't turn the motor over as fast but returns to normal when the temp goes up. My battery is factory installed and less than three years old. Does anyone else experience this?

Mine did that for a few weeks then it finally died. I went to the dealer and it wouldn't start after driving 40 min. Got it replaced under warranty.

[ZSHO]

I would try to make an appt a.s.a.p with your service advisor before you get stuck somewhere,check to see if the eye on the battery is green,replaced mine last year under warranty,also gave me an upgraded battery which has more cranking amps.http://www.ecoboostperformanceforum.com/index.php?action=dlattach;topic=299.0;attach=5385;image replaced it with the BXT-65-850

[anthonylee337]

It's going in tomorrow for an oil change so I will have it checked-the eye is neither red or green on the battery.

[ZSHO]

It's going in tomorrow for an oil change so I will have it checked-the eye is neither red or green on the battery.

Check out my last post with the updated battery,big difference when they installed it,good luck and keep us updated. http://www.ecoboostperformanceforum.com/Themes/zentoa_20b/images/post/clip.gif  http://www.ecoboostperformanceforum.com/index.php?action=dlattach;topic=299.0;attach=5233;image

[SHOdded]

Do you have a multimeter?  Put it on Voltage, at a setting > 14V.  Red wire/clip to red (+ terminal), black wire/clip to black (- terminal) connection.  If the battery is below 12.6V with the engine turned off, it is starting to give.  If between 12.6V and 12.8V, the battery is likely fine.  And, as I posted earlier this morning, the "eye" (a built in battery tester) is not the most reliable of indicators once the battery has been put into use.  But the dealership probably has a more sophisticated battery tester they can verify it with.

[wasinger3000]

To warranty the battery it has to pass 2 tests performed by the dealer. It needs to be within the 3yr/36k as well.

One test is amp rating and the other is slipping my memory at the moment.

[ZSHO]

To warranty the battery it has to pass 2 tests performed by the dealer. It needs to be within the 3yr/36k as well.

One test is amp rating and the other is slipping my memory at the moment.

They perform a draw test and as you mentioned they check the amp rating,also as SHOdded mentioned a descent multimeter will be suitable.

[Frozen Taurus]

I replaced mine this past summer after I found out it barely had a half hour power reserve then it would die on me. I would classify the factory battery a medium duty at best 

[IHeartGroceries]

I always forget about it, but I replaced my battery in June 14. It's a 13, and I bought it 11/13. Probably had 16k miles on it at the time...

Are Motorcraft batteries poor for longevity or what?

[SHOdded]

I think the ones that come from the factory are not that great, but you guys are lucky, you get a serious upgrade when you buy the Tough Max with its' 850 CCA and nice warranty.  How long was your SHO sitting on the lot?

[anthonylee337]

Well the factory replaced the battery-my car had to get jumped at the shop! My service writer told me the factory battery last about 3 years if your lucky. Glad it was still under warranty.

[SHOdded]

Cool!  Pic?

[anthonylee337]

Much better battery!

[slurppie]

Funny, just had mine replaced as well.... Along with the harness , tray and a few other things.

Supposedly all this (damage) took place between my last oil change and now (4k miles).